Is it safe to drive with Mercedes W220 S320 CDI EGR Valve Failure?

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

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Mercedes W220 S320 CDI EGR Valve Failure — Mercedes-Benz S-Class 2003 | MyCarFault

Mercedes W220 S320 CDI EGR Valve Failure

Mercedes-Benz S-Class 2003 OM613 3.2 CDI

Safe to Drive?

✅ Safe to Drive

Urgency Level

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The EGR valve on W220 S320 CDI accumulates carbon deposits causing limp mode and P0400 codes. The OM613 diesel EGR system is a known maintenance item. Cleaning resolves most cases at 120,000+ miles. Replacement EGR valve costs £250-500.

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Mercedes W220 S320 CDI EGR Valve Failure

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