Mercedes C220 BlueTEC W204 OM651 High Mileage Diesel
Mercedes-Benz
C-Class
2012
OM651 2.2 CDI BlueTEC
⚡ Quick Summary
Severity Level
Medium
Safe to Drive?
⚠️ Drive with Caution
Safety Impact
Indirect risk — worth monitoring, not urgent
Urgency Level
🟡 Monitor Closely
W204 C220 BlueTEC at 300,000 km: EGR valve clean, EGR cooler pressure test, injector seal inspection, 7G-Tronic fluid service and AdBlue NOx sensor function 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 2012 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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