Intermittent Climate Control/Air Conditioning - Mercedes-Benz Forum

 
LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 01-23-2012, 03:46 AM Thread Starter
BenzWorld Newbie
 
Date registered: Mar 2010
Posts: 1
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
Intermittent Climate Control/Air Conditioning

Hi there,

I have a 1999 E320 (petrol) estate/station wagon which has been displaying unusual behaviours from the climate control.....

The fans seem to have a life of their own and their speed/performance bears no relation to the digital fan readout in the climate control unit. An example would be when you need maximum defrost.....the climate control head unit shows the fan speed at full (i.e. all bars) yet, little or no air is emitted from the vents. You will be driving along and then suddenly, the fans burst into life for a minute or so and then shut down or slow down whilst the display shows full power. The same behaviour happens whether you want cold or hot air. The other behaviour is like a pulsing where they will speed up and slow down regularly.

All of these behaviours are completely independent of the what the control unit says.

I have had the a/c recharged and bought a new climate control head unit (from Ebay) - neither of which has solved the problem.

It was suggested to me that the fan resistor pack/unit has failed but wanted to check with this forum first in order to gain advice (and before I buy yet another unnecessary unit )
red_baron is offline  
Sponsored Links
Advertisement
 
post #2 of 2 (permalink) Old 01-23-2012, 09:33 AM
Lifetime Premium Member
 
Musikmann's Avatar
 
Date registered: May 2006
Vehicle: 2001 E320 - Brilliant Silver/Ash: 107,000+
Location: West Virginia, USA
Posts: 17,193
Mentioned: 0 Post(s)
Quoted: 6 Post(s)
Lifetime Premium Member
It might be the blower motor regulator, a common problem. Come join us on the W210 forum (found under the sedans heading) and search for "regulator". Several threads should come up. I think the fan resistor pack/unit is the same thing. Good luck and welcome to BW.

Mercedes Benz - Das beste oder nichts!
Musikmann is offline  
Sponsored Links
Advertisement
 
Reply

  Mercedes-Benz Forum > General Mercedes-Benz Forums > General Mercedes-Benz

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











  • Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
     
    Thread Tools
    Show Printable Version Show Printable Version
    Email this Page Email this Page
    Display Modes
    Linear Mode Linear Mode



    Similar Threads
    Topic Author Forum Replies Last Post
    climate control intermittent dpiswing@aol.com R129 SL-Class 6 07-27-2011 09:55 AM
    Climate control intermittent wrooper W124 E,CE,D,TD Class 3 10-05-2009 02:50 PM
    E300 Climate Control/Air Conditioning WooDooUK W124 E,CE,D,TD Class 1 11-24-2008 10:07 AM
    climate control a/c air conditioning 134a hyoung888888 W126 S,SE,SEC,SEL,SD,SDL Class 5 09-05-2008 02:13 PM
    climate control fan intermittent peyton300td W124 E,CE,D,TD Class 4 08-14-2008 03:43 AM

    Posting Rules  
    You may post new threads
    You may 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 Off
    Trackbacks are On
    Pingbacks are On
    Refbacks are On

     

    Title goes here

    close
    video goes here
    description goes here. Read Full Story
    For the best viewing experience please update your browser to Google Chrome