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

Reply
 
LinkBack Thread Tools Display Modes
  #16  
Old 05-11-2001, 02:13 PM
Registered User
 
Join Date: Mar 2000
Location: Dallas, Texas
Posts: 218
Jim,

Yes, the resistor looks like a coil. The temp sensor I'm speaking of is the blue one on the head. On the M103 engine it's located just under the air cleaner. My understanding of the fans is that they kick in a low speed, then a higher speed when warmer. Mine do just the opposite, so I assume I hooked something up backward. It doesn't make sense to me either. My mechanic said (when in for the head gasket) said the freon is fine.
I'm doing a road trip this afternoon, so I won't tear into it until the weekend...
__________________
R Talley
88 BMW E32 735i (make it go away)
95 Volvo 960 "Inga" (valve problems)
95 Nissan Maxima (the indestructible)
89 Ford Ranger XLT (ugliest truck in the South)
Reply With Quote
  #17  
Old 05-11-2001, 06:42 PM
JimF's Avatar
'94 S500: only 793 sold!
 
Join Date: Mar 2001
Location: San Diego, CA
Posts: 1,925
Understand!

Ok, all's clear.

On my car, have two coils (about 0.2 ohms) and a three (3) speed system. Two relays short the coils out for HIGH speed.

Yours is similar but just two speeds. You must have wired the resistor in backwards. So most likely, you need to reverse the wires going to the resistor.
__________________
Regards . . . . JimF
-------------------
'94 S500 Cpe

Visit my Mercedes Web Page
Reply With Quote
  #18  
Old 05-11-2001, 08:21 PM
Registered User
 
Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,777
If you suspect incorrect wiring from resistor change, simply jumper high pressure switch at drier w/ac on and you should have LOW speed fan.

Purposely do this with engine temp cool so you are not mis-diagnosing engine temp switch.
Reply With Quote
  #19  
Old 05-14-2001, 02:15 PM
Registered User
 
Join Date: Mar 2000
Location: Dallas, Texas
Posts: 218
SUCCESS! After getting tired of that heating thing, I decided to see how hard the fans are to replace. Taking them out was pretty easy, and to discover that the drivers side fan was UNPLUGGED. I did the obvious, put them back together, and POOF---cooling. We drove the car around town that evening with the A/C on and it never got over halfway between 80 and 100 - about 90 I guess . I switched the wires coming off the drier, and it kicks in at 2 speeds. So, the problem is resolved. Thanks for ALL the suggestions and ideas.
I have totalled 2 cars in the last 1.5 years in hit/runs. I was driving on a two lane road, a semi passed going the opposite direction. A fairly sizeable rock or tool flew off and landed on my windshield. Glass landed in our laps (just small shards). After a moment of shock, we turned around and chased the truck...got all the numbers off of it and turned it over to insurance. The windshield is ruined as well as the trim above it. Just the luck...
__________________
R Talley
88 BMW E32 735i (make it go away)
95 Volvo 960 "Inga" (valve problems)
95 Nissan Maxima (the indestructible)
89 Ford Ranger XLT (ugliest truck in the South)
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
1991 300e A/C question zander300e Tech Help 11 06-17-2003 09:20 AM
86' 300E A/C decides to quit - please help JFAZ Tech Help 5 11-20-2002 01:54 AM
300E a/c blower controlled by a new switch on dash asiamood Tech Help 2 11-17-2002 02:21 AM
Crazy A/C in 300E Mark 1004 Tech Help 2 07-19-2002 04:26 PM
C220 A/C fans chandrab Tech Help 2 05-02-2000 09:56 PM



All times are GMT -4. The time now is 01:25 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, 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