2020 Mercedes-Benz A-Class Pre-Purchase Inspection Checklist
Known Issues — 2020 Mercedes-Benz A-Class
MODERATE
7G-DCT dual-clutch transmission jerky engagement at low speed
MODERATE
MBUX infotainment freezing requiring software update
MODERATE
Oil consumption in 1.3L turbo engine between services
MINOR
Front wiper chatter on light rain
MINOR
A35 AMG exhaust drone at 2,000-2,500 rpm cruise
MODERATE
Blind spot assist radar intermittent failure
What to Inspect
- Test dual-clutch transmission in slow urban traffic
- Verify MBUX software version and test for stability
- Check oil level and consumption history in service records
- Test blind spot assist in lane-change scenario on highway
- Listen for A35 AMG exhaust drone at steady cruise
- Scan all modules for fault codes
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Service A (oil & filter) | every 10,000 miles | $220-$320 |
| Service B (full inspection) | every 20,000 miles | $450-$650 |
| Spark plugs replacement | every 60,000 miles | $200-$350 |
| Dual-clutch transmission fluid service | every 40,000 miles | $300-$450 |
| Brake pads and rotors (front) | every 30,000-40,000 miles | $500-$800 |
| Cabin air filter | every 20,000 miles | $60-$100 |
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