Mercedes W204 C-Class Camshaft Position Sensor Failure
Mercedes-Benz
C-Class
2007
M271/M272
⚡ Quick Summary
Severity Level
Medium
Safe to Drive?
⚠️ Drive with Caution
Safety Impact
Indirect risk — worth monitoring, not urgent
Urgency Level
🟡 Monitor Closely
The camshaft position sensor on M271/M272-engined W204 fails causing rough running, intermittent stalling and P0340/P0345 codes. Sensor replacement costs £80-200 fitted.
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 2007 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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