[W126 Coupe] AC FAN- Related topic

[Ernest Stephens]

Sorry Jay and Axel, my question was meant for Axel.
steve
  ----- Original Message ----- 
  From: Ernest Stephens<mailto:stevetsg at msn.com> 
  To: Mercedes Coupes Mailing Lists<mailto:mbcoupes at mbcoupes.com> 
  Sent: Saturday, August 29, 2009 2:09 PM
  Subject: Re: [W126 Coupe] AC FAN- Related topic


  Jay,
  I recently R&R most of the AC components on my 87 SEC but the only valve that I replaced was the expansion valve (not so much fun).  I converted to R134 and the results are fantastic, I now have great cooling in my very black MB.  Can you tell me where to find the mono valve and if you think it would be wise to replace it at this time.
  Thanks,
  steve
    ----- Original Message ----- 
    From: Axel Wulff<mailto:axelwulff at hotmail.com> 
    To: mbcoupes at mbcoupes.com<mailto:mbcoupes at mbcoupes.com> 
    Sent: Saturday, August 29, 2009 7:42 AM
    Subject: Re: [W126 Coupe] AC FAN- Related topic


    Jay,
     
    I haven't seen your exact symptoms before, but you could have a number of issues, including bad monovalve, failing vacuum valves in the dash, low on refrigerant and failing AC push-button unit.
     
    That you get both hot and cool air at the same time through different vents would indicate that the push-button unit is malfunctioning, but other sources of problems can't be excluded.
     
    How many miles on the car? Any engine cooling issues (i.e. does the engine temp stay below 100)? Are you using R134 or R12 refrigerant? How's the refrigerant level? Have you changed the monovalve, or are you still running the original?
     
    Try setting the temperature wheel to max hot and to max cool and check if the airflow is consistent hot and cold.

    Good luck.

    Regards,
    Axel J. Wulff
    610-731-5453 Cellular
    610-572-4611 Home



     

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    To: mbcoupes at mbcoupes.com
    Date: Fri, 28 Aug 2009 19:43:44 -0400
    From: johnjaykimrey1 at aol.com
    Subject: Re: [W126 Coupe] AC FAN- Related topic


    Hi, 
    My 89 sec with 83K miles is giving me an a/c problem and I need some direction as to where to start looking at the possible fix. It cools fine in the defrost, mid level and lower level for approximately 20  to 30 minutes then inadvertently the lower and windshield(defrost) goes to hot and I mean hot yet the mid level is cooling. I do not have to touch the climate controls to have this to happen. What are the most likely areas to look at. need some help very badly!!! any input is greatly appreciated. 
    Jay Kimrey

    -----Original Message-----
    From: James Huntress <jhuntress at bellsouth.net>
    To: 'Mercedes Coupes Mailing Lists' <mbcoupes at mbcoupes.com>
    Sent: Fri, Aug 28, 2009 4:45 pm
    Subject: Re: [W126 Coupe] AC FAN


    The a/c fan blower fuse is here good luck. I just repaired mine. Jim

    From: mbcoupes-bounces at mbcoupes.com<mailto:mbcoupes-bounces at mbcoupes.com> [mailto:mbcoupes-bounces at mbcoupes.com<mailto:mbcoupes-bounces at mbcoupes.com?>] On Behalf Of kelly frink
    Sent: Friday, August 28, 2009 4:56 PM
    To: Mercedes Coupes Mailing Lists
    Subject: [W126 Coupe] AC FAN

    Hi All 

    My AC fan stoped working today and it`s hot does anyone know if the fuse for the blower Motor is outside the fuse box or not

    'Thanks Kelly
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