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Common failure (archive)
[ Follow Ups ] [ 3-series (E30) Message Board ] [ Msg. Board FAQ ]
Posted by Lee on April 15, 2001 at 22:41:42:

In Reply to: Overheating problem posted by Alex on April 15, 2001 at 22:24:30:

The M50 engine came with a waterpump with a plastic impeller, which is prone to crack and spin freely without moving any water.

Newer pumps have an aluminum impeller, and this model is much better. Do not drive the car. Have your mechanic check the waterpump...

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