Code
P15D1
BMW cooling
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Most likely causes
- مضخة كهربائية معطلة
- سلك تالف
Symptoms you may notice
- Overheating
- Check engine light
- Coolant warning
Checks to run
- Check coolant level
- Test pump power and wiring
- Check the pump
Tools you may need
Multimeter
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.