TransmissionHigh
7G-DCT dual-clutch hesitation and jerky low-speed shifts
- Typically appears
- 60,000+ miles
- What to inspect
- Drive in slow traffic from cold
2014–2025 Mercedes-Benz GLA · common problems & known faults
A compact premium crossover sold heavily on PCP, so three-year-old cars arrive in volume with average specification.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed August 2026
Quick answer
The most commonly reported faults on the 2014–2025 Mercedes-Benz GLA are 7G-DCT dual-clutch hesitation and jerky low-speed shifts, Timing chain wear on early petrol units and DPF and AdBlue faults on diesel cars used in town. 2 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 GLA.
6.7/ 10
- Critical
- 0
- High
- 2
- Medium
- 2
- Low
- 0
Guidance only · reflects reported patterns, not a specific car's condition.
Known faults to check
EngineHigh
Timing chain wear on early petrol units
- Typically appears
- 70,000+ miles
- What to inspect
- Listen for a rattle on cold start
ExhaustMedium
DPF and AdBlue faults on diesel cars used in town
- Typically appears
- 60,000+ miles
- What to inspect
- Check warnings and run the car hot
ElectricalMedium
Infotainment, camera and keyless entry faults
- Typically appears
- Age-related
- What to inspect
- Test the screen, camera and keyless system
Inspecting a Mercedes-Benz GLA?
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Check this exact carFrequently asked questions
Does the GLA sell quickly?
Yes at the right money. It appeals to buyers who want the badge with SUV practicality.
What should I check from cold?
Chain noise and dual-clutch behaviour in the first two minutes. That is where the faults show.
Which spec matters?
AMG Line with navigation and reversing camera. Base cars are much harder work.
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.