BMW 730d Water Pump Failure — Overheating
The mechanical water pump on M57 engines can fail as the plastic impeller separates from the shaft, stopping coolant circulation while the shaft continues to turn. The car appears to run normally until overheating occurs. The failure gives no warning code — only the temperature gauge rising. Always replace the water pump when doing any major cooling system work.
Onarım / Çözüm
No confirmed fixes yet. Share yours below.
⚠️ Yanlış Teşhis mi?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this BMW 7 Series 2002 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
🚗 More About This Vehicle
📖 Related Repair Guides
Deneyiminizi paylaşarak diğer araç sahiplerine yardım edin.
Your real-world fix helps thousands of drivers worldwide. Takes 2 minutes.