Is it safe to drive with Mercedes E-Class Coolant Smell — EGR Cooler Internal Leak?

Generally safe to drive for short distances, but the fault should be diagnosed and repaired promptly.

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Mercedes E-Class Coolant Smell — EGR Cooler Internal Leak — Mercedes-Benz E-Class 2009 | MyCarFault

Mercedes E-Class Coolant Smell — EGR Cooler Internal Leak

Mercedes-Benz E-Class 2009 OM651 2.2 CDI

Safe to Drive?

🚫 Do NOT Drive

Urgency Level

🟠 Fix Soon

Sweet-smelling exhaust smoke combined with coolant consumption without external leak on W212 E220d indicates an internal EGR cooler crack allowing coolant into the intake. This is the most common internal coolant loss on OM651 diesel. EGR cooler replacement: £400-800.

Repair / Solution

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⚠️ Important Notice

Mercedes E-Class Coolant Smell — EGR Cooler Internal Leak

Repair / Solution

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