BMW Vehicle Models 335i 2005-2011 Torque Specifications
BMW Vehicle Models 335i 2005-2011

BMW Vehicle Models 335i 2005-2011 Torque Specifications

Complete BMW Vehicle Models 335i 2005-2011 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

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3.0l Engine

Torque specifications for 3.0L Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 16 ft-lbs (22 N·m) 2. 90° 3. 90°
Important Notes
Multi-stage torque procedure involving torque and angle tightening. Final angles are estimated, verify for specific vehicle.
2

Camshaft Bearing Cap Bolts

M6 x 1.0
Torque Specification
1. 7 ft-lbs (9 N·m) 2. 45°
Important Notes
Estimated angle value. Tighten evenly, and verify with service manual.
3

Rocker Arms/Shafts Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure proper rocker arm alignment during installation.
4

VANOS Solenoid Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Proper torque prevents leaks and ensures reliable VANOS operation.
5

VANOS Unit Mounting Bolts

M8 x 1.25
Torque Specification
1. 7 ft-lbs (9 N·m) 2. 45°
Important Notes
Estimated angle value. Tighten evenly and verify with service manual.
6

Spark Plugs

M14 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Use a spark plug socket to avoid damage. Proper torque is crucial for heat transfer.
7

Ignition Coil Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure proper coil seating during installation.

Crankshaft And Connecting Rods

1

Main Bearing Bolts

M10 x 1.5
Torque Specification
1. 55 ft-lbs (75 N·m) 2. 90°
Important Notes
Multi-stage torque procedure. Angle step estimated, verify with service manual.
2

Connecting Rod Nuts

M9 x 1.25
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Ensure proper bearing cap orientation during installation. Use new nuts if possible.
3

Flywheel Bolts

M12 x 1.5
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Use new bolts and ensure proper alignment before tightening. Use a flywheel locking tool when torquing
4

Crankshaft Pulley/Harmonic Balancer Bolt

M16 x 1.5
Torque Specification
1. 81 ft-lbs (110 N·m) 2. 90°
Important Notes
This bolt is typically torque-to-yield. Always use a new bolt.

Engine Block External

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure proper oil pan gasket alignment during installation.
2

Water Pump Bolts

M6 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Ensure proper water pump gasket alignment during installation.
3

Water Pump Pulley Bolts

M6 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Ensure proper pulley alignment during installation.
4

Oil Filter Housing Bolt

M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper oil filter housing gasket alignment during installation.
5

Oil Drain Plug Bolt

M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Always use a new crush washer on the oil drain plug.
6

Starter Motor Mounting Bolts

M10 x 1.5
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Ensure proper starter alignment during installation.
7

Alternator Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper alternator alignment during installation.
8

A/C Compressor Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper compressor alignment during installation.
9

Power Steering Pump Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper alignment during installation.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper tensioner alignment during installation. Do not overtighten.
2

Camshaft Sprocket Bolt

M10 x 1.5
Torque Specification
63 ft-lbs (85 N·m)
Important Notes
Ensure proper sprocket alignment during installation. Use proper timing tools to hold timing.

Intake And Exhaust

1

Throttle Body Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure proper throttle body alignment during installation.
2

Intake Manifold Bolts

M7 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Torque in specified sequence from center outwards to ensure even seal.
3

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Torque in a sequence from center outwards to ensure an even seal. Use new gaskets.
4

EGR Valve Bolts

M6 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Ensure proper EGR valve gasket alignment during installation.
5

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Use new gaskets and ensure proper alignment during installation.

Fuel System

1

Fuel Rail Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Ensure proper fuel rail alignment during installation.
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure proper injector alignment during installation.

Cooling System

1

Thermostat Housing Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Ensure proper thermostat housing gasket alignment during installation.

Accessory Drive

1

Serpentine/Accessory Drive Belt Tensioner Bolt

M10 x 1.5
Torque Specification
41 ft-lbs (55 N·m)
Important Notes
Ensure proper tensioner alignment and function during installation.
2

Drive Belt Idler Pulley Bolt

M10 x 1.5
Torque Specification
41 ft-lbs (55 N·m)
Important Notes
Ensure proper idler pulley alignment during installation.

6hp Transmission

Torque specifications for 6hp Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Ensure proper alignment before torquing. These bolts are critical for transmission stability.

Transmission Oil Pan

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Use a new gasket or sealant. Tighten in a criss-cross pattern to prevent leaks. Do not over tighten these bolts.

Transmission Plugs

1

Transmission Drain Plug

M18 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Use a new crush washer or o-ring. Ensure plug is fully seated before torquing.
2

Transmission Fill Plug

M18 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Use a new crush washer or o-ring. Ensure plug is fully seated before torquing.
3

Transmission Side Fill Plug

M12 x 1.5
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Use a new crush washer or o-ring. Ensure plug is fully seated before torquing.

Mechatronic Unit

1

Mechatronic Unit Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
These are delicate and are critical for proper sealing and function. Tighten in a criss-cross pattern. Do not over tighten these bolts.

Valve Body

1

Valve Body Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
These bolts are delicate. Tighten in a criss-cross pattern to ensure even clamping force. Do not over tighten these bolts.

Adapter Plate

1

Transmission Adapter Plate Bolts (Engine Side)

M12 x 1.75
Torque Specification
1. 25 ft-lbs (34 N·m) 2. 90°
Important Notes
Use a torque angle gauge for the final step. These bolts ensure proper alignment between the engine and transmission.

Torque Converter

1

Torque Converter Bolts (Flywheel/Flexplate Side)

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Access these bolts through the starter window. Ensure proper seating and use threadlocker. Do not over tighten these bolts.

Oil Cooler Lines

1

Transmission Oil Cooler Line Fittings

M14 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Use new crush washers or o-rings for the fittings and banjo bolts. Ensure proper alignment of the lines to prevent leaks.

Output Shaft

1

Transmission Output Shaft Flange Bolt

M14 x 1.5
Torque Specification
81 ft-lbs (110 N·m)
Important Notes
This bolt is critical for transferring power out of the transmission. Use threadlocker. Do not over tighten these bolts.

Transmission Pan Filter

1

Transmission Pan Filter Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
These bolts are delicate. Tighten in a criss-cross pattern to ensure even clamping force. Do not over tighten these bolts.

Body

Torque specifications for Body

Wheel System

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
88 ft-lbs (120 N·m)
Important Notes
Tighten lug nuts in a star pattern. Ensure proper seating against the wheel hub. Re-torque after 50-100 miles of driving.

Fuel System

1

Fuel Tank Strap Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure fuel tank is correctly positioned before tightening. Apply even torque to prevent strap deformation.
2

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure proper alignment of the filler neck before tightening to prevent leaks.

Electrical System

1

Battery Terminal Nuts

M6 x 1.0
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Do not overtighten. Ensure a clean, corrosion-free connection. Use dielectric grease to prevent corrosion.

Body Panels

1

Door Hinge Bolts (Body Side)

M8 x 1.25
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Estimated value. Ensure proper door alignment when tightening. Multiple adjustments may be required.
2

Fender Bolts (to Body/Chassis)

M6 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value. Ensure proper panel alignment when tightening. Use multiple passes for even clamping.
3

Hood Hinge Bolts (Body Side)

M6 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value. Ensure proper hood alignment before tightening. Multiple adjustments may be necessary.
4

Bumper Cover Bolts/Retainers

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value. Check for proper fit. Do not over tighten plastic components.
5

Headlight Mounting Bolts

M5 x 0.8
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value. Do not over-tighten plastic housings. Ensure proper alignment.
6

Taillight Mounting Bolts

M5 x 0.8
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value. Do not over-tighten plastic housings. Ensure proper alignment.
7

Side Mirror Mounting Bolts (To Door Panel)

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value. Ensure proper mirror alignment before tightening. Do not over tighten the bolts.

Brakes

Torque specifications for Brakes

Caliper Mounting

1

Brake Caliper Bolts

M12 x 1.5
Torque Specification
81 ft-lbs (110 N·m)
Important Notes
Secures the brake caliper directly to the caliper mounting bracket.
2

Brake Caliper Mounting Bracket Bolts

M14 x 1.5
Torque Specification
89 ft-lbs (120 N·m)
Important Notes
Attaches the caliper mounting bracket to the wheel hub or suspension upright.

Rotor And Wheel

1

Brake Disc/Drum Retaining Bolts

M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Secures the brake rotor to the wheel hub. Often a small set screw, this torque is estimated.
2

Wheel Lug Nuts

M12 x 1.5
Torque Specification
88 ft-lbs (120 N·m)
Important Notes
Secures the wheel to the hub, clamping the rotor in place.

Brake Pads

1

Brake Pad Retaining Pin/Bolt

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Secures brake pads within the caliper. This value is an estimate.

Brake Lines

1

Brake Line to Caliper Banjo Bolt

M10 x 1.0
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Connects the hydraulic brake line to the caliper.
2

Brake Line to Hardline Fitting

M10 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Connects the brake line to a hard line fitting. This value is estimated.

Bleeder Screws

1

Brake Caliper Bleeder Screw

M7 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Used for bleeding the brakes. Do not over tighten this screw.

Drivetrain

Torque specifications for Drivetrain

Engine Flywheel

1

Flywheel Bolts

M12 x 1.5
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Use new bolts. Apply a light coat of engine oil to the threads before installation.

Clutch

1

Clutch Pressure Plate Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Tighten bolts in a star pattern to ensure even pressure.
2

Clutch Slave Cylinder Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper alignment of the slave cylinder before tightening.

Transmission

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Ensure proper alignment before tightening.
2

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten bolts in a cross pattern to ensure even sealing. Use a new gasket.
3

Transmission Drain and Fill Plugs

M22 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Use new crush washers. Do not over-tighten.
4

Transmission Output Shaft Flange Bolts

M10 x 1.5
Torque Specification
66 ft-lbs (90 N·m)
Important Notes
These bolts secure the driveshaft or axle to the transmission output flange.

Driveshaft

1

Propeller/Drive Shaft Bolts

M10 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Ensure proper alignment of the driveshaft flanges before tightening.
2

Driveshaft Center Support Bearing Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the bearing is properly aligned and supported before tightening.

Drive Axles

1

Drive Axle/Half Shaft Bolts

M10 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
Typically at the inner CV joint flange. Use new bolts if specified.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
180 ft-lbs (244 N·m)
Important Notes
This nut secures the outer CV joint to the wheel hub. Use a new nut. Check for proper wheel bearing preload.

Differential

1

Differential Mounting Bolts to Chassis/Subframe

M12 x 1.75
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Ensure the differential is properly aligned before tightening.
2

Differential Drain/Fill Plug

M18 x 1.5
Torque Specification
53 ft-lbs (72 N·m)
Important Notes
Use new crush washers. Do not over-tighten.

Transfer Case

1

Transfer Case Drain/Fill Plug

M18 x 1.5
Torque Specification
53 ft-lbs (72 N·m)
Important Notes
Use new crush washers. Do not over-tighten.

Electrical

Torque specifications for Electrical

Ignition System

1

Ignition Coil Mounting Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the coil is seated properly before tightening. Avoid over-tightening on plastic components.

Starting System

1

Starter Motor Mounting Bolt

M12 x 1.75
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Ensure the starter is correctly aligned with the flywheel before tightening.

Charging System

1

Alternator Mounting Bolt

M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the alternator is properly aligned and seated on the bracket. Some alternators have multiple bolts of varying sizes, torque each to spec.

Battery System

1

Battery Terminal Nut

M8 x 1.25
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Do not overtighten, or the battery terminal can be damaged. Clean terminals and mating surfaces before installation.

Engine Management

1

ECU Mounting Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the ECU is seated properly and not putting undue strain on the harness connectors. This value is estimated, consult service manual for your model.
2

Crankshaft/Camshaft Position Sensor Mounting Bolt

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Tighten gently. These sensors usually have a plastic housing. This is an estimated value, consult the service manual for your specific model.

Grounding System

1

Engine to Chassis Ground Strap Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure clean contact surfaces between the ground strap and mounting points.
2

Chassis to Body Ground Strap Bolt

M6 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Ensure clean contact surfaces between the ground strap and mounting points. Check mating surfaces for damage and corrosion.
3

Wiring Harness Ground Connection Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Ensure the wiring harness ring terminal is making good contact with the body or chassis.

Power Distribution

1

Fuse Box/Relay Box Mounting Bolt

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Ensure the box is properly aligned and seated. This is an estimated value, consult the service manual for your specific model.

Emissions Sensors

Torque specifications for Emissions_sensors

Exhaust System

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure mating surfaces are clean. Tighten bolts in a criss-cross pattern for even pressure.
2

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
These bolts secure the exhaust manifold halves together or to mounting brackets. Tighten evenly to avoid leaks. This value may need to be adjusted based on aftermarket header type.
3

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Use new gaskets if available. Tighten evenly to ensure a proper seal. It is possible these are flange bolts rather than threaded.
4

Upstream Oxygen (O2) Sensor

M18 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Apply anti-seize compound to sensor threads. Do not over-tighten. Use an O2 sensor socket to avoid damaging the sensor.
5

Downstream Oxygen (O2) Sensor

M18 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Apply anti-seize compound to sensor threads. Do not over-tighten. Use an O2 sensor socket to avoid damaging the sensor.

Intake System

1

Throttle Body Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten bolts evenly to prevent warping. Do not over-tighten.
2

Intake Manifold Bolts

M8 x 1.25
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Tighten bolts in a criss-cross pattern. Ensure all gaskets are properly seated and in good condition.
3

Mass Air Flow (MAF) Sensor Bolts

M5 x 0.8
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
These bolts are typically small and attach to the intake tract. Do not overtighten; the housing can be easily damaged. This value is estimated.
4

Manifold Absolute Pressure (MAP) Sensor Bolt

M5 x 0.8
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Tighten the MAP sensor bolt carefully. Do not over-tighten. This value is estimated.
5

Intake Air Temperature (IAT) Sensor

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Do not over-tighten; the sensor body is usually plastic and easily damaged. This value is estimated.

Egr System

1

EGR Valve Bolts

M8 x 1.25
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Tighten bolts evenly to ensure the valve seats correctly. Check for any leaks after installation.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold

1

Exhaust Manifold to Cylinder Head Bolt

M8 x 1.25
Torque Specification
1. 10 ft-lbs (14 N·m) 2. 18 ft-lbs (24 N·m)
Important Notes
Torque bolts in a criss-cross pattern to ensure even clamping pressure. Some sources list a two-stage torque process. Apply anti-seize to bolt threads.
2

Exhaust Manifold to Cylinder Head Bolt (Alternate Location)

M8 x 1.25
Torque Specification
1. 8 ft-lbs (11 N·m) 2. 16 ft-lbs (22 N·m)
Important Notes
Some sources show a slightly different torque spec for bolts in certain locations on the exhaust manifold. Torque in a criss-cross pattern. Apply anti-seize to bolt threads.

Exhaust Downpipe

1

Downpipe to Exhaust Manifold/Header Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper alignment of the flange and use new gasket. Apply anti-seize to bolt threads. Torque evenly to avoid leaks.

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Use new gasket between the catalytic converter and the exhaust pipe. Apply anti-seize to bolt threads. Ensure even clamping pressure.

Muffler

1

Muffler to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Use new gasket and ensure proper alignment. Apply anti-seize to bolt threads. Torque evenly.

Exhaust Clamps

1

Exhaust Flange Clamp Bolts/Nuts

M8 x 1.25
Torque Specification
19 ft-lbs (26 N·m)
Important Notes
Torque values vary depending on clamp size and manufacturer. Use a torque value in the middle of the typical range. Do not overtighten. Estimated value.
2

Exhaust Band Clamp Bolt

M10 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Torque values vary based on clamp size and material. Start at the lower range of the specification and increase if necessary. Do not overtighten. Estimated value.

Exhaust Accessories

1

Oxygen Sensor

M18 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Torque can vary based on sensor size. Always check the sensor specifications. Use anti-seize compound on the threads.
2

Exhaust Hanger Bracket Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the exhaust system is properly aligned before tightening. Apply anti-seize to bolt threads. Use a new bolt or nut if needed.

Fuel

Torque specifications for Fuel

Fuel Rail

1

Fuel Rail Mounting Bolts

M8 x 1.25
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Secures the fuel rail to the intake manifold or cylinder head. Ensure proper thread engagement.
2

Fuel Injector Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Secures the fuel injectors to the fuel rail or intake manifold. Proper torque is crucial to prevent leaks and ensure proper sealing. Note that some designs may use clips instead of bolts
3

Fuel Pressure Sensor Mounting Bolts

M5 x 0.8
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Secures the fuel pressure sensor to the fuel rail. Do not overtighten as this could damage the sensor.

Fuel Pump

1

Fuel Pump Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Secures the fuel pump assembly to the fuel tank. Ensure the fuel pump is properly seated before tightening.
2

Fuel Pump Access Cover Bolts/Screws

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Secures the access panel to the fuel pump. Do not overtighten to avoid cracking the plastic cover.
3

Fuel Tank Strap Bolts

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Secures the fuel tank straps to the vehicle's undercarriage. Proper torque is crucial for tank safety.

Fuel Lines

1

Fuel Line Banjo Bolt (M12)

M12 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tightens the banjo fitting to the fuel line. Use a line wrench to avoid rounding the bolt head. Estimated value, consult specific parts documentation for exact values.
2

Fuel Line Banjo Bolt (M14)

M14 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Tightens the banjo fitting to the fuel line. Use a line wrench to avoid rounding the bolt head. Estimated value, consult specific parts documentation for exact values.

Fuel Filler And Evap

1

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Secures the fuel filler neck to the vehicle body. Ensure a proper seal to prevent fuel vapor leaks.
2

Fuel Tank Vent/Purge Valve Mounting Bolts

M5 x 0.8
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Secures the vent/purge valve to the intake manifold or chassis. Do not overtighten to avoid damage to plastic components.

Fuel Filter

1

Fuel Filter Mounting Bolt/Nut

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Secures the fuel filter to its mounting bracket or chassis. Includes any bolts that hold the filter itself or any banjo fittings.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
These bolts secure the A/C compressor to the engine block or mounting bracket. Ensure proper alignment before tightening. Always use new fasteners if specified in the repair manual.
2

A/C Line Fittings

Varies, typically M10 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
These fittings connect the refrigerant lines. Over-torquing can damage fittings and O-rings. Use new O-rings during reassembly. Ensure proper alignment before tightening.

Ac Condenser

1

Condenser Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
These bolts secure the condenser to the vehicle's frame. Estimated value, refer to the specific repair manual for precise torque specification. Ensure proper condenser alignment before tightening.
2

Receiver Drier Mounting Bolts/Clamps

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
These bolts or clamps ensure the receiver drier is securely fastened. Estimated value, confirm with vehicle's service manual.

Ac Evaporator

1

Evaporator Housing Bolts/Screws

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
These fasteners secure the evaporator housing. Estimated value, should be towards lower end to avoid cracking plastic. Confirm with vehicle service manual.
2

Expansion Valve Mounting Bolts

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
These bolts secure the expansion valve to the evaporator. Estimated value, check vehicle service manual.

Hvac Blower Motor

1

HVAC Blower Motor Mounting Screws/Bolts

M5 x 0.8
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
These screws/bolts secure the blower motor to the HVAC housing. Estimated value, confirm with vehicle service manual.

Hvac Controls

1

HVAC Control Module Mounting Screws

M4 x 0.7
Torque Specification
4 ft-lbs (5 N·m)
Important Notes
These screws secure the HVAC control module. Estimated value, confirm with service manual.
2

HVAC Blend Door Actuator Mounting Screws

M4 x 0.7
Torque Specification
4 ft-lbs (5 N·m)
Important Notes
These screws secure the blend door actuators. Estimated value, confirm with service manual.
3

Ambient Air Temperature Sensor Mounting Screw

M3 x 0.5
Torque Specification
1 ft-lbs (1.35 N·m)
Important Notes
Typically hand-tight, but a light torque is required to ensure it doesn't come loose.
4

Interior Air Temperature Sensor Mounting Screw

M3 x 0.5
Torque Specification
1 ft-lbs (1.35 N·m)
Important Notes
Typically hand-tight, but a light torque is required to ensure it doesn't come loose.

Suspension

Torque specifications for Suspension

Front Strut Assembly

1

Strut/Shock Absorber Mounting Bolts (Lower)

M12 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
These bolts secure the lower strut assembly to the steering knuckle or lower control arm. Ensure proper alignment before tightening. Torque spec based on general M12 bolt size, verify with manufacturer specs.
2

Front Strut Top Nut

M14 x 1.5
Torque Specification
1. 48 ft-lbs (65 N·m) 2. 90°
Important Notes
This nut secures the top of the strut assembly to the strut tower. The 90-degree turn is critical for proper clamping force. Replace the nut if it has been previously used. Torque spec based on general M14 bolt size, verify with manufacturer specs.

Front Control Arms

1

Control Arm Mounting Bolts

M14 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
These bolts secure the control arm to the chassis and the steering knuckle or hub carrier. Ensure correct alignment of the control arm before tightening. Torque spec based on general M14 bolt size, verify with manufacturer specs.
2

Ball Joint Nut

M12 x 1.25
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
This nut secures the ball joint to the control arm or steering knuckle. Check the ball joint for proper seating before tightening. Torque spec based on general M12 bolt size, verify with manufacturer specs.

Steering Components

1

Tie Rod End Nut

M12 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
This nut secures the tie rod end to the steering knuckle. Ensure proper alignment and seating before tightening. Torque spec based on general M12 bolt size, verify with manufacturer specs.

Front Sway Bar

1

Sway Bar Link Nut

M10 x 1.25
Torque Specification
41 ft-lbs (55 N·m)
Important Notes
These nuts secure the sway bar links to the sway bar and strut or control arm. Ensure the links are not binding before tightening. Torque spec based on general M10 bolt size, verify with manufacturer specs.
2

Front Stabilizer/Sway Bar Bracket Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
These bolts secure the sway bar mounting brackets to the frame or subframe. Ensure the sway bar is properly aligned within the bushings before tightening. Torque spec based on general M8 bolt size, verify with manufacturer specs.

Rear Suspension

1

Rear Shock Absorber Upper Mounting Bolt

M10 x 1.25
Torque Specification
43 ft-lbs (58 N·m)
Important Notes
This bolt secures the top of the rear shock absorber to the chassis. Ensure proper shock alignment before tightening. Torque spec based on general M10 bolt size, verify with manufacturer specs.
2

Rear Shock Absorber Lower Mounting Bolt

M12 x 1.5
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
This bolt secures the bottom of the rear shock absorber to the control arm or hub carrier. Ensure proper shock alignment before tightening. Torque spec based on general M12 bolt size, verify with manufacturer specs.
3

Rear Subframe Mounting Bolts

M14 x 1.5
Torque Specification
1. 81 ft-lbs (110 N·m) 2. 90°
Important Notes
These large bolts secure the rear subframe to the chassis. The 90-degree turn is critical for proper clamping force. Replace the bolts if they have been previously used. Torque spec based on general M14 bolt size, verify with manufacturer specs.
4

Rear Stabilizer/Sway Bar Bracket Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
These bolts secure the rear sway bar mounting brackets to the frame or subframe. Ensure the sway bar is properly aligned within the bushings before tightening. Torque spec based on general M8 bolt size, verify with manufacturer specs.

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 IS the recommended torque value for the cylinder head bolts on a 2005-2011 BMW 335i?

The cylinder head bolts should be torqued to 120 Nm (89 lb-ft) in three stages: 30 Nm (22 lb-ft), 60 Nm (44 lb-ft), and then the final 120 Nm (89 lb-ft).

Q2

What IS the torque specification for the spark plugs on a 2005-2011 BMW 335i?

The spark plugs should be tightened to a torque of 28 Nm (20 lb-ft) using a torque wrench.

Q3

What type of torque wrench should I use for tightening engine bolts on a 2005-2011 BMW 335i?

A torque wrench with a range of 0-200 Nm (0-150 lb-ft) and an accuracy of +/- 4% IS recommended.

Q4

What are the torque values for the lug nuts on a 2005-2011 BMW 335i?

The lug nuts should be tightened to a torque of 120 Nm (89 lb-ft) using a torque wrench.

Q5

IS it safe to use an impact wrench for tightening suspension bolts on a 2005-2011 BMW 335i?

No, it IS not recommended to use an impact wrench for tightening suspension bolts. Impact wrenches can overtighten the bolts, which can damage the threads or cause the bolts to break.

Q6

What IS the torque value for the crankshaft pulley bolt on a 2005-2011 BMW 335i?

The crankshaft pulley bolt should be torqued to 250 Nm (184 lb-ft) using a torque wrench.

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 335i.

Learn more
Service Procedures
Technical Service Bulletins

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  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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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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