S-Class (W140) 1991-1999: 300 SD, S 350TD, 300 SE 2.8, S280, 300 SE 3.2, 300 SEL 3.2, S320, S320L, 400 SE, S420, 400 SEL, S420L, 500 SE, S500, 500 SEL, S500L, 600 SE, S600, 600 SEL, S600L, 500 SEC, 600 SEC

500 sel ac issue

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old May 28, 2012 | 03:43 PM
  #1  
GElite's Avatar
Thread Starter
Newbie
 
Joined: May 2012
Posts: 4
Likes: 0
1993 SEL500
500 sel ac issue

Hello All, So im having some problems with my ac in my 1993 SEL500. I dont know what chassis it is but the vin is WDBGA51E9PA086527. The other day the AC quit working on me. When you turn it on the compressor kicks on for just a second and then goes back off. Took it to a local shop and of course they dont know jack about mercedes, all they could tell me for sure was that its full of refridgerant. I dont even know where to begin on this car. Ive always shyed away from working on it but no one here knows anything about the car and I just cant afford to put in the shop at the dealership. If its something simpleish im more than capable its just diagnosing it at this point. Im not at all scared to work on cars, hell I went to school for auto repair for two years but this isnt a cat, its a spaceship!lol. Less technology went into the lunar landings........Anyway can somebody point me in the right direction? I was thinking about running a hot wire to the compressor clutch to see if it will run like that so I can verify that the system will or will not produce cold air. Also my windshield wipers sometimes work, and sometimes they dont. Would love to fix that little issue while im at it. Thank
Reply
Old May 31, 2012 | 09:21 AM
  #2  
GElite's Avatar
Thread Starter
Newbie
 
Joined: May 2012
Posts: 4
Likes: 0
1993 SEL500
Well I straight wired the ac clutch and it kicked on and blew cold so I know the system is functioning but of course I don't want to run it like that. I just need some help diagnosing the problem. Like I said its full of refrigerant and blows cold. What could possibly be the problem. Clearly it's some type of pretection circuitry. What systems are in place that would shut the ac compressor down? Any help would be greatly appreciated. Thanks
Reply
Old May 31, 2012 | 10:44 AM
  #3  
oldsinner111's Avatar
MBWorld Fanatic!
 
Joined: Jun 2010
Posts: 1,246
Likes: 52
From: tennessee
s320
sounds like a bad relay.where its at I don't know
Reply
Old Jun 1, 2012 | 04:16 PM
  #4  
GElite's Avatar
Thread Starter
Newbie
 
Joined: May 2012
Posts: 4
Likes: 0
1993 SEL500
Wow I figured sombody Here would know something about these cars. I think I'm just gonna sell it. Nobody knows anything about it and no one will point me in the right direction. https://m.facebook.com/home.php?refi...00000474874738
I'm pretty sure it's a 140 chassis but I can't be sure cause the plate on the radiator only has numbers no words but one of the numbers is 140 so I'm not sure.
Reply
Old Jun 2, 2012 | 07:09 AM
  #5  
oldsinner111's Avatar
MBWorld Fanatic!
 
Joined: Jun 2010
Posts: 1,246
Likes: 52
From: tennessee
s320
Give me time to research it
In the meantime join the Peach Part forum.
Reply
Old Jun 2, 2012 | 08:55 AM
  #6  
GElite's Avatar
Thread Starter
Newbie
 
Joined: May 2012
Posts: 4
Likes: 0
1993 SEL500
Peach part forum????
Reply
Old Jun 2, 2012 | 09:50 AM
  #7  
oldsinner111's Avatar
MBWorld Fanatic!
 
Joined: Jun 2010
Posts: 1,246
Likes: 52
From: tennessee
s320
search on peachparts forum. Its a mercedes forum
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 12:34 AM.

story-0
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

Slideshow: Six gift ideas your AMG loving dad or grad will cherish.

By | 2026-06-03 17:26:18


VIEW MORE
story-1
7 Craziest Things AMG Gas Ever Built

Slideshow: Sometimes AMG builds fast sedans. Other times, it builds twin-turbo V12 land missiles and six-wheeled off-road monsters.

By Verdad Gallardo | 2026-05-26 17:59:58


VIEW MORE
story-2
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-3
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-4
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-5
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-6
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-7
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-8
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-9
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE