Mercedes CLS W218 350d 350 BlueTEC OM642 Timing Chain
Mercedes-Benz
E-Class
2011
OM642 3.0 CDI V6
⚡ Quick Summary
Severity Level
Medium
Safe to Drive?
⚠️ Drive with Caution
Safety Impact
Indirect risk — worth monitoring, not urgent
Urgency Level
🟡 Monitor Closely
The OM642 V6 diesel in CLS W218 can develop timing chain stretch at very high mileage (180,000+). Cold start rattle is the warning. V6 chain replacement: £1,500-3,000.
Onarım / Çözüm
No confirmed fixes yet. Share yours below.
⚠️ Yanlış Teşhis mi?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this Mercedes-Benz E-Class 2011 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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