2008 BMW Z4 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2008 BMW Z4
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2008 BMW Z4 ProblemsCoolant Loss Due to Leak from Expansion Tank
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.