BMW X5 2007-2013 3.0L Engine Bolt Torque Specifications & Fastener Values
BMW X5 2007-2013

BMW X5 2007-2013 3.0L Engine Bolt Torque Specifications

Detailed torque specifications for various bolts on the 3.0L engine in the 2007-2013 BMW X5 (E70) model. Includes cylinder head, main bearing, connecting rod, and other critical fasteners.

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

Cylinder Head

Fasteners for securing the cylinder head to the engine block. Correct torque and sequence are critical for proper sealing and engine performance.

1

Cylinder Head Bolts

M10 x 1.5
Important Notes
Torque to 18 ft-lbs (24 N·m), then tighten an additional 90 degrees, then another 90 degrees. Always use new bolts. Follow specific tightening sequence outlined in service manual.

Crankshaft

Fasteners for securing crankshaft components, including main bearings and the crankshaft pulley. Precise torque is essential for proper engine operation and balancing.

1

Main Bearing Bolts

M12 x 1.75
Important Notes
Torque to 55 ft-lbs (75 N·m), then tighten an additional 70 degrees. Follow the specific tightening sequence in the service manual. Use new bolts if specified by manufacturer.
2

Flywheel Bolts

M10 x 1.25
Torque Value
65 ft-lbs (88 N·m)
Important Notes
Torque to 65 ft-lbs (88 N·m). Apply thread locker to the bolts. Tighten in a star pattern.
3

Crankshaft Pulley/Harmonic Balancer Bolt

M18 x 1.5
Torque Value
85 ft-lbs (115 N·m)
Important Notes
Torque to 85 ft-lbs (115 N·m). Apply thread locker to the bolt. Use a crankshaft holding tool when tightening.

Connecting Rods

Fasteners for connecting rod caps. Proper torque ensures correct bearing clearance and smooth piston movement.

1

Connecting Rod Nuts

M9 x 1.0
Important Notes
Torque to 30 ft-lbs (41 N·m), then tighten an additional 60 degrees. Use new nuts/bolts. Follow sequence specified in the service manual.

Valvetrain

Fasteners for securing valvetrain components, including camshafts, rocker arms and valve covers.

1

Camshaft Sprocket Bolts

M8 x 1.25
Torque Value
35 ft-lbs (47 N·m)
Important Notes
Torque to 35 ft-lbs (47 N·m). Ensure correct alignment of camshaft and sprocket.
2

Camshaft Bearing Cap Bolts

M6 x 1.0
Torque Value
10 ft-lbs (14 N·m)
Important Notes
Torque to 10 ft-lbs (14 N·m). Tighten in the sequence specified in the service manual to prevent distortion.
3

Valve Cover Bolts

M6 x 1.0
Torque Value
10 ft-lbs (14 N·m)
Important Notes
Torque to 10 ft-lbs (14 N·m). Tighten in the sequence specified in the service manual to ensure even gasket compression.
4

Rocker Arms/Shafts Bolts

M8 x 1.25
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Torque to 18 ft-lbs (24 N·m). Tighten in the sequence specified in the service manual.

Timing System

Fasteners related to the timing system, including timing chain tensioner.

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Torque to 15 ft-lbs (20 N·m). Ensure proper timing chain/belt tension before tightening.

Intake System

Fasteners for securing the intake system components, such as the intake manifold and throttle body.

1

Intake Manifold Bolts

M6 x 1.0
Torque Value
14 ft-lbs (19 N·m)
Important Notes
Torque to 14 ft-lbs (19 N·m). Tighten in sequence specified in the service manual to ensure even sealing.
2

Throttle Body Bolts

M6 x 1.0
Torque Value
10 ft-lbs (14 N·m)
Important Notes
Torque to 10 ft-lbs (14 N·m). Ensure throttle body is correctly aligned before tightening.
3

EGR Valve Bolts

M8 x 1.25
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Torque to 15 ft-lbs (20 N·m). Ensure proper alignment of the EGR valve before tightening.

Exhaust System

Fasteners for securing exhaust components to the cylinder head.

1

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Torque to 18 ft-lbs (24 N·m). Tighten bolts in the sequence specified in the service manual.

Fuel System

Fasteners for securing fuel system components such as the fuel rail and injectors.

1

Fuel Rail Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Torque to 9 ft-lbs (12 N·m). Ensure proper fuel rail alignment. Use a torque wrench to avoid overtightening.
2

Fuel Injector Bolts

M6 x 1.0
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Torque to 7 ft-lbs (10 N·m). Do not overtighten, this may damage the injector.

Ignition System

Fasteners for securing the ignition coils and spark plugs.

1

Spark Plugs

M14 x 1.25
Torque Value
23 ft-lbs (31 N·m)
Important Notes
Torque to 23 ft-lbs (31 N·m). Do not overtighten, or damage to the cylinder head can occur.
2

Ignition Coil Bolts

M6 x 1.0
Torque Value
8 ft-lbs (11 N·m)
Important Notes
Torque to 8 ft-lbs (11 N·m). Do not overtighten.

Engine Cooling

Fasteners for securing cooling system components such as the water pump and thermostat housing.

1

Water Pump Bolts

M8 x 1.25
Torque Value
11 ft-lbs (15 N·m)
Important Notes
Torque to 11 ft-lbs (15 N·m). Tighten in sequence specified in the service manual to ensure proper sealing.
2

Water Pump Pulley Bolts

M8 x 1.25
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Torque to 18 ft-lbs (24 N·m). Ensure proper alignment of the pulley before tightening.
3

Thermostat Housing Bolts

M6 x 1.0
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Torque to 7 ft-lbs (10 N·m). Ensure the thermostat is properly seated before tightening.
4

Coolant Temperature Sensor Bolt/Fitting

M12 x 1.5
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Torque to 18 ft-lbs (24 N·m). If it is a fitting, a crows foot wrench will be required.

Lubrication System

Fasteners for securing oil system components, including the oil pan, oil filter housing and oil pressure sensor.

1

Oil Pan Bolts

M6 x 1.0
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Torque to 7 ft-lbs (10 N·m). Tighten in sequence specified in the service manual to ensure proper sealing.
2

Oil Filter Housing Bolt

M8 x 1.25
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Torque to 18 ft-lbs (24 N·m). Ensure proper alignment of the housing before tightening.
3

Oil Drain Plug Bolt

M14 x 1.5
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Torque to 18 ft-lbs (24 N·m). Use a new sealing washer. Do not overtighten.
4

Oil Pressure Sensor Bolt/Fitting

M10 x 1.0
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Torque to 18 ft-lbs (24 N·m). If it is a fitting, a crows foot wrench may be required.

Engine Accessories

Fasteners for securing engine accessories such as the drive belt tensioner and idler pulley.

1

Serpentine/Accessory Drive Belt Tensioner Bolt

M8 x 1.25
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Torque to 18 ft-lbs (24 N·m). Ensure proper alignment of the tensioner before tightening.
2

Drive Belt Idler Pulley Bolt

M8 x 1.25
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Torque to 18 ft-lbs (24 N·m). Ensure proper alignment of the pulley before tightening.

Engine Sensors

Fasteners for various engine sensors.

1

Knock Sensor Bolts

M8 x 1.25
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Torque to 15 ft-lbs (20 N·m). Ensure proper sensor seating.
2

VANOS Solenoid Bolts

M6 x 1.0
Torque Value
8 ft-lbs (11 N·m)
Important Notes
Torque to 8 ft-lbs (11 N·m). Ensure proper solenoid seating.

Engine Covers

Fasteners for securing the timing cover.

1

Timing Cover Bolts

M6 x 1.0
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Torque to 7 ft-lbs (10 N·m). Tighten in the sequence specified in the service manual.
2

Timing Cover Bolts

M8 x 1.25
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Torque to 18 ft-lbs (24 N·m). Tighten in the sequence specified in the service manual.

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

Why are torque specifications important when working on my BMW 3.0L engine?

Torque specifications ensure that fasteners are tightened to the correct tension. Over-tightening can lead to bolt or component damage, such as stripped threads or warped parts. Under-tightening can result in leaks, vibrations, or component failure. Following BMW's torque specs is crucial for engine longevity and performance. For example, an improperly torqued cylinder head bolt can lead to blown head gaskets.

Q2

What happens if I don't have a torque wrench?

While it's strongly recommended to use a torque wrench for critical engine components like cylinder heads, connecting rods, and main bearing caps, other less critical components might be torqued using a 'feel' method. However, this is not advisable for the 3.0L engine. Without a torque wrench, you risk either overtightening and damaging components, or undertightening and causing leaks or component failure. Always invest in a proper torque wrench for accurate torque application.

Q3

Are all torque specs for the 3.0L engine the same?

No, torque specifications vary greatly depending on the component and its location. For example, the cylinder head bolts have a multi-step tightening sequence with specific torque values and angles, while smaller bolts securing plastic covers might have much lower torque values. Always refer to the manufacturer's specifications for the exact bolt being worked on and do not assume consistency.

Q4

Should I use thread locker on all bolts when reassembling my 3.0L engine?

No, not all bolts require thread locker. BMW specifies when to use thread locker (e.g., Loctite). Some components, like those with self-locking nuts or bolts, don’t need it. Using thread locker where it is not required can make future disassembly difficult or even damage components. Consult the BMW repair manual for thread locker recommendations.

Q5

Do torque specifications change when using aftermarket bolts?

Yes, using aftermarket bolts could have different material properties and could require modified torque values. Always refer to the aftermarket bolt manufacturer's instructions regarding recommended torque specifications, or confirm the material and grade of the bolt before using original specs. Using a bolt with incorrect specs could lead to catastrophic failure of the engine.

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

Torque Wrench

A calibrated torque wrench is essential for tightening bolts to the correct specifications. Both 3/8" and 1/2" drives may be needed depending on the bolt size.

  • Accurate torque measurement
  • Click-type or digital display
Learn more

Socket Set (Metric)

A comprehensive metric socket set is necessary for various bolt head sizes. Include deep sockets and shallow sockets.

  • Various sizes for different bolts
  • Both deep and shallow sockets
Learn more

E-Torx Socket Set

E-Torx sockets are needed for certain engine components that utilize external Torx fasteners.

  • Various sizes for E-torx fasteners
  • Durable construction
Learn more

Torx Bit Set

Torx bits are required for fasteners found on various components within the engine.

  • Various Torx sizes for different fasteners
  • Secure fit for proper torque
Learn more

Extension Bars

Extension bars allow access to fasteners in hard-to-reach areas.

  • Various lengths for increased reach
  • Securely connect to sockets
Learn more

Joint (Swivel) Adapter

A swivel adapter provides flexibility when accessing fasteners at angles.

  • Allows torque application at an angle
  • Durable construction
Learn more
Service Procedures

Cylinder Head Bolt Tightening

Properly torquing the cylinder head bolts is critical for maintaining compression and preventing leaks. Follow the specified torque sequence and values.

  • Clean all mating surfaces thoroughly.
  • Install new cylinder head bolts.
  • Tighten all bolts to the first specified torque value following the sequence.
  • Tighten all bolts to the second specified torque value following the sequence.
  • Tighten all bolts by the specified angle following the sequence.
  • Verify all bolts are tightened to the final specification.
View full procedure

Intake Manifold Bolt Tightening

Torque the intake manifold bolts to the specified value to ensure a proper seal and prevent vacuum leaks.

  • Ensure the intake manifold gasket is properly seated.
  • Install the intake manifold.
  • Tighten all bolts to the specified torque value following the sequence.
  • Verify all bolts are tightened to the final specification.
View full procedure

Valve Cover Bolt Tightening

Torque the valve cover bolts to the specified value to ensure a proper seal and prevent oil leaks.

  • Ensure the valve cover gasket is properly seated.
  • Install the valve cover.
  • Tighten all bolts to the specified torque value following the sequence.
  • Verify all bolts are tightened to the final specification.
View full procedure

Connecting Rod Bolt Tightening

Connecting rod bolts are critical and must be torqued accurately for engine reliability. Follow the specified torque sequence and angle.

  • Clean and inspect all connecting rod bolts.
  • Apply fresh engine oil to the bolt threads and under the bolt head.
  • Install the connecting rod cap and bolts.
  • Tighten all bolts to the first specified torque value following the sequence.
  • Tighten all bolts to the second specified torque value following the sequence.
  • Tighten all bolts by the specified angle following the sequence.
  • Verify all bolts are tightened to the final specification.
View full procedure

Main Bearing Cap Bolt Tightening

Proper tightening of the main bearing cap bolts is essential for crankshaft support and longevity. Follow the specified torque sequence and angle.

  • Clean all mating surfaces.
  • Inspect all main bearing cap bolts.
  • Apply fresh engine oil to the bolt threads and under the bolt head.
  • Install the main bearing caps and bolts.
  • Tighten all bolts to the first specified torque value following the sequence.
  • Tighten all bolts to the second specified torque value following the sequence.
  • Tighten all bolts by the specified angle following the sequence.
  • Verify all bolts are tightened to the final specification.
View full procedure
Technical Service Bulletins

Cylinder Head Bolt Stretch Issue

2010-06-15

Some early production 3.0L engines experienced issues with cylinder head bolt stretch at higher temperatures and performance. This could lead to head gasket failures.

2007-2009

Resolution: Replace cylinder head bolts with updated bolt design. Confirm proper tightening sequence and torque specifications are followed. Recommended to perform a cooling system pressure test after repairs.

Intake Manifold Gasket Leakage

2011-11-20

Certain intake manifolds with high mileage exhibited vacuum leaks due to gasket material degradation. This can lead to idle and performance issues.

2007-2011

Resolution: Replace intake manifold gasket with an updated design. Inspect intake manifold for warpage and replace if necessary. Ensure proper bolt torque to prevent future leaks. A smoke test is recommended after installation.

Oil Pan Bolt Leakage

2012-04-02

Some instances of oil leakage were reported due to improper sealing of the oil pan. Check for pan warpage and replace the gasket when performing oil pan service.

2007-2012

Resolution: Replace the oil pan gasket with a new one. Inspect the oil pan for warpage, ensure a clean surface and follow correct torque sequence and specifications when reassembling. Use sealant where specified.

About the Author

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