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Old 09-12-2001, 02:54 PM
The Bob
Posts: n/a
Water pump on 84 300d

I know that my problem seems small compared to those who lost loved ones in NY.

Simply, is the water pump in an 84 300d difficult to replace. I believe that mine has just expired by the presence of gross coolant loss in the front mid section of my car. The car has 245,000 and does not have any oil in the leakage. my engine oil also appears free of coolant. I am glad that I found this problem before I did any real damage.

I think that this is the original water pump.

thanks for your help

and sorry for anyones loss

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Old 09-12-2001, 03:11 PM
Registered User
Join Date: Jun 2000
Location: Plano, TX
Posts: 2,513
Hi Bob -

They don't get any easier than this car. If you take your time, do a thorough job, have a coffee break, and it's you first time, then it *might* take 90 minutes. Seriously, I know folks who have done this job on their lunch hour.

Be certain to get a good quality replacement pump. The chain-store-cheapies have an impeller made of stamped sheet metal - don't use one of these, whatever you do. The dealer is actually a good bet. Last I checked, an official MB rebuilt water pump listed at $25. Guess I should put in a plug for Partshop too - they have a couple options from $32 to $53.

I like to use a copper based gasket sealant on the water pump gasket. I find they never leak upon reassembly when using this stuff. Also greatly eases reassambly - it dries tacky, so can be used to hold the gasket in place while you put it back together.
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Old 09-12-2001, 04:33 PM
Palangi's Avatar
L' Résistance
Join Date: Dec 2000
Location: Republique de Banana
Posts: 3,496
Not hard to replace, and reasonably priced. Please replace the short hose down there, as it is pretty much inaccessable with the water pump in place. A genuine MB water pump will have a small MB star logo on it. I would not use anything but a genuine MB water pump.

2004 C240 Wagon 203.261 Baby Benz
2008 ML320 CDI Highway Cruiser
2006 Toyota Prius, Saving the Planet @ 48 mpg
2000 F-150, Destroying the Planet @ 20 mpg

0BAMA .......... OUTHOUSE
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Old 09-13-2001, 10:13 AM
The Bob
Posts: n/a
Thank you all for your replies

I bought the water pump from MB for 32 dollars... this may be the cheapest repair yet for the diesel. It looks like a easy enough repair.

Thanks to all and sympathy for those who have lost.

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Old 09-14-2001, 07:56 PM
The Bob
Posts: n/a
Again thanks to all for your help and my grievences for those who lost loved ones.

I got it in about 90 minutes and it was not hard at all

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