Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 08-05-2005, 01:15 AM
Registered User
 
Join Date: Aug 2005
Posts: 1
Overheating

I live in the southwest where it's "hot". Average temps above 110.
My '77 450SL with 95k miles is overheating during my commute from Yuma to Lake Havsu City AZ approx 150miles. I have taken it to several shops in the area non of which are MB dealers. I have had the radiator and thermostat replaced, checked for proper cataletic converter flow and still have this problem. What can I check next?

Thakx
MY450

Reply With Quote
  #2  
Old 08-05-2005, 01:45 AM
carson356
Guest
 
Posts: n/a
does the heater system work properly? i have seen some that are not working, that caused similar issues, would have an air pocket in cooling system
Reply With Quote
  #3  
Old 08-05-2005, 09:00 AM
t walgamuth's Avatar
dieselarchitect
 
Join Date: Apr 2005
Location: Lafayette Indiana
Posts: 38,613
timing

can cause overheating. if it is too retarded. this also would be accompanied by poor power at higher rpm and perhaps backfiring.

tom w
__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.
Reply With Quote
  #4  
Old 08-07-2005, 10:43 PM
pcmaher's Avatar
Big Black V12
 
Join Date: Apr 2003
Location: Chicago, IL
Posts: 430
Does the car have a viscous fan clutch (VFC)? If it's not hooking up properly under hot conditions, that will cause high running temps. The VFC in my 95 S600 spun the fan while hot, but the fan could be stopped very easily with a length of rubber hose. With the engine shut off, I was able to spin the fan too easily. It should have been much stiffer. Once I pulled the old one out, I could see that much of the oil inside the chamber had leaked out. I replaced the VFC, and now run no hotter than 105 C in stop and go traffic with AC on and ambient temps of 100 F. It usually runs around 87-90 C now, where before it shot up to 120 C even when cold outside.
__________________
1995 S600, 1 of 618 (sold)

"Speed is just a question of money...how fast you wanna go?"

LONG LIVE THE W140!
Visit my Web Page at www.v12uberalles.com
Reply With Quote
  #5  
Old 08-08-2005, 10:47 AM
Geezer
 
Join Date: Aug 2000
Location: Holland, MI
Posts: 1,316
Quote:
Originally Posted by my450
I live in the southwest where it's "hot". Average temps above 110.
My '77 450SL with 95k miles is overheating during my commute from Yuma to Lake Havsu City AZ approx 150miles...
What is the temp gauge reading when you are overheating? It might be running hotter, but not actually overheating, at the red line on the gauge.

Best Regards,
Jim

Reply With Quote
Reply

Bookmarks

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Overheating shantibala Diesel Discussion 1 07-15-2005 08:16 AM
Overheating fuel pump of 124 (230E) nav14 Tech Help 0 04-21-2005 02:35 AM
Overheating, with no leaks and no thermostat PDeputy Tech Help 9 08-13-2004 07:53 PM
Overheating??? 1993 190e 2.6 escarbor Tech Help 6 06-25-2002 10:47 PM
95 E320 overheating Jack500 Tech Help 1 05-18-2002 10:36 AM



All times are GMT -4. The time now is 05:59 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page