BMW 640i Gran Coupe F06 N55 Water Pump
BMW
5 Series
2012
N55 3.0 Turbo
⚡ Quick Summary
Severity Level
High
Safe to Drive?
🚫 Do NOT Drive
Safety Impact
Direct safety risk — affects safe operation of the vehicle
Urgency Level
🟠 Fix Soon
The electric water pump on N55-engined 640i Gran Coupe fails causing overheating. Replace at 80,000 miles. Cost: £350-600.
Repair / Solution
No confirmed fixes yet. Share yours below.
⚠️ Wrong Diagnosis?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this BMW 5 Series 2012 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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