TransmissionHigh
7G-DCT dual-clutch jerkiness and clutch wear
- Typically appears
- 70,000+ miles
- What to inspect
- Crawl in traffic and feel for shunting
2012–2025 Mercedes-Benz A-Class · common problems & known faults
Premium hatch with high UK volume through PCP returns. The 7G-DCT gearbox and electronics are the risk points.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed August 2026
Quick answer
The most commonly reported faults on the 2012–2025 Mercedes-Benz A-Class are 7G-DCT dual-clutch jerkiness and clutch wear, Timing chain wear on older petrols and oil leaks and MBUX screen failures and reversing camera dropouts. 1 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 A-Class.
7.6/ 10
- Critical
- 0
- High
- 1
- Medium
- 2
- Low
- 1
Guidance only · reflects reported patterns, not a specific car's condition.
Known faults to check
EngineMedium
Timing chain wear on older petrols and oil leaks
- Typically appears
- 90,000+ miles
- What to inspect
- Cold-start listen and underside inspection
ElectricalMedium
MBUX screen failures and reversing camera dropouts
- Typically appears
- Age-related
- What to inspect
- Test MBUX, voice control and camera
SuspensionLow
Front bushes and knocking over broken roads
- Typically appears
- 70,000+ miles
- What to inspect
- Listen over speed bumps
Inspecting a Mercedes-Benz A-Class?
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Check this exact carFrequently asked questions
Is the A-Class a good margin car?
Yes, AMG Line cars retail strongly with the right spec.
What is the biggest cost risk?
Dual-clutch gearbox repair on a high-mileage car.
Which engine?
The A200 petrol suits most UK retail buyers.
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.