Mercedes S Class Mercedes S350, Mercedes S430, Mercedes S500 and Mercedes S600 Sedans.

1992 S500 coolant leak

Old Aug 11, 2006 | 10:49 AM
  #1  
everlyne's Avatar
Thread Starter
Joined: Dec 2004
Posts: 36
From:
Default 1992 S500 coolant leak

Car model, 1992 S500 W140

Recently power steering fluid leak behind the reservoir. This is followed by coolent leak from the middle section of the engine. After opening the under cover I saw a number of leaks. The coolant, Power steering fluid and steering box. Appreciate you guys advise where to start. Wounder where can I get workshop manual.

Thanks.


 
Old Aug 12, 2006 | 12:51 AM
  #2  
everlyne's Avatar
Thread Starter
Joined: Dec 2004
Posts: 36
From:
Default RE: 1992 S500 coolant leak

I have notice the coolant leak is right below the water pump. Can anyone tell me how do I check if it is the water pump leaking or just the hoses connecting to the water pump. Appreciate your help.
 
Old Sep 8, 2006 | 08:26 AM
  #3  
everlyne's Avatar
Thread Starter
Joined: Dec 2004
Posts: 36
From:
Default RE: 1992 S500 coolant leak

The coolant leak only when the engine is warm (ie at normal operating temperature). Any ideas. Is there any internal seal? Where could the leak be?
 
Old Sep 8, 2006 | 08:56 AM
  #4  
97dmsrS420's Avatar
Senior Member
Joined: Feb 2005
Posts: 426
From: N. Carolina
Default RE: 1992 S500 coolant leak

You can do a Search on this site, and you will find where you can get a WorkShop Manual. Good luck.
 
Old Sep 10, 2006 | 06:18 AM
  #5  
everlyne's Avatar
Thread Starter
Joined: Dec 2004
Posts: 36
From:
Default RE: 1992 S500 coolant leak

There is a small hose connecting from underneath the water pump and the small hose runs downward connected to a black plastic box at the lower side of the engine. The coolant was leaking from the black plastic box. What is the purposes of this box. Is there a DIY showing how to change this small hose? What else do I need to look out for? Appreciate your help.
 
Old Sep 13, 2006 | 08:15 AM
  #6  
everlyne's Avatar
Thread Starter
Joined: Dec 2004
Posts: 36
From:
Default RE: 1992 S500 coolant leak

Searching through the site confirm the water pump seal is leaking and therefore coolant leak through the weep hole. Someone mentioned the seal can be replaced BUT it is better to change the whole water pump.
That all folks.
 
Old Sep 13, 2006 | 11:55 AM
  #7  
97dmsrS420's Avatar
Senior Member
Joined: Feb 2005
Posts: 426
From: N. Carolina
Default RE: 1992 S500 coolant leak

There ya go....[:@]
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
JERSEYSURFER
Mercedes E Class
4
Oct 2, 2008 01:03 PM
hennesseystealth
Mercedes S Class
10
Mar 4, 2007 02:13 PM
Randy
General Tech
3
Mar 15, 2004 12:36 AM
rostov
Mercedes E Class
0
Jan 8, 2004 08:19 PM
teeman
Mercedes M Class
2
Dec 11, 2003 09:34 AM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 03:29 PM.