Car Problem Reports

BMW 323Ci Coolant Loss Due to Leak from Expansion Tank

BMW 323Ci Problem
8 Reports
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Model Year Affected: 2000

Average Mileage: 126,000 mi (76,000 mi - 208,000 mi)


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.

  • , , 115,000 mi

    Coolant light came on and within 10 minutes the temperature gauge went into the red and the car shut off. Had it towed to shop. Replaced expansion tank, hoses, and water pump for $800.

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  • , , 76,000 mi

    Overflow problem

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