2020 Mercedes-Benz GLC Pre-Purchase Inspection Checklist
Known Issues — 2020 Mercedes-Benz GLC
MODERATE
9G-Tronic transmission shudder at light throttle application
MODERATE
Air suspension compressor failure on AIRMATIC examples
MODERATE
GLC63 valve cover oil leaks at higher mileage
MODERATE
Sunroof drain tube blockage causing interior leaks
MINOR
Active park assist sensor malfunctions
MINOR
Brake dust shield noise from corrosion
What to Inspect
- Test light throttle cruise for transmission shudder
- Inspect air suspension height and compressor noise
- Check GLC63 engine oil area for seepage at valve covers
- Verify sunroof drain channels are clear
- Test active park assist sensors on all sides
- Inspect brake dust shields for noise-causing corrosion
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Service A (oil & filter) | every 10,000 miles | $280-$400 |
| Service B (full inspection) | every 20,000 miles | $600-$850 |
| Spark plugs replacement | every 60,000 miles | $300-$700 |
| Transmission fluid service | every 40,000 miles | $400-$550 |
| Brake pads and rotors (front) | every 25,000-35,000 miles | $700-$1,050 |
| Air suspension compressor | as needed | $700-$1,100 |
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