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
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problem details
2000 BMW 323i 80,000 mi,
I had this problem too, see: engine overheating, to see how much is involved...
2000 BMW 323i 164,000 mi,
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 323i 125,000 mi,
Water pump developed a leak and then failed. thankfully no engine damage.