BMW Vehicle Models M5 2018-present Torque Specifications
BMW Vehicle Models M5 2018-present

BMW Vehicle Models M5 2018-present Torque Specifications

Complete BMW Vehicle Models M5 2018-present torque specifications guide. Includes factory-specified torque values, torque sequences, and technical specifications for all components including body, brakes, drivetrain, electrical, emissions sensors, fuel, exhaust, HVAC, and suspension. Essential information for proper assembly and maintenance.

Updated

Important Information

Safety guidelines and reference information for proper torque application

Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083

Common Torque Patterns

Star Pattern

Used for wheels and other circular bolt patterns

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

Common Mistakes to Avoid

Over-tightening

Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.

Prevention:

Always use a calibrated torque wrench and follow specifications exactly.

Incorrect Torque Sequence

Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.

Prevention:

Follow the manufacturer's specified torque sequence pattern.

Dirty Threads

Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.

Prevention:

Clean and inspect all threads before assembly. Use new thread locker if specified.

Reusing TTY Bolts

Torque-to-yield bolts are designed to stretch and must not be reused.

Prevention:

Always replace TTY bolts with new ones. They are single-use only.

Dry vs. Lubricated

Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.

Prevention:

Check if specs are for dry or lubricated threads. Use specified lubricant when required.

Recommended Tools

Torque Wrench (1/4" Drive)

Range: 2-25 ft-lbs
Small fasteners, delicate components

Torque Wrench (3/8" Drive)

Range: 10-100 ft-lbs
Most common automotive fasteners

Torque Wrench (1/2" Drive)

Range: 30-250 ft-lbs
Large fasteners, wheels

Angle Gauge

Torque-to-yield (TTY) bolts

Torque Wrench Care

  • Calibrate annually or after 5,000 clicks
  • Store at lowest setting
  • Keep clean and lubricated

Search Specifications

Search by component name, bolt size, or description

Torque Calculator

Convert between different torque units

4.4l Engine

Torque specifications for 4.4L Engine

Cylinder Head

1

Cylinder Head Bolts

M12 x 1.5
Torque Specification
1. 20 ft-lbs (27 N·m) 2. 90° 3. 90°
Important Notes
Cylinder head bolts should be tightened using a specific sequence (center out) and require a final torque angle. These are typically one-time-use bolts and must be replaced after removal.
2

Cylinder Head Cover Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
These bolts secure the cylinder head covers, sealing the spark plug access area. Torque evenly to prevent leaks. Estimated value based on similar components.

Crankshaft And Rotating Assembly

1

Main Bearing Bolts

M12 x 1.5
Torque Specification
1. 90 ft-lbs (120 N·m) 2. 60°
Important Notes
Main bearing bolts require a specific tightening sequence. They often include an additional torque angle after the initial torque. These are typically one-time-use bolts and should be replaced after removal.
2

Connecting Rod Nuts

M10 x 1.25
Torque Specification
1. 30 ft-lbs (40 N·m) 2. 50°
Important Notes
Connecting rod nuts should be tightened in a specific sequence and typically include an additional torque angle. These are often one-time-use nuts, and should be replaced after removal.
3

Flywheel Bolts

M12 x 1.5
Torque Specification
90 ft-lbs (120 N·m)
Important Notes
Flywheel bolts typically have a specific tightening sequence, and they are often one-time use. Estimated value based on common flywheel bolt sizes. Replace bolts when removed.
4

Crankshaft Pulley/Harmonic Balancer Bolt

M14 x 1.5
Torque Specification
90 ft-lbs (120 N·m)
Important Notes
Crankshaft pulley bolts are typically one-time-use and must be replaced when removed. Estimated value based on similar applications.

Oil System

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Oil pan bolts should be tightened evenly using a cross-tightening pattern to prevent leaks. Torque values may vary depending on if it is a metal or plastic oil pan. Estimated value based on common fasteners.
2

Oil Filter Housing Bolt

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Oil filter housing bolt must be torqued correctly to prevent oil leaks. Estimated value based on common fasteners.
3

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Oil drain plug bolt must be torqued to prevent oil leaks. Replace sealing washer if necessary.

Valvetrain

1

Valve Cover Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Valve cover bolts should be torqued evenly to avoid oil leaks. Estimated based on common fasteners.
2

Camshaft Sprocket Bolts

M8 x 1.25
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Camshaft sprocket bolts must be torqued correctly to maintain proper valve timing. Estimated based on similar applications.
3

Rocker Arms/Shafts Bolts

M6 x 1.0
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Rocker arm or shaft bolts must be torqued correctly for proper valve operation. Estimated based on similar applications.
4

Camshaft Bearing Cap Bolts/Nuts

M8 x 1.25
Torque Specification
1. 10 ft-lbs (14 N·m) 2. 30°
Important Notes
Camshaft bearing cap bolts/nuts must be torqued correctly to ensure proper camshaft alignment and oiling. Use the proper torque sequence. Estimated values based on similar applications.
5

Variable Valve Timing (VANOS) Solenoid Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
VANOS solenoid bolts must be tightened correctly for proper function. Estimated value based on common fasteners.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Timing chain tensioner bolt must be torqued correctly to maintain proper chain tension. Estimated value based on similar applications.

Intake System

1

Intake Manifold Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Intake manifold bolts should be tightened in a specific pattern to prevent vacuum leaks. Estimated value based on similar components.
2

Intake Manifold Support Bracket Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Intake manifold support bracket bolts should be torqued to prevent vibrations. Estimated value based on similar applications.
3

Throttle Body Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Throttle body bolts must be torqued correctly to prevent vacuum leaks. Estimated value based on common fasteners.
4

Fuel Injector Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Fuel injector bolts should be torqued to prevent fuel leaks. Estimated value based on common fasteners.
5

Fuel Rail Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Fuel rail bolts must be torqued to prevent fuel leaks. Estimated value based on common fasteners.
6

Fuel Injector Rail Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Fuel injector rail bolts must be torqued correctly to prevent fuel leaks. Estimated value based on common fasteners.

Exhaust System

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
1. 20 ft-lbs (27 N·m) 2. 45°
Important Notes
Exhaust manifold bolts must be torqued in a specific pattern. May require an additional torque angle. Estimated value based on similar applications. Use new gaskets.

Cooling System

1

Water Pump Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Water pump bolts must be torqued evenly to prevent coolant leaks. Estimated value based on common fasteners.
2

Water Pump Pulley Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Water pump pulley bolts must be torqued to ensure proper belt drive. Estimated value based on common fasteners.
3

Thermostat Housing Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Thermostat housing bolts should be torqued evenly to prevent coolant leaks. Estimated value based on common fasteners.
4

Coolant Drain Plug on Block

M12 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Coolant drain plug should be torqued to prevent leaks. Estimated value based on similar fasteners.

Ignition System

1

Spark Plugs

M14 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Spark plugs must be torqued to ensure proper sealing and heat transfer.
2

Ignition Coil Bolt

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Ignition coil bolts must be torqued correctly to ensure proper electrical contact. Estimated value based on common fasteners.

Sensors

1

Knock Sensor Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Knock sensor bolts should be torqued to ensure accurate readings. Estimated value based on similar applications.

Engine Accessories

1

Starter Motor Mounting Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Starter motor mounting bolts must be torqued to ensure proper mounting.
2

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Alternator mounting bolts must be torqued to ensure proper mounting.

8hp Transmission

Torque specifications for 8hp Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Ensure proper alignment of transmission before tightening. Use new bolts if specified by the manufacturer.

Transmission Oil Pan

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Tighten bolts in a criss-cross pattern to ensure even sealing. Use a new gasket if the oil pan was removed.

Transmission Drain Fill Plugs

1

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Use new sealing washers or O-rings as required. Do not overtighten. Note: This torque applies to both drain and fill plugs.

Mechatronics Unit

1

Mechatronics Unit Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Use a calibrated torque wrench. This is a low-torque application. Be careful not to overtighten and damage the mechatronics unit housing.

Valve Body

1

Valve Body Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Use a calibrated torque wrench. Tighten in a criss-cross pattern to ensure even pressure on the valve body.

Bellhousing

1

Transmission Bellhousing Bolts to Engine Block

M12 x 1.75
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Ensure proper alignment of the transmission before tightening. Use new bolts if specified by the manufacturer.

Output Shaft

1

Output Shaft Flange Bolts

M10 x 1.5
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Use new bolts if specified by the manufacturer. Ensure correct seating of the flange on the output shaft.

Cooler Lines

1

Transmission Cooler Line Fittings

M16 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Use a backup wrench when tightening fittings to prevent damage to the transmission housing. Ensure proper sealing.

Body

Torque specifications for Body

Fuel System

1

Fuel Tank Strap Bolts

M8 x 1.25
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Secures fuel tank straps to the vehicle underbody. Ensure proper tank support. Estimated bolt size and thread pitch.
2

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Attaches the fuel filler neck to the body panel. Important for fuel-tight seal. Estimated bolt size and thread pitch.

Exterior Panels

1

Fender Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Attaches the fenders to the vehicle's body structure. Estimated torque and bolt size.
2

Hood Hinge Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Secures the hood hinges to the hood and body. Estimated torque and bolt size.
3

Hood Latch Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Secures the hood latch assembly to the body. Estimated torque and bolt size.
4

Door Hinge Bolts

M10 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Attaches the door hinges to the door and body. Estimated torque and bolt size. Usually self-locking bolts.
5

Door Latch/Striker Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Secures the door latch mechanism to the door and striker to the door frame. Estimated torque and bolt size.
6

Rear Spoiler Mounting Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Secures the rear spoiler to the body. Estimated torque and bolt size.

Bumper And Lights

1

Bumper Cover Mounting Bolts/Fasteners

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Connects the bumper covers to the vehicle’s body. Estimated torque and bolt size. Plastic or low-torque bolts.
2

Headlight/Taillight Mounting Bolts/Fasteners

M5 x 0.8
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Attaches the headlights and taillights to the body. Estimated torque and bolt size.
3

Grille Mounting Bolts/Fasteners

M5 x 0.8
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Attaches the front grille to the vehicle’s body. Estimated torque and bolt size.

Body Trim

1

Rocker Panel/Side Skirt Mounting Bolts/Fasteners

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Connects rocker panels or side skirts to the body. Estimated torque and bolt size.

Roof Components

1

Sunroof Frame Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Secures the sunroof frame to the vehicle's roof. Estimated torque and bolt size.

Interior

1

Seat Mounting Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Secures the seats to the floor pan. Estimated torque and bolt size. Check for specific torque values in repair manual.

Brakes

Torque specifications for Brakes

Caliper Mounting

1

Caliper Mounting Bolts

M12 x 1.75
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Secures the brake caliper directly to the caliper mounting bracket. Ensure bolts are clean and lightly lubricated with anti-seize compound before torquing.
2

Caliper Mounting Bracket Bolts

M14 x 1.5
Torque Specification
110 ft-lbs (150 N·m)
Important Notes
Attaches the brake caliper mounting bracket to the wheel hub or suspension knuckle. Ensure bolts are clean and lightly lubricated with anti-seize compound before torquing.

Rotor Drum Retention

1

Rotor/Drum Retaining Bolts

M8 x 1.25
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
These bolts secure the brake rotor or drum to the wheel hub. Use caution and do not over tighten.

Caliper Components

1

Brake Pad Guide Pin Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Secures the caliper guide pins. Important for smooth caliper sliding during brake operation. Apply a thin coat of silicone paste to the guide pins before installing them.
2

Brake Pad Wear Sensor Screw/Bolt

M4 x 0.7
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Retains the brake pad wear sensor. Use caution as these are small and easily over-tightened.

Hydraulic Connections

1

Brake Line Banjo Bolts

M10 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Connects brake lines to the calipers or master cylinder. Use new sealing washers and ensure proper seating. Do not over-tighten.

Drivetrain

Torque specifications for Drivetrain

Engine Flywheel

1

Flywheel Bolts

M12 x 1.5
Torque Specification
90 ft-lbs (122 N·m)
Important Notes
Tighten in a star pattern to ensure even clamping force.
2

Clutch Pressure Plate Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Tighten in a star pattern to ensure even clamping force. This value is an estimate.

Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure proper alignment before final torque.
2

Transmission Bell Housing Bolts to Engine

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure proper alignment before final torque. This value is an estimate.
3

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Tighten in a criss-cross pattern to ensure even sealing.
4

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Use new sealing washers. Do not over tighten to avoid damaging transmission case.

Driveshaft Axles

1

Drive Axle/Half Shaft Bolts

M10 x 1.5
Torque Specification
100 ft-lbs (136 N·m)
Important Notes
Use new bolts if specified by manufacturer. Ensure proper seating.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
200 ft-lbs (271 N·m)
Important Notes
Use new nut, typically a one-time use item. Always check for proper torque.
3

Propeller/Drive Shaft Bolts

M10 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Tighten in a star pattern. Use new bolts if specified.
4

Driveshaft Center Support Bearing Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper alignment of the bearing support. This value is an estimate.
5

Output Shaft Flange Bolts

M10 x 1.5
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Tighten in a star pattern. This value is an estimate.

Differential Transfercase

1

Differential Mounting Bolts

M14 x 2.0
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Ensure proper alignment before tightening. This value is an estimate.
2

Differential Drain/Fill Plug

M18 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Use a new sealing washer. Do not over tighten.
3

Transfer Case Drain/Fill Plug

M18 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Use a new sealing washer. Do not over tighten.

Electrical

Torque specifications for Electrical

Ignition System

1

Ignition Coil Mounting Bolt

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Ensure coil is properly seated before tightening. Over-torquing can damage the coil or mounting point.

Starting Charging System

1

Starter Motor Mounting Bolt

M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Ensure starter is properly aligned with the flywheel/flexplate before tightening. Check for proper engagement after installation.
2

Alternator Mounting Bolt

M8 x 1.25
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Ensure proper alignment and belt tension. Over-tightening can damage the alternator or mounting bracket.
3

Battery Terminal Nut

M8 x 1.25
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Tighten by hand until snug. Do not over-tighten, or the terminal can fracture. Estimated value.

Engine Management

1

Engine Control Unit (ECU) / Powertrain Control Module (PCM) Mounting Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Handle ECU/PCM with care. Over-tightening can damage the control module. Estimated value.
2

Crankshaft Position Sensor Mounting Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure sensor is properly aligned. Over-tightening can damage the sensor. Estimated value.
3

Camshaft Position Sensor Mounting Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure sensor is properly aligned. Over-tightening can damage the sensor. Estimated value.
4

Oxygen Sensor Mounting Bolt (if applicable)

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure sensor is properly seated. Over-tightening can damage the sensor. Estimated value.

Chassis Electrical

1

Wiring Harness Connector Bracket Mounting Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure bracket is properly positioned before tightening. Over-tightening can damage the bracket or surrounding plastics. Estimated value.
2

Ground Strap Bolt

M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Ensure connection surfaces are clean and free of corrosion. Proper ground connections are critical for electrical system performance.
3

Fuse Box / Relay Box Mounting Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure box is properly positioned. Over-tightening can crack the plastic housing. Estimated value.
4

Headlight Housing Mounting Bolt

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Ensure proper alignment before tightening. Over-tightening can crack the plastic housing. Estimated value.
5

Taillight Housing Mounting Bolt

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Ensure proper alignment before tightening. Over-tightening can crack the plastic housing. Estimated value.

Anti Lock Braking System

1

ABS Sensor Mounting Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure sensor is properly seated. Over-tightening can damage the sensor. Estimated value.

Emissions Sensors

Torque specifications for Emissions_sensors

Exhaust System

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure proper torque sequence to evenly distribute clamping force.
2

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
These bolts are used to connect the manifold sections, or the manifold to the head.
3

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Ensure proper alignment of the exhaust pipe.
4

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Ensure proper gasket is used and properly aligned
5

Oxygen Sensor Mounting

M18 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Applies to pre-cat and post-cat sensors. Avoid overtightening to prevent damage to sensor or exhaust threads.

Intake System

1

MAF (Mass Air Flow) Sensor Bolts

M5 x 0.8
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not overtighten; the sensor housing is typically made of plastic.
2

MAP (Manifold Absolute Pressure) Sensor Bolts

M5 x 0.8
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not overtighten; sensor housing is typically made of plastic.

Egr System

1

EGR Valve Bolts

M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Ensure proper gasket is used for sealing

Evaporative Emissions System

1

Evaporative Emissions Canister Mounting Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Ensure mounting brackets are correctly aligned.
2

Purge Valve Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Ensure valve is properly seated to prevent leaks

Exhaust

Torque specifications for Exhaust

Exhaust Manifold

1

Exhaust Manifold to Cylinder Head Bolts

M8 x 1.25
Torque Specification
1. 15 ft-lbs (20 N·m) 2. 20 ft-lbs (27 N·m)
Important Notes
Apply anti-seize to bolt threads. Torque in a star pattern. Second torque value may be applied after engine has reached operating temperature.
2

Exhaust Pipe to Exhaust Manifold/Header Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Ensure proper alignment of flanges and gaskets. Apply anti-seize to bolt threads.

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Use new gaskets. Ensure correct alignment of flanges. Apply anti-seize to bolt threads.

Muffler

1

Muffler to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Use new gaskets if required. Check and align muffler for proper fitment. Apply anti-seize to bolt threads.

Clamps

1

Exhaust System Band Clamps

M8 x 1.25
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Torque specifications may vary. Consult clamp manufacturer for exact specifications. This is an estimated value.
2

Exhaust System U-Bolt Clamps

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Torque specifications may vary. Ensure equal tightening of nuts. This is an estimated value.

Sensors

1

Oxygen Sensor

M18 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Apply anti-seize compound to sensor threads. Do not over-tighten.

Hangers

1

Exhaust Hanger Bolts/Nuts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Do not over-tighten to prevent damage to rubber mounts. This is an estimated value.

Heat Shields

1

Heat Shield Bolts/Nuts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Do not over-tighten. These are smaller bolts that require less torque. This is an estimated value.

Fuel

Torque specifications for Fuel

Fuel Rail

1

Fuel Rail Mounting Bolts

M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Ensure bolts are tightened evenly to prevent leaks.
2

Fuel Injector Mounting Bolts/Nuts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Some injectors may use studs and nuts. Tighten evenly to avoid injector damage.
3

Fuel Pressure Regulator Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Tighten these bolts to ensure a proper seal and prevent leaks.

Fuel Delivery

1

Fuel Pump Mounting Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Tighten bolts evenly to secure the pump and avoid leaks.
2

Fuel Filter Mounting Bolt/Nut

M8 x 1.25
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Ensure the fuel filter bracket is securely mounted to prevent movement and leaks.
3

Fuel Line Fittings (Banjo Bolts/Connector Bolts)

M12 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value. Verify exact spec in manufacturer's service manual. Over-tightening can damage sealing surfaces.

Fuel Tank

1

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Tighten bolts evenly to prevent leaks and vapor loss.
2

Fuel Tank Sending Unit Retaining Bolts/Ring

M5 x 0.8
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Estimated value. Use a low torque setting due to small bolt size. If a retaining ring is used, follow manufacturer specific instructions.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Tighten bolts in a cross pattern to ensure even pressure distribution. Consult the vehicle-specific service manual for the exact sequence.

Ac Lines

1

A/C Line Fittings

Varies, typically M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Do not over-tighten; ensure proper alignment before tightening. Always use a backup wrench on the fitting to avoid twisting the lines.

Ac Condenser

1

Condenser Mounting Bolts

M6 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Ensure proper alignment before tightening to avoid damaging the condenser core. Estimated value based on similar mounting applications.

Ac Evaporator

1

Evaporator Core Mounting Bolts/Screws

M5 x 0.8
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Do not over-tighten as the core or housing can be easily damaged. Estimated value based on similar mounting applications.

Hvac Blower Motor

1

HVAC Blower Motor Mounting Bolts/Screws

M5 x 0.8
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Ensure the blower motor is seated correctly before tightening. Estimated value based on similar mounting applications.

Hvac Control Module

1

HVAC Control Module Mounting Bolts/Screws

M4 x 0.7
Torque Specification
4 ft-lbs (5.5 N·m)
Important Notes
Do not over-tighten to avoid damaging the module or mounting points. Estimated value based on similar module mountings.

Ac Expansion Valve

1

Expansion Valve Mounting Bolts/Screws

M5 x 0.8
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Ensure proper alignment before tightening to avoid leaks. Estimated value based on similar valve mountings.

Ambient Air Temp Sensor

1

Ambient Air Temperature Sensor Mounting Screw

M3 x 0.5
Torque Specification
1.5 ft-lbs (2 N·m)
Important Notes
Tighten by hand until snug. Do not over-tighten as it may damage the sensor. Estimated value based on typical sensor mounting.

Blend Door Actuator

1

Blend Door Actuator Mounting Screws

M4 x 0.7
Torque Specification
4 ft-lbs (5.5 N·m)
Important Notes
Do not over-tighten to avoid damage to the actuator or mounting point. Estimated value based on similar actuator mountings.

Mode Door Actuator

1

Mode Door Actuator Mounting Screws

M4 x 0.7
Torque Specification
4 ft-lbs (5.5 N·m)
Important Notes
Do not over-tighten to avoid damage to the actuator or mounting point. Estimated value based on similar actuator mountings.

Suspension

Torque specifications for Suspension

Front Suspension

1

Front Strut/Shock Absorber Upper Mounting Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
These bolts secure the strut to the strut tower. Ensure all bolts are tightened evenly.
2

Front Strut Pinch Bolt (Lower)

M14 x 1.5
Torque Specification
1. 60 ft-lbs (81 N·m) 2. 90°
Important Notes
This bolt clamps the steering knuckle to the lower portion of the front strut. Ensure the strut is properly seated in the knuckle before tightening. Angle tightening is crucial.
3

Lower Control Arm to Subframe Bolt

M14 x 2.0
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Secures the lower control arm to the subframe. Tighten with the vehicle at ride height to ensure proper suspension alignment.
4

Upper Control Arm to Knuckle Bolt

M12 x 1.75
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Connects the upper control arm to the steering knuckle. Ensure the ball joint is properly seated before tightening.
5

Ball Joint Nut

M12 x 1.5
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Secures the ball joint to the control arm. Use a new nut if recommended by the manufacturer.
6

Tie Rod End Nut

M12 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Secures the tie rod end to the steering knuckle. Ensure the tie rod end is properly aligned before tightening.
7

Sway Bar Link Nut

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Secures the sway bar end link to the strut or control arm. Ensure the sway bar end link is correctly positioned before tightening.

Rear Suspension

1

Rear Shock Absorber Lower Mounting Bolt

M12 x 1.75
Torque Specification
75 ft-lbs (102 N·m)
Important Notes
Secures the lower part of the rear shock absorber to the suspension arm, knuckle, or chassis. Tighten with the suspension at ride height.
2

Lower Control Arm to Knuckle Bolt

M14 x 2.0
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Secures the lower control arm to the knuckle. Tighten with the vehicle at ride height to ensure proper suspension alignment.
3

Upper Control Arm to Knuckle Bolt

M12 x 1.75
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Connects the upper control arm to the steering knuckle. Ensure the ball joint is properly seated before tightening.
4

Sway Bar Link Nut

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Secures the sway bar end link to the rear control arm or shock absorber. Ensure the sway bar end link is correctly positioned before tightening.

Subframe

1

Subframe Mounting Bolts

M14 x 2.0
Torque Specification
90 ft-lbs (122 N·m)
Important Notes
Attach the subframe to the vehicle's chassis. Tighten to specified torque in a criss-cross pattern to ensure even clamping.
2

Sway Bar Bushing Bracket Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Secure the sway bar bushing brackets to the subframe. Ensure the bushing is correctly positioned.

Sensors

1

Wheel Speed Sensor Mounting Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Mounts the wheel speed sensors to the steering knuckle. Ensure sensor is properly aligned and not touching the tone ring.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

Common Issues

Bolt stretching, stripped threads, uneven torque patterns

Loose Components

Symptoms:
  • Rattling or vibration noises
  • Visible movement in components
  • Uneven panel gaps
Solutions:
  • Clean threads and mounting surfaces
  • Replace damaged fasteners
  • Apply proper torque in sequence
  • Use thread locker if specified

Stripped Fasteners

Symptoms:
  • Unable to achieve proper torque
  • Fastener spins freely
  • Visible thread damage
Solutions:
  • Use thread repair kit if appropriate
  • Install thread insert (HeliCoil)
  • Replace component if threaded hole is damaged
  • Upgrade to higher grade fastener if recommended

Overtightened Components

Symptoms:
  • Cracked or deformed parts
  • Broken fasteners
  • Compressed gaskets or seals
Solutions:
  • Replace damaged components
  • Use new fasteners
  • Follow proper torque sequence
  • Verify correct torque specifications

Diagnostic Steps

Visual inspection, torque verification, thread assessment

1

Visual Inspection

Inspect the affected area for any visible signs of damage or wear

  • Check for cracks or deformation
  • Look for signs of excessive wear
  • Verify proper fastener installation
2

Torque Verification

Verify the torque applied to the fasteners

  • Check the torque wrench calibration
  • Verify the torque specification
  • Compare the applied torque to the specification
3

Thread Assessment

Assess the condition of the threads

  • Check for signs of thread damage
  • Verify the thread type and size
  • Check for proper thread engagement

Prevention Guidelines

Best practices, maintenance tips, tool care

Best Practices

  • Always follow the recommended torque specification
  • Use the correct type and size of fasteners
  • Verify the torque wrench calibration regularly

Maintenance Tips

  • Regularly inspect the affected area for signs of wear or damage
  • Replace damaged or worn-out components promptly
  • Keep the work area clean and organized

Tool Care

  • Regularly clean and maintain the torque wrench
  • Store the torque wrench in a dry and secure location
  • Verify the torque wrench calibration before each use

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What essential tools do I need for accurate torque measurement on my 2018-Present BMW M5?

To ensure precise torque application, you will require a high-quality torque wrench. BMW recommends using a click-type torque wrench calibrated specifically for automotive applications within the specified torque range relevant to your M5 model.

Q2

How can I ensure the accuracy of my torque wrench before use?

Prior to torque application, it IS crucial to verify the accuracy of your torque wrench. This can be done by having the wrench calibrated and certified by a reputable calibration laboratory. Regular calibration ensures the wrench meets industry standards and provides reliable torque readings.

Q3

Why IS it essential to follow the BMW-specified torque values for my M5?

Adhering to BMW's prescribed torque specifications IS vital for maintaining the integrity of various components and systems in your M5. Incorrect torque values can lead to bolt failure, component damage, and compromise the overall safety and performance of your vehicle.

Q4

Are there any specific torque patterns or sequences that need to be followed when tightening bolts on my M5?

Yes, specific torque patterns and sequences are often recommended by BMW for various components on your M5. These patterns ensure even distribution of force and prevent distortion or damage to the components. Refer to your vehicle's service manual or consult with a certified BMW technician for the proper torque sequence specific to your M5 model and the task you are performing.

Q5

What are the potential consequences of over-tightening or under-tightening bolts on my BMW M5?

Both over-tightening and under-tightening bolts can have detrimental effects on your M5. Over-tightening can cause bolt stretching or breakage, leading to component failure or safety concerns. Under-tightening, on the other hand, can result in loose bolts, compromised connections, and potential damage to the surrounding components due to excessive movement.

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

Temperature Effects

Includes: High Heat, Cold Weather, Thermal Cycling

Temperature can significantly impact torque values and fastener behavior

Cold Weather

Effects:
  • Increased material brittleness
  • Higher torque required due to thread contraction
  • Reduced thread lubricant effectiveness
Recommendations:
  • Allow components to warm to room temperature when possible
  • Consider using winter-grade thread lubricants
  • Check torque values more frequently during winter months

Hot Weather

Effects:
  • Thermal expansion of components
  • Decreased friction in threads
  • Accelerated lubricant breakdown
Recommendations:
  • Check torque when components are at normal operating temperature
  • Use temperature-resistant thread lockers
  • Consider re-torquing after heat cycles

Humidity and Corrosion

Covers: Rust Prevention, Salt Exposure, Moisture Control

Moisture and corrosion can affect fastener integrity and torque values

High Humidity

Effects:
  • Accelerated corrosion formation
  • Reduced friction coefficient
  • Potential thread seizing
Prevention:
  • Use corrosion-resistant fasteners
  • Apply appropriate anti-seize compounds
  • Maintain proper protective coatings

Salt Exposure

Effects:
  • Rapid corrosion development
  • Thread damage
  • Seized fasteners
Prevention:
  • Regular underbody washing
  • Use of sacrificial anodes where appropriate
  • Application of protective coatings

Seasonal Maintenance

Spring, Summer, Fall, and Winter maintenance schedules

Spring

  • Inspect for winter damage
  • Clean and protect exposed fasteners
  • Check torque on critical components

Summer

  • Monitor heat-affected components
  • Check expansion-related loosening
  • Inspect cooling system mounts

Fall

  • Prepare for winter conditions
  • Apply corrosion protection
  • Verify all fasteners are properly torqued

Winter

  • More frequent inspection of critical fasteners
  • Check for salt damage
  • Monitor suspension component torque

Related Resources

Tools, service procedures, and technical bulletins

Recommended Tools

Digital Torque Wrench (10-100 Nm)

Essential for tightening fasteners to precise torque specifications, preventing damage and ensuring proper assembly. This range IS suitable for many applications on the M5.

  • Digital display for accurate readings
  • Audible alarm when target torque IS reached
  • Multiple units (Nm, ft-lb, in-lb)
  • Reversible ratcheting mechanism
Learn more
Service Procedures

Engine Bolt Torque Specifications

Tightening torques for various engine components on the M5.

  • Cylinder head bolts: 50 Nm + 90 degrees + 90 degrees
  • Intake manifold bolts: 10 Nm + 90 degrees
  • Exhaust manifold bolts: 15 Nm + 90 degrees
  • Oil pan bolts: 13 Nm
  • Valve cover bolts: 10 Nm
View full procedure

Suspension Bolt Torque Specifications

Tightening torques for suspension components on the M5.

  • Upper control arm bolts: 115 Nm
  • Lower control arm bolts: 150 Nm
  • Tie rod end nuts: 50 Nm + 90 degrees
  • Ball joint nuts: 50 Nm + 90 degrees
  • Strut bolts: 100 Nm
View full procedure

Brake Bolt Torque Specifications

Tightening torques for brake components on the M5.

  • Brake caliper bolts: 110 Nm
  • Brake rotor bolts: 130 Nm
  • Brake line fittings: 20 Nm
  • ABS sensor bolts: 10 Nm
View full procedure
Technical Service Bulletins

Technical Service Bulletin: Incorrect Engine Bolt Torque Specifications

2023-03-01

BMW has issued a technical service bulletin regarding incorrect engine bolt torque specifications in certain model years of the M5. This bulletin provides updated torque specifications to ensure proper assembly and prevent engine damage.

2018-2020 M5

Resolution: Inspect engine bolts and retorque to the updated specifications: 50 Nm + 90 degrees + 90 degrees for cylinder head bolts, 10 Nm + 90 degrees for intake manifold bolts, 15 Nm + 90 degrees for exhaust manifold bolts, 13 Nm for oil pan bolts, and 10 Nm for valve cover bolts.

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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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