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

LinkBack Thread Tools Display Modes
Old 04-17-2001, 07:05 AM
Registered User
Join Date: Apr 2001
Location: PA
Posts: 28
Hello All,
It appears that the a/c in my 94 S350 is leaking out the freon. My mechanic suspects the gizmos behind the dash.

Does anyone have any experience with failures of this sort?

Just looking to get some knowledge before calling the dealer.


99 E300D
94 S350D
83 500SEC
Reply With Quote
Old 04-17-2001, 07:15 AM
Registered User
Join Date: Dec 2000
Posts: 368
There are just too many possibilities. You need to recharge it and check for leaks. I've seen evaporators, expansion valves (which is buried under wipers), and compressor seal. Haven't run into condenser problems on these models.
Anyway, get it checked out and hope that it isn't your evaporator. There is a lot of labor involved $$$.

Good Luck,
Reply With Quote
Old 04-17-2001, 07:17 AM
Registered User
Join Date: Apr 2001
Location: PA
Posts: 28
Thanks! My mechanic did recharge it, but it didn't last overnight. My wife heard some hissing from the dash.... so it sounds bad.

Oh well, guess I better make an appointment. I hear something like 20 hours labor to get into the dash....

Thanks again,
Reply With Quote
Old 04-17-2001, 07:36 PM
Registered User
Join Date: May 1999
Location: Charlotte, NC, USA
Posts: 688
Do a search on evaporator replacements for a 140 chassis as this has been covered a lot in the past. This is a common failure on 124 and 140s and now some MLs are also failing.
The 140 is about a 21.8 hour labor and $700 evaporator cost not including a new drier and expansion valve while in there. The 140 from 92 onwards to around 95 were very troublesome in many ways...the reason I unloaded mine!

Good luck,
4 MBs
Reply With Quote
Old 04-17-2001, 08:59 PM
240Joe's Avatar
Registered User
Join Date: Nov 2000
Posts: 525
YIKES....If these hours are true...and I have no reason to doubt the experts...I'd have to say "Design for maintainability" went out the window for MB in the early 90's.

How can any car company design something that takes that long to repair, let alone one with the reputation of MB?

It reminds me of the american cars that took 5 hours to change the spark plugs.

Reply With Quote
Old 04-18-2001, 06:10 AM
Registered User
Join Date: Apr 2001
Location: PA
Posts: 28
Tobias, thanks for the bad news, I think.....

I'll do the evaporator search.

It might be cheaper for me to buy a bunch of freon and charge it up every other day....... (J/K)

Oh well...
Reply With Quote


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

Similar Threads
Thread Thread Starter Forum Replies Last Post
w126 air conditioning problems again SCOTTFISH Tech Help 11 02-08-2011 12:33 AM
1983 Mercedes 300d air conditioning scottlemoine Diesel Discussion 1 07-29-2004 03:43 PM
Air Conditioning System rpb1816 Tech Help 5 06-30-2004 11:00 AM
air conditioning 300duser Tech Help 3 07-09-2003 12:24 PM
Air conditioning - always high and cold/high hot smartin Diesel Discussion 3 04-22-2003 01:13 AM

All times are GMT -4. The time now is 06:33 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page