2023 Mercedes-Benz C-Class Pre-Purchase Inspection Checklist
Known Issues — 2023 Mercedes-Benz C-Class
MODERATE
MBUX infotainment software freezes requiring dealer OTA updates
MODERATE
48V mild hybrid system warning lights from sensor faults
MINOR
C43 AMG exhaust flap rattle at cold start
MODERATE
Rear-axle steering calibration loss after wheel alignment
MODERATE
PHEV battery not holding full charge after software issue
MINOR
Ambient lighting LED strip failure in door panels
What to Inspect
- Confirm MBUX software is on latest version and test all menus
- Check 48V mild hybrid system for stored faults
- Verify PHEV full charge range and charging port function
- Test rear-axle steering low-speed turn radius (if equipped)
- Listen for exhaust rattle at cold start on C43 AMG
- Inspect ambient lighting strips in all doors
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Service A (oil & filter) | every 10,000 miles | $300-$420 |
| Service B (full inspection) | every 20,000 miles | $600-$850 |
| Spark plugs replacement | every 60,000 miles | $300-$480 |
| Transmission fluid service | every 40,000 miles | $400-$550 |
| Brake pads and rotors (front) | every 30,000-40,000 miles | $700-$1,050 |
| PHEV high-voltage battery check | every 30,000 miles | $200-$400 |
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