2018 Mercedes-Benz GLA Pre-Purchase Inspection Checklist
Known Issues — 2018 Mercedes-Benz GLA
MODERATE
7G-DCT dual-clutch hesitation at low speed — persistent in class
MODERATE
Oil consumption between services
MODERATE
Water pump failure risk increasing at this mileage range
MODERATE
GLA45 clutch pack shudder under AWD engagement
MINOR
Rear parking sensors giving false alarms
MODERATE
Catalytic converter efficiency codes emerging at higher mileage
What to Inspect
- Test dual-clutch from standing start in urban traffic
- Check for catalyst-related check engine codes
- Inspect water pump for coolant seepage
- Test GLA45 for shudder during AWD launch
- Test rear parking sensors for false triggers
- Run full fault code scan
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Service A (oil & filter) | every 10,000 miles | $210-$320 |
| Service B (full inspection) | every 20,000 miles | $440-$650 |
| Spark plugs replacement | every 60,000 miles | $200-$360 |
| Dual-clutch transmission fluid | every 40,000 miles | $300-$460 |
| Brake pads and rotors (front) | every 30,000 miles | $500-$800 |
| Water pump replacement | as needed | $600-$1,000 |
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