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Re: Plastic Impeller + Plastic Radiator = Danger (archive)

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Posted by Concerned 95 M3 Owner on June 15, 2000 at 01:51:43:

In Reply to: Probably. (more) posted by Henry on June 12, 2000 at 09:16:30:

Thereís a lot of discussion regarding 95 M3ís and their water pumps. If you are an owner of a 95 model and experienced water pump failure it might be wise to have your radiator checked out as well. It turns out that the stock E36 radiators have plastic mounting necks for the radiator hoses (donít ask me why BMW specked plastic parts for such a vital components, so much for German engineering). The increase in temperature resulting in the water pump failure results in a massive increase in water pressure within the closed loop of the cooling system. This increase in pressure can cause the already weak plastic necks to fail. Needless to say, all this costs a lot of cash to fix let alone the potential for massive engine failure. My mechanic told me that heís seen a lot of regular E36ís, not just the M3 variety, with this problem. Of course, the argument that BMW USA has against this is that there are 95 models that have 100K+ on their odometers without any hint of a problem. The arrogance of BMW borders on insane considering that I slipped on my own radiator fluid nearly causing me to run off the freeway at 55+ MPH! Fortunately nobody was in the next lane when I lost control of the car. German cars are spirited, but with fundamental design flaws like this, they're definitely not perfect.

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