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.
Engine identification
Punch engine numbers at marked surface with number punch.
Magnesium crankcase with sticker
M47/M47TU/M47T2
M57/M57TU/M57T2
M67/M67TU
N47/N47S/N47C/N57 N57S
M52/M52TU
M54
M56
N40/N45/N45T/N43
N42/N46/N46T
N51/N52/N52K/N52T/N53/N54/N55
N62/N62TU
N73
S54
S85/S65
W10/W11
N12/N14/N16/N18
W17
Assemble engine.
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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