Car Problem Reports

BMW Z4 Coolant Loss Due to Leak from Expansion Tank

 
BMW Z4 Problem
16 Reports
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Model Years Affected: 2003, 2004, 2005

Average Mileage: 73,892 mi (58,000 mi - 107,000 mi)

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An engine coolant leak may develop from the expansion tank resulting in engine overheating. When a cooling system component fails the entire cooling system should be inspected. It is not uncommon to find additional component have failed or are leaking.

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.