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E28 (1982 - 1988)

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Old 07-21-2013, 04:45 PM
JoePro8011 JoePro8011 is offline
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Location: Virginia BEach
Join Date: Jul 2013
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Mein Auto: BMW 528e
Antifreeze leak. Bad waterpump?

Hi again.
Theres an antifreeze leak that runs from the front of the engine down towards the oil pan and it persistently gets worse the longer the car runs. The first minute or two there isn't even a leak and when it does start it's very slow. It's not coming from anywhere near the thermostat housing, I wish it was. I think it's a bad waterpump but I found online that if it's a bad waterpump then the fan would be loose, which mine isn't at all. It seems to be coming from right where the waterpump is but I can't tell for sure. What else in that area would leak? Do you think it's a bad waterpump? I don't know when the last time it was changed but the car has 130k miles on it, and I think I should go ahead and change the timing belt anyways.
What are some of your thoughts?

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Old 07-22-2013, 07:12 AM
catso's Avatar
catso catso is offline
Location: Chicago
Join Date: Dec 2009
Posts: 3,115
Mein Auto: 2000 323i, 1988 528e
My waterpump leaked a liitle before it went bad, then FROZE UP! The bearings were not loose. If you change it, consider replacing the timing belt and tensioner, and maybe even the front seals while you are in there.
Don't be gormless; get some gorm!
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Old 07-22-2013, 01:23 PM
joem52002 joem52002 is offline
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Location: Dover, NJ
Join Date: Jun 2013
Posts: 46
Mein Auto: e28M, 2002
seals are rubber and can leak without the metal bearings being worn.
Rubber degrades with time and bearings wear with miles.
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