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.
Spark Plugs
Spark plugs play an important part in controlling timing, turbo boost and throttle position because they are used as sensors in the combustion chambers. To check for proper operation of spark plugs, remove ignition discharge module (IDM). Remove spark plugs. Inspect for deposits or damage to porcelain or electrode. Replace if necessary. Gap plugs to .040" (1.0 mm). Apply Molykote 1000 or equivalent to spark plug threads before reinstalling. Tighten spark plugs to 28 ft. lbs (28 Nm). Apply Krytox (Part No. 30 19 312) to rubber IDM seals before installing IDM.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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