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 ShopForum > Technical Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 08-14-2001, 09:35 PM
Registered User
Join Date: Dec 2000
Posts: 17
Exclamation Overheating - Help!

Hello fellow Benzies,
After Removing my injection pump to fix oil leaks, I find that my car is overheating after running awhile.
Main fan is only spinning at belt speed. With air conditioning on, the small front fan is not coming on.
Does the car have another problem or could it be related to my injection pump R & R.

Thanks fellows.
1987 300TDT 170,000 Miles
1987 300TDT 165K MILES
Reply With Quote
Old 08-15-2001, 10:16 AM
Ali Al-Chalabi's Avatar
Senior Member
Join Date: Nov 2000
Location: Knoxville, TN
Posts: 1,837
Is the car overheating at idle or while driving and just how hot is it getting?
The main fan should be spinning as fast as it can at around 95-100C. There will be a noticeable difference in airflow, especially when the engine is revved if it is working properly. If not, the fan clutch needs to be replaced.

As far as the auxiliary fan, it should come on at low speed with the air conditioner on when the air co pressure gets to a certain limit. The fan should come on high when the coolant temp hits 107C.
Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record
Reply With Quote
Old 08-15-2001, 04:38 PM
Registered User
Join Date: Jun 2000
Location: Saugus, CA USA
Posts: 2,006
My guess is that when fooling around under the hood you knocked a connector loose or broke a wire to the aux fan. All the wiring is designed to be reliefed against vibration, not hands.

I was wondering about the pump timing. Gassers get hot if its wrong, diesels might too.
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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Overheating, with no leaks and no thermostat PDeputy Tech Help 9 08-13-2004 07:53 PM
1997 C36, W202 Chassis, overheating, or normal? kameraguy Tech Help 7 10-03-2003 06:49 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
600 SL overheating? jchenryaia SL Forum 4 12-18-2001 11:43 PM

All times are GMT -4. The time now is 10:28 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page