Mercedes S350 S400 CDI W222 BlueTEC DPF Warning
Mercedes-Benz
S-Class
2013
OM642 3.0 CDI BlueTEC
⚡ Quick Summary
Severity Level
Medium
Safe to Drive?
✅ Safe to Drive
Safety Impact
No direct safety impact reported by owners
Urgency Level
🟡 Monitor Closely
The DPF on W222 S350/S400 CDI requires sustained motorway driving for passive regeneration. A large luxury saloon used for city driving will block the DPF. Forced regen at a Mercedes workshop costs £150-300.
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 S-Class 2013 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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