BMW 330i Problem Report

BMW 330i Coolant Loss Due to Leak from Expansion Tank

(10 reports)

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.

Expansion tank leaks -
Expansion tank required replacement. -
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