Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBMW2008M5 (E60) V10-5.0L (S85)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMSPARK PLUGSERVICE AND REPAIR
2008 BMW M5 (E60) V10-5.0L (S85)
Spark Plug: Service and Repair
2008 BMW M5 (E60) V10-5.0L (S85)SECTION Service and Repair
12 12 011 - Replacing all spark plugs (S85)
Special tools required:
- 12 1 171 12 1 170 Spark Plug Tool
- 12 1 172 12 1 170 Spark Plug Tool
Necessary preliminary tasks:
- Switch off ignition.
- Remove all ignition coils Service and Repair.
Important!
Wear protective goggles.
Oil and dirt particles may get into your eyes!
Clean spark plug slot with compressed air.
Unscrew spark plugs with special tool 12 1 171 12 1 170 Spark Plug Tool.
Installation Note:
Tighten down spark plugs with special tool 12 1 171 12 1 170 Spark Plug Tool and special tool 12 1 172 12 1 170 Spark Plug Tool (torque limiter).
Without special tool 12 1 172 12 1 170 Spark Plug Tool, observe tightening torque.
Tightening torque 12 12 1AZ [1][2]Specifications.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.