BMW 323i Problem Report

BMW 323i Water Pump May Develop Coolant Leak

(3 reports)

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.

Water pump developed a leak and then failed. thankfully no engine damage. -
I had this problem too, see: engine overheating, to see how much is involved... -
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