Mercedes E-Class E200 NGT CNG Valve Failure
Mercedes-Benz
E-Class
2004
M271 NGT CNG
⚡ 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 CNG high-pressure valve on W211 E200 NGT can fail causing the car to switch to petrol only and display a CNG system warning. Valve replacement costs £150-350.
Onarım / Çözüm
No confirmed fixes yet. Share yours below.
⚠️ Yanlış Teşhis mi?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this Mercedes-Benz E-Class 2004 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
🚗 More About This Vehicle
📋 All Mercedes-Benz E-Class fault reports →
🚘 All Mercedes-Benz fault reports →
🔧 Browse all fault reports →
Explore more Mercedes-Benz models
Deneyiminizi paylaşarak diğer araç sahiplerine yardım edin.
Your real-world fix helps thousands of drivers worldwide. Takes 2 minutes.