Mercedes E-Class AC Not Cooling — Refrigerant Leak
Mercedes-Benz
E-Class
2009
All
⚡ Quick Summary
Severity Level
Medium
Safe to Drive?
✅ Safe to Drive
Safety Impact
No direct safety impact reported by owners
Urgency Level
🟡 Monitor Closely
AC not cooling on W212 E-Class despite compressor running indicates refrigerant loss from a leak. The evaporator, condenser and hose connections are the most common leak points. AC system pressure test, repair and regas costs £150-400 depending on leak source.
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 E-Class 2009 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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