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Auxiliary water pump sound like a fire alarm

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Auxiliary water pump sound like a fire alarm

 
Old 05-31-2010, 01:31 PM
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02ML320
Auxiliary water pump sound like a fire alarm

Has anybody change out one of these?
Where did you get the part?
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Old 06-04-2010, 05:21 PM
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Wow, I'm the only 1 with a bad one of these.
In any case, got one from Autohause for $206 shipped.

Dealer wants $275 plus tax-$60 (core) and $16 for the coolant, which is not bad (the coolant that is). I am a little wary of places that charge for cores, that only means they sell rebuilt and not new.
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Old 06-05-2010, 07:12 PM
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2001 E55, 2002 ML55, 2002 SL500, 2003 CLK55
Originally Posted by missthebus View Post
Wow, I'm the only 1 with a bad one of these.
In any case, got one from Autohause for $206 shipped.

Dealer wants $275 plus tax-$60 (core) and $16 for the coolant, which is not bad (the coolant that is). I am a little wary of places that charge for cores, that only means they sell rebuilt and not new.
Sometimes I'm amazed also at the lack of replies to questions.
Regardless, I did mine which I'm assuming is little bit different from a six. If your water pump is anything like mine (ML55) then take your time and make a diagram where all the bolts go since they're not all the size size or length.
Other than that it's fairly straight forward, just take your time and remember to use either the Mercedes coolant or the correct replacement. Don't cheap out with crappy coolant!
By the way, you may want to also think about changing your pulley and tensioner at this time also.
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Old 06-06-2010, 01:40 AM
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Thanks
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Old 10-24-2012, 10:52 AM
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1990 190E 2.6, ... 1998 ML320, 2005 ML500SE
There are several writeups on this Aux Pump repair on other Mercedes Forums. Repair for just a few dollars and alternate parts which are the same from other auto manufacturers that cost around 20% of the Mercedes part coat.
Mike
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