ExhaustHigh
DPF and AdBlue faults on OM651 and OM654 diesels
- Typically appears
- 80,000+ miles
- What to inspect
- Check AdBlue warnings and run to full temperature
2013–2025 Mercedes-Benz E-Class · common problems & known faults
An executive staple, often ex-fleet or ex-private-hire. History quality separates a good car from a liability.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed August 2026
Quick answer
The most commonly reported faults on the 2013–2025 Mercedes-Benz E-Class are DPF and AdBlue faults on OM651 and OM654 diesels, Air suspension (Airmatic) leaks and compressor failure and Injector and turbo actuator faults on older diesels. 3 of the documented issues are rated high severity · inspect these first. Full inspection points, onset mileage and what to check are listed below.
Reliability snapshot
Based on the documented faults on this page for the Mercedes-Benz E-Class.
6.1/ 10
- Critical
- 0
- High
- 3
- Medium
- 1
- Low
- 0
Guidance only · reflects reported patterns, not a specific car's condition.
Known faults to check
SuspensionHigh
Air suspension (Airmatic) leaks and compressor failure
- Typically appears
- 80,000+ miles
- What to inspect
- Check the car sits level after standing and cycle the modes
EngineHigh
Injector and turbo actuator faults on older diesels
- Typically appears
- 90,000+ miles
- What to inspect
- Listen for uneven idle and check for smoke
ElectricalMedium
COMAND infotainment and camera faults
- Typically appears
- Age-related
- What to inspect
- Test all cameras, screens and driver assistance
Inspecting a Mercedes-Benz E-Class?
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Check this exact carFrequently asked questions
Are ex-taxi E-Classes worth it?
Only at trade money with the interior reconditioned. Buyers spot worn seats and rear trim quickly.
What is the biggest bill?
Airmatic suspension or injectors. Both easily exceed the margin on an older car.
Estate or saloon?
Estates hold a clear premium in the UK used market.
Sources & further reading
Faults are compiled from documented recalls, technical bulletins, owner reports and mechanic sources, then reviewed for accuracy. This is guidance only · not a substitute for a professional inspection.