2018 BMW X3 Pre-Purchase Inspection Checklist
Known Issues — 2018 BMW X3
CRITICAL
Cooling system failures — water pump and thermostat housing plastic cracking
MODERATE
Oil consumption on 2.0L 4-cylinder B48 engine
MODERATE
Electronic module failures across multiple systems
MODERATE
Panoramic sunroof water intrusion
MODERATE
High out-of-warranty repair costs
What to Inspect
- Check coolant level and water pump for leaks
- Check oil for consumption on 4-cylinder
- Scan all modules for fault codes
- Inspect panoramic roof seals
- Verify BMW service history
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Oil change | every 10,000 miles | $140-$210 |
| 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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