2024 BMW 4 Series Pre-Purchase Inspection Checklist
Known Issues — 2024 BMW 4 Series
CRITICAL
Cooling system failures on 2.0L N20/B48 engines
MINOR
N20 timing chain tensioner failure on 2017-2020 F32
MODERATE
Oil consumption on 4-cylinder variants
MODERATE
Electronic module failures
MINOR
Convertible top hydraulic leak on 4 Series Convertible
What to Inspect
- Check coolant and water pump
- Listen for timing chain rattle on 2017-2020 N20
- Check oil for consumption
- Scan for fault codes
- Test convertible top if applicable
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Oil change | every 10,000 miles | $130-$200 |
| Brake pads + rotors (front) | every 30,000 miles | $450-$800 |
| Spark plugs | every 60,000 miles | $200-$350 |
| Coolant flush | every 4 years | $150-$250 |
| Transmission fluid | every 50,000 miles | $300-$500 |
| Battery (AGM) | every 5-7 years | $350-$600 |
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