Parts Catalog Accessories Catalog Tech Info Tech Forums
  Search our site:    
 Cart  | Project List | Order Status | Help    

Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 02-27-2002, 11:29 PM
Mr. BILL's Avatar
Ghoulardi Rules!
Join Date: Aug 2000
Location: Austin, TX
Posts: 576
Water Pump Success!

Well, I finally got around to replacing the water pump on my '90 300SE. It took me a whole day, but I got it done and NO LEAKS! I did drop a socket behind the pump as I was 90% finished. My magnet was too big to pull it out, I don't know how I got it out, but after 45 minutes of Zen and Yoga breathing,cussing and prating I got it.

The most difficult thing was getting the top bolt off the pump under the intake. I used a combination of 1/4" wobble extensions to get at it.

I went ahead and got a Mercedes pump for $100 and MB coolant T-stat, hoses ect. All in all, I spent about $150, the shop wanted $500 and it's worth it if you don't have the time/patience to DIY. Having done it, I think I could do it again in about 4 hours, (not that I'd want to).

Thanks to all who posted assistance, especially CHOWPIT for the CD instructions, they were a big help.

1. Disconnect battery
2. Remove Shroud
3. Remove Air cleaner housing
4. Loosen tensioner and remove belt
5. Drain/flush system
6. Remove Water pump and Power steering pulleys
7. Remove upper/lower radiator hoses
8. Loosen steering pump and swing out of the way
9. Remove belt tensioner (I didn't remove the bracket)
10.Disconnect the return tube on top of the pump.
11.Unbolt and remove the pump (easier said than done)
12.Carefully clean surfaces on block, apply small amount of grease to mating surfaces.
13.Assembly is reverse

Re-filling tip: make sure heater is set open, pour coolant into opening of t-stat until completely full, then place t-stat and cover, fill resivoire start engine let idle, check for leaks and heat.

91 300E 120K
90 300SE 275K (sold)
92 BMW 525iM 120K
90 BMW 525iA 175K
85 300D 175K (sold)
84 300SD 245K (sold)
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
I rebuilt my auxiliary water pump MVK General Information 4 02-28-2011 04:12 PM
Theoretical question regarding water pump wear… RunningTooHot Tech Help 2 10-09-2003 09:46 AM
Water pump installation on M127 engine Gregg Bambo Jr Vintage Mercedes 2 01-28-2003 10:56 AM
Can you rebuilt Auxillary Water Pump. MVK Diesel Discussion 10 09-20-2002 12:29 AM
aux. water pump & mono valve questions TheLaw Tech Help 1 08-23-2001 10:01 PM

All times are GMT -4. The time now is 02:28 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page