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Mercedes E-Class Head Gasket Symptoms — OM651 Diesel — Mercedes-Benz E-Class 2009 | MyCarFault
⚪ UNSOLVED No confirmed fix yet · Be the first to help

Mercedes E-Class Head Gasket Symptoms — OM651 Diesel

Mercedes-Benz E-Class 2009 OM651 2.2 CDI
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⚡ Quick Summary
Severity Level
High
Safe to Drive?
🚫 Do NOT Drive
Safety Impact
Direct safety risk — affects safe operation of the vehicle
Urgency Level
🟠 Fix Soon

Head gasket failure on W212 E220d is uncommon but happens at very high mileage (250,000+ km). Symptoms include white smoke with coolant smell, rising coolant consumption without visible leak and overheating. More common cause of coolant loss on OM651 is EGR cooler crack — always test EGR cooler first.

Repair / Solution

No confirmed fixes yet. Share yours below.

⚠️ Wrong Diagnosis?

No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this Mercedes-Benz E-Class 2009 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.

🚗 More About This Vehicle

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