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
  #1  
Old 09-08-2003, 04:29 PM
Registered User
 
Join Date: Apr 2003
Posts: 12
w124 300e blower fan doesn't work. help!

I have a 1991 300e. after my last service, my fan only works sometimes.

Sometimes it'll work right when i start the car, sometimes randomly starts after 15 min of driving.

sometimes it doens't work at all during a given day.

All fuses are fine, including the blower fuse

Some of the things i noticed is:

when the fan doesn't work, the control buttons like fan speed and blow options don't light up. Also the circulate fan red led doesn't turn on when i hit the switch.

My mechanic thinks it's the blower regulator. but how could it all of a sudden starting having this problem after last service. Makes me think something was messed up on the last service or something.

Let me know if you guys have any ideas. thanks

Last edited by whair; 09-08-2003 at 07:35 PM.
Reply With Quote
  #2  
Old 09-09-2003, 09:10 PM
THEDADLORD's Avatar
Registered User
 
Join Date: Sep 2003
Location: far western burbs Chgo
Posts: 23
Blower fan on the fritz

I'm not an expert, but I had a similar problem with (2) 300e's and (3) 190E's that I've owned. The way you described it, sounds like the climate control module is failing. This is the push button control unit and it has a microprocessor inside. The processor (computer) nearly always fails over time.

It's not user repairable. But you can find good used ones from Potomac German Auto in Maryland or Silver Star Recycling. Any large bone yard with Mercedes parts will have one or can locate it for you.

Best Regards,
William
Reply With Quote
  #3  
Old 09-09-2003, 09:30 PM
Registered User
 
Join Date: Jul 2003
Location: Montreal, Quebec
Posts: 508
You probably have already checked this, but just in case.....
On top of the left shock tower, there is an in-line fuse inside a plastic cover. The fuse is a flat piece of metal held in place by 2 screws.
I had a similar problem a few years ago and the dealer wanted to replace the computer/control unit. The mechanic already had the part in his hand, ready to replace it when a second mechanic told him to check the fuse.
Problem solved, I save a bundle.
JackD
Reply With Quote
  #4  
Old 09-10-2003, 12:15 PM
Registered User
 
Join Date: Apr 2003
Posts: 12
hey guys,

Fused was checked and replace anyways. it turns out it as the control unit. I had to buy a refubished one. although i guess going to a junkyard may have been alot more cheaper.
Reply With Quote
  #5  
Old 09-12-2003, 01:23 PM
Registered User
 
Join Date: Dec 2000
Location: Warminster, PA
Posts: 24
what /where control unit?

You know where control unit is located, is that the chip itself?
__________________
Edgar
Warminster, PA
Reply With Quote
  #6  
Old 09-12-2003, 01:33 PM
Registered User
 
Join Date: Apr 2003
Posts: 12
the control unit is the whole box with the push buttons. i believe the chip is inside.
Reply With Quote
  #7  
Old 09-12-2003, 05:55 PM
THEDADLORD's Avatar
Registered User
 
Join Date: Sep 2003
Location: far western burbs Chgo
Posts: 23
Blower fan on the fritz

WHAIR,

F.Y.I. I bought a functioning blower module on eBay last year for $32.00 + shipping. You might want to keep an eye on those auctions. You can find a bargain sometimes.

Be careful when removing the module, it's easy to damage the wood veneer trim.

William
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




All times are GMT -4. The time now is 02:38 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