2018 Mercedes-Benz CLA Pre-Purchase Inspection Checklist
Known Issues — 2018 Mercedes-Benz CLA
MODERATE
7G-DCT dual-clutch hesitation and jerk at low speed — persistent issue
MODERATE
Oil consumption in 2.0L turbo above acceptable range
MODERATE
Water pump failure common in this production year
MODERATE
Front brake rotors warping at lower mileage than expected
MINOR
COMAND system map data outdated and expensive to update
MODERATE
Catalytic converter efficiency codes at 80,000+ miles
What to Inspect
- Drive dual-clutch in urban stop-and-go to assess jerkiness
- Check oil dipstick and compare to last service date
- Inspect water pump area for coolant seepage
- Check for check engine light or catalyst codes
- Test brake pedal for pulsation
- Scan full vehicle for stored and pending codes
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Service A (oil & filter) | every 10,000 miles | $200-$300 |
| Service B (full inspection) | every 20,000 miles | $400-$620 |
| Spark plugs replacement | every 60,000 miles | $200-$350 |
| Dual-clutch transmission fluid | every 40,000 miles | $300-$450 |
| Brake pads and rotors (front) | every 30,000 miles | $500-$800 |
| Water pump replacement | as needed | $600-$1,000 |
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