Mercedes C250 W204 2.1T M651 Long Term Guide
Mercedes-Benz
C-Class
2011
M651 2.1T 204PS
⚡ Quick Summary
Severity Level
Medium
Safe to Drive?
✅ Safe to Drive
Safety Impact
No direct safety impact reported by owners
Urgency Level
🟡 Monitor Closely
C250 W204 M651 at 250,000 km: M651 EGR valve clean, EGR cooler pressure test, 7G-Tronic fluid, front lower arm bush and carbon intake valve check.
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 C-Class 2011 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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