Water Pump May Develop Coolant Leak on BMW 323i

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.

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Average mileage: 123,000 (80,000–164,000)
1 model year affected: 2000
4 people reported this problem
3 people shared problem details
2000 BMW 323i164,000
Oil was leaking into the coolant system. It wasn't really bad but I could dab off some oil from the coolant system and add a little coolant. Then one day the car overheated and I had to have the engine rebuilt.
2000 BMW 323i125,000
Water pump developed a leak and then failed. thankfully no engine damage.
2000 BMW 323i80,000
I had this problem too, see: engine overheating, to see how much is involved...
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