Common Issues We Diagnose & Fix

Known faults we see often — especially on Mercedes-AMG engines. Find yours, or describe your symptoms and we’ll get to the root cause.

M156Engine Faults

M156 6.2L V8 — sticking flaps, actuator faults and vacuum leaks.

M156 6.2L V8 — degraded harness causing misfires and phantom faults.

M157 5.5L biturbo V8 — the rods are the limit when you chase big power.

M177 4.0L biturbo V8 — oil separators, PCV and rear crank seal.

Don’t see your issue? We diagnose far more than this — tell us what your car is doing.