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The BMW Range
3 Series
E36
Urgent Advise on E36
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<blockquote data-quote="Gerald 5" data-source="post: 325999" data-attributes="member: 10337"><p>Just to share from another forum AS BELOW</p><p>Early E36 BMWs were built with water pumps that have plastic impellers. Over time, the impellers become brittle, crack, flake, and eventually stop spinning altogether. This is a well-known problem. BMW replaced the plastic-impeller pump with one that had a metal impeller in production at some point in 1996, for cars sold as model year 1997. These pumps were not without their own problems, though: they were prone to bearing failures. The third (and hopefully final) water pump is the one now available from BMW. Its impeller is made of a composite material.</p><p>A failing water pump may not exhibit any symptoms. a head-on view of the impeller.</p></blockquote><p></p>
[QUOTE="Gerald 5, post: 325999, member: 10337"] Just to share from another forum AS BELOW Early E36 BMWs were built with water pumps that have plastic impellers. Over time, the impellers become brittle, crack, flake, and eventually stop spinning altogether. This is a well-known problem. BMW replaced the plastic-impeller pump with one that had a metal impeller in production at some point in 1996, for cars sold as model year 1997. These pumps were not without their own problems, though: they were prone to bearing failures. The third (and hopefully final) water pump is the one now available from BMW. Its impeller is made of a composite material. A failing water pump may not exhibit any symptoms. a head-on view of the impeller. [/QUOTE]
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