Water Pump May Develop Coolant Leak on BMW Z4

The low coolant light may illuminate and/or the engine may overheat as a result of a coolant leak from the water pump. The leaking pump will require replacement and the entire cooling system should be inspected for leaks as it is not uncommon to find multiple leaks on higher mileage vehicles.

Overheating can cause severe engine damage. If the engine begins to overheat it is recommended to stop at the first available location and have your vehicle towed to a repair shop.

RepairPal Verified
Average mileage: 71,000 (65,000–77,000)
4 model years affected: 2003, 2004, 2005, 2006
5 people reported this problem
1 person shared problem details
Faulty water pump connector.
Related Items:
An engine coolant leak may develop from the expansion tank resulting in engine overheating. Whe...
Took it to the dealer (rip off). They tested everything and replaced the sensor sending unit. F...
It is not uncommon for the radiator to develop a coolant leak. A leaking radiator will require...
My car only has about 80K miles on it and my air compressor is leaking oil. Can I just have my...
Valve cover gasket leaks are common after 60,000 miles. Symptoms will include oil drips under t...