Mercedes SLK Class All Mercedes SLK Roadsters.

air conditioning fan issue

  #1  
Old 11-30-2015, 02:59 AM
Senior Member
Thread Starter
Join Date: Jun 2007
Location: heaven on earth, the s. Oregon coast
Posts: 756
Default air conditioning fan issue

170 slk. I was having an intermittent fan, sometimes it would work fine other times not. first it wouldn't run, after a few minutes more or less it would come on again and be fine till the next time I jumped in the car and fired her up. I replaced the resistor on the motor and so far no problems. Two Phillips screws holds the panel in place just under the glove box. find a couple vent holes in the panel to put your fingers into and push toward the front of car, then pull down, pull towards rear. the blower box has a couple slide clips. you'll need a, I believe, a #20 torx to remove the resistor. on re-installing, there are two clips toward the front of the car on the panel attached below the glove box. those need to be put into the slots for them under the dash. having a mirror helps the whole process. resistor varies in price from around $25 to $125. I paid $29 and it looked the same as the old one. my F150 just had the same problem. might be interesting if mercedes put their twist on a f150 and put their name on it. the 150 is a great base for a merc truck.
 

Last edited by brookings; 04-18-2017 at 02:17 PM.
  #2  
Old 04-22-2016, 11:45 PM
Junior Member
Join Date: Apr 2016
Location: Tecumseh, Ok.
Posts: 3
Default

same problem; fan brushes sometimes don't make contact with brush holder; noticed armature? had some wear on it; so just changed complete motor; aftermarket WAY less than $100, now ok; also got new resister on it, but DON'T think it needed it; keep for spare; hope this helps, Steve
 
  #3  
Old 04-23-2016, 04:07 PM
Senior Member
Thread Starter
Join Date: Jun 2007
Location: heaven on earth, the s. Oregon coast
Posts: 756
Default

I forgot to mention on mine the higher speeds worked ok, indicating the motor was ok. looking at the resistor you could see where it was loosing continuity. the finish was lifted like rust under paint on one of the printed circuits
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
AlyssaAshley
Mercedes E Class
2
08-01-2011 07:41 PM
fraguada1
Mercedes CLK Class
0
05-18-2009 12:39 PM
Fat Tony
Mercedes C Class
2
04-29-2008 08:33 AM
tmackin
Mercedes SL Class
3
05-21-2006 03:32 AM
pseverin
General Tech
12
07-08-2004 03:25 AM


Thread Tools
Search this Thread
Quick Reply: air conditioning fan issue


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.