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
  #16  
Old 08-18-2015, 06:21 PM
slk230red's Avatar
WECO Installer
 
Join Date: Jul 2006
Location: Tampa, FL
Posts: 820
Quote:
Originally Posted by joe_pau View Post
Well, it's been over 100 the last few days so I didn't get a chance to try anything. But I went out today and started with the basics. I looked at the fuse for the aux fan, first it was the wrong fuse, a white 8 amp. I took it out, and the metal literally fell out of the fuse. I replaced it with a red 16 amp. Turned AC on while idling and the AC seems to do fine at idle. I have to do a test drive to really prove this out.

My question is, when I press the AC switch, should the aux fan turn on immediately? And stay on as long as the AC switch is pressed?

Thanks
No, the aux. fan will only operate when needed either by the aux. fan temp switch, or the high pressure switch on the receiver/drier.

That fuse is the first thing I would have checked, maybe that was your problem having the wrong/defective white fuse. I purchased our '93 190E new and about a year ago I replace every fuse in the car with new ones.

Report back with your test results, you might have just saved yourself some unnecessary expenses.

Good luck

__________________

1993 190E 2.3
2001 SLK230
1971 LS5 (454) Corvette Convertible
Reply With Quote
  #17  
Old 08-18-2015, 07:20 PM
Registered User
 
Join Date: Sep 2012
Location: Bay Area, Northern California
Posts: 49
Quote:
Originally Posted by slk230red View Post
No, the aux. fan will only operate when needed either by the aux. fan temp switch, or the high pressure switch on the receiver/drier.

That fuse is the first thing I would have checked, maybe that was your problem having the wrong/defective white fuse. I purchased our '93 190E new and about a year ago I replace every fuse in the car with new ones.

Report back with your test results, you might have just saved yourself some unnecessary expenses.

Good luck
Interesting! Well, while idling my AC never got warm!! It stayed cool idling at a light and when I pulled over for about 5 to 7 minutes. It definitely was running colder while driving than idling, but not near enough to make it uncomfortable. In fact I could have sworn that while I was pulled over and idling it felt like the AC got a little colder! It could be my wishful thinking too! I expect a 4 cylinder at idle to not cool as well at speed, but is that normal?

Thanks!!!
Reply With Quote
  #18  
Old 08-18-2015, 08:17 PM
slk230red's Avatar
WECO Installer
 
Join Date: Jul 2006
Location: Tampa, FL
Posts: 820
Quote:
Originally Posted by joe_pau View Post
Interesting! Well, while idling my AC never got warm!! It stayed cool idling at a light and when I pulled over for about 5 to 7 minutes. It definitely was running colder while driving than idling, but not near enough to make it uncomfortable. In fact I could have sworn that while I was pulled over and idling it felt like the AC got a little colder! It could be my wishful thinking too! I expect a 4 cylinder at idle to not cool as well at speed, but is that normal?

Thanks!!!
It really depends on the conditions. At idle, do you hear the aux. fan cycling?
Hope you found your problem.
__________________

1993 190E 2.3
2001 SLK230
1971 LS5 (454) Corvette Convertible
Reply With Quote
  #19  
Old 08-19-2015, 12:16 AM
Registered User
 
Join Date: Sep 2012
Location: Bay Area, Northern California
Posts: 49
I've actually watched and heard the fan at idle! So yes to answer your question.
Reply With Quote
  #20  
Old 08-19-2015, 02:29 PM
slk230red's Avatar
WECO Installer
 
Join Date: Jul 2006
Location: Tampa, FL
Posts: 820
Quote:
Originally Posted by joe_pau View Post
I've actually watched and heard the fan at idle! So yes to answer your question.
Great! Thanks for posting your findings, it might help someone else in the future.
__________________

1993 190E 2.3
2001 SLK230
1971 LS5 (454) Corvette Convertible
Reply With Quote
  #21  
Old 08-19-2015, 04:34 PM
Registered User
 
Join Date: Sep 2012
Location: Bay Area, Northern California
Posts: 49
Quote:
Originally Posted by slk230red View Post
Great! Thanks for posting your findings, it might help someone else in the future.
I hope so. Thank you all for your input.
Reply With Quote
  #22  
Old 08-19-2015, 06:29 PM
Registered User
 
Join Date: Aug 2015
Posts: 67
have you checked the resistor for the fan low speed? the fan should come on right after the comp turns on if system is full.
slow speed fan is for a/c
high speed fan is for cooling
check resistor could be bad or maybe even bypassed

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 04:28 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