2021 Mercedes-Benz CLA Pre-Purchase Inspection Checklist
Known Issues — 2021 Mercedes-Benz CLA
MINOR
MBUX software freezing resolved by OTA update
MODERATE
8G-DCT low-speed jerk from standing starts in traffic
MODERATE
Oil consumption in 2.0L turbo above normal
MINOR
Panoramic sunroof wind noise at highway speeds
MODERATE
CLA45 front brake rotor warping under repeated performance driving
MINOR
Rear park distance control sensor false trigger
What to Inspect
- Test dual-clutch in slow traffic — multiple stops from zero
- Confirm MBUX OTA version is current
- Check oil level relative to last service
- Test panoramic sunroof for wind noise at highway speeds
- Test CLA45 brake pedal for pulsation
- Pull full fault code scan
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Service A (oil & filter) | every 10,000 miles | $230-$340 |
| Service B (full inspection) | every 20,000 miles | $480-$680 |
| Spark plugs replacement | every 60,000 miles | $220-$380 |
| Dual-clutch transmission fluid | every 40,000 miles | $320-$470 |
| Brake pads and rotors (front) | every 25,000-35,000 miles | $550-$900 |
| Cabin air filter | every 20,000 miles | $70-$110 |
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