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 09-06-2001, 04:24 PM
Registered User
Join Date: Jul 2001
Location: Kingston, Ont.
Posts: 201
"winterizing" tips for the a/c

Notwithstanding the weather in Texas or Florida, the approaching Fall means less and less a/c use. Anyone know of some good off-season preparations and procedures for a/c (on the 300e in particular); should one run the a/c once a month, even in sub zero weather, just to keep everything 'normal' etc? or alternatively, should one literally disconnect the ac in order to not even activate it accidentally during the off-season?
Reply With Quote
Old 09-06-2001, 04:44 PM
jsmith's Avatar
Join Date: Aug 2001
Location: At Sea
Posts: 1,729
most modern cars use the a/c to dehumidify air in the winter, otherwise your windshield & windows would fog up if you just blew warm wet air at it.
Reply With Quote
Old 09-06-2001, 06:14 PM
engatwork's Avatar
Join Date: May 2000
Location: Soperton, Ga. USA
Posts: 11,877
Run it at least once/week and this should be accomplished whenever you operate in defroast mode.
Reply With Quote
Old 09-07-2001, 12:09 AM
Registered User
Join Date: Jun 1999
Location: Surrey, Beautiful British Columbia, Canada
Posts: 750
i have always wondered about the use of a/c to clear up
windows during the winter months.

what was changed? my old cars do not require a/c operation.
Reply With Quote
Old 09-07-2001, 01:49 AM
jbaj007's Avatar
Registered User
Join Date: Jun 2001
Location: Santa Monica, CA
Posts: 2,053
The airco air is dehumidified by the temp. drop. That's why many high end compressed air systems use a refrigerant dehumidifier as well as a dessicant (medical/dental systems come to mind). This dehumidified air defrosts by "drying" the glass because of it's lower relative humidity. Hot air works by raising the "dew point" of the glass above the temp. that moisture will condense, relative to it's % humidity. It makes sense if you say it really fast.
The Golden Rule

1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)

Last edited by jbaj007; 09-07-2001 at 02:23 AM.
Reply With Quote
Old 09-07-2001, 10:47 AM
Registered User
Join Date: Jun 1999
Location: Surrey, Beautiful British Columbia, Canada
Posts: 750
gee, thanks! golden rule
Reply With Quote
Old 09-08-2001, 07:24 AM
Robert W. Roe's Avatar
Registered User
Join Date: May 1999
Location: Lehigh Valley PA
Posts: 1,322
The old GM systems used to recommend running the AC once a week to keep the seals sealed, or something like that. I still try to do it at least once a week, just because it's cheap PM.
Bob Roe
Lehigh Valley PA USA
73 Olds 88, 72 MB 280SE, 78 Datsun 280Z, 71 T-Bird, 72 Olds 88, 83 Nissan Sentra, 85 Sentra, 73 230.6, 91 Integra, 83 300SD, 91 Volvo 940GLE wagon, 84 300SD, 95 Subaru Legacy L wagon, 02 Mountaineer, 91 300TE, 08 Murano, 2007 R320CDI 4Matic 52K, some Hyundai, 2008 BMW 535xi wagon all gone... currently
2007 Honda Odyssey Touring, 2011 Honda Odyssey Touring
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
Winters over and A/C season begins pdxman Diesel Discussion 7 03-13-2004 01:38 PM
91 300SEL - Idle drops when A/C is on Mike Murrell Tech Help 2 09-05-2003 08:27 AM
'84 300SD W126 - A/C Question - the saga continues bodyart27 Diesel Discussion 13 06-23-2003 05:32 PM
TIps to save A/C system 95E320cab Tech Help 9 05-05-2003 05:01 PM
Bad odor from A/C and Refrigerant leakage Holson Adi Tech Help 5 01-17-2003 02:00 PM

All times are GMT -4. The time now is 06:02 PM.

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