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Singapore car repair guide

Mercedes C-Class: Vibration at idle (M274 engine)

If you are seeing this symptom in Singapore, use this as a pre-workshop checklist. The goal is to identify the likely root cause, avoid replacing the wrong part, and know the fair repair range before approving work.

Fair SG range
$400–$700
Red-flag quote
$1,500+
Likely fix
Engine mount pair replacement

What this usually means

75% likely the engine mounts (rubber + hydraulic). Real fix $400-700 for the pair. Agent sometimes pushes ECU/transmission diagnosis. Mounts wear at 80-100k km on M274.

What to ask the workshop before approving repair

  • • Show the diagnostic fault codes.
  • • Show photo/video proof of the failed part.
  • • Give an itemised quote for parts and labour.
  • • Explain why cheaper common fixes were ruled out.

This is not a final diagnosis. It is a money-saving checklist before you go workshop.

Other problems on this Mercedes C-Class (2014-2021)

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