W124 300E 1989 Needs New Water Pump - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 10-18-2005, 09:15 AM Thread Starter
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W124 300E 1989 Needs New Water Pump

I need to install a new water pump in my 1989 300E engine # 103.983. I have heard it is very difficult? I have the tools and have installed 3 other water pumps in my other cars in the past, however never a Mercedes. Is there some trick to the 300 E. Any advice would be welcome!! Thanks.[:)]
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post #2 of 3 (permalink) Old 10-20-2005, 08:46 PM
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RE: W124 300E 1989 Needs New Water Pump

hi preston32,
I just bought and 89 w124 too. congrats, its a great car, no?

listen man there is a whole dedicated forum for our cars here:

Mercedes-Benz Sedan Forums » W124 E,CE,D,TD Class

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post #3 of 3 (permalink) Old 10-21-2005, 11:24 PM
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RE: W124 300E 1989 Needs New Water Pump

I did it a week ago on my 300se (same engine). It is a huge pain in the ass. Hardest car I've come across. Be prepared to spend your weekend on it, and make sure to order a new belt tensioner which you will probably need. Remove the radiator, belt, hoses, fan clutch, water pump pulley, pwr steering pump pulley, belt tensioner, and remove the power steering pump from the bracket so you can set it aside (don't take off the hoses!). You'll want to remove the distributor cap and cover too. Renew the tstat and heater line o rings.

A collection of 1/4 u joints, sockets, wrenches, breaker bars, and extensions REALLY help. A lot of creativity too. It's not that HARD, just very tedious.

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