MBWorld.org Forums

E-Class (W124) 1984-1995: E 260, E 300, E 320, E 420, E 500 (Includes CE, T, TD models)

Air Con!!

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old May 19, 2004 | 10:28 PM
Share
  #1  
Gman91932's Avatar
Gman91932
Thread Starter
Member
 
Joined: Mar 2002
Posts: 165
Likes: 0
From: Imperial Beach CA
1995 S320 and 1995 S500
Air Con!!
I spent a long time today with my mechanic working on the AC. We got it ti work by supplying outside power to the compresser. We chnaged a relay switch and it worked for a moment. \The mechanic says that the compresser is fine (we also added two cans of Freon) but the compressor is not getting poer either from the inside panel or from under the hood from the relay switch to the compressor.

Has anyone had expierence with this air conditioning problem????
Reply
0
Old May 20, 2004 | 09:26 AM
Share
  #2  
Jer's Avatar
Jer
Super Member
 
Joined: Jun 2003
Posts: 595
Likes: 0
From: Middlefield, CT
1994 E320
When you say "relay switch" are you referring to the black box next to the KE control unit (behind the pass. side firewall)?
Reply
0
Old May 20, 2004 | 10:10 AM
Share
  #3  
Gman91932's Avatar
Gman91932
Thread Starter
Member
 
Joined: Mar 2002
Posts: 165
Likes: 0
From: Imperial Beach CA
1995 S320 and 1995 S500
no this is a silver switch, I see the black tall box in that location and I am thinking that this is the problem...its callede a MAS.
your thoughts?
Reply
0
Old May 20, 2004 | 10:42 AM
Share
  #4  
Jer's Avatar
Jer
Super Member
 
Joined: Jun 2003
Posts: 595
Likes: 0
From: Middlefield, CT
1994 E320
The black box is the "Klima" control unit. It compares the speed of the compressor to the speed of the engine, and if a large difference is detected, the Klima turns off the compressor. It can only be restarted by cycling the ignition key.
Reply
0
Old May 20, 2004 | 11:49 AM
Share
  #5  
Gman91932's Avatar
Gman91932
Thread Starter
Member
 
Joined: Mar 2002
Posts: 165
Likes: 0
From: Imperial Beach CA
1995 S320 and 1995 S500
whats does "cycling the ignition key" mean????
Reply
0
Old May 20, 2004 | 12:12 PM
Share
  #6  
Jer's Avatar
Jer
Super Member
 
Joined: Jun 2003
Posts: 595
Likes: 0
From: Middlefield, CT
1994 E320
Turning the key off, then back on.
Reply
0
Old May 20, 2004 | 05:19 PM
Share
  #7  
Gman91932's Avatar
Gman91932
Thread Starter
Member
 
Joined: Mar 2002
Posts: 165
Likes: 0
From: Imperial Beach CA
1995 S320 and 1995 S500
I replaced the MAS climate control unit...and that was the FIX! We have cold air!

Gman
Reply
0
Tags
Back to Subforum
E-Class (W124)
View Next Unread
Brakes question

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


You have already rated this thread Rating: Thread Rating: 0 votes, average.
Show Printable Version
Email this Page

Advanced Search

All times are GMT -4. The time now is 06:53 PM.

story-0
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-1
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-2
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-3
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-4
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
story-5
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-6
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-7
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE
story-8
Mercedes Teases Updated EQS With Steer-By-Wire and a Yoke

Slideshow: The 2027 update adds a fully digital steering system, revised styling, and potential charging upgrades as the company looks to revive interest in the luxury EV.

By Verdad Gallardo | 2026-04-04 10:24:38


VIEW MORE
story-9
8 Mercedes Models With Poor Reliability Records

Slideshow: From problematic air suspensions to early dual-clutch transmission issues, these specific models and years stand out as the least dependable modern Mercedes vehicles.

By Verdad Gallardo | 2026-03-26 18:08:10


VIEW MORE