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Thread: Heat help

  1. #1
    Join Date
    Nov 2005
    Posts
    6

    Default Heat help

    Seems that when I turn the heat on, I get hot air out of the drivers side ducts BUT the passenger and rear blow cold.

    Any ideas??
    John

  2. #2
    Join Date
    Jul 2006
    Location
    El Paso TX
    Posts
    1,534

    Default

    rear should be cold... no heat on it

    PAssenger??? control unit or bad valve maybe?

  3. #3
    Join Date
    Sep 2005
    Location
    Goulburn Australia
    Posts
    689

    Default

    Could be a vent problem. I had a vent problem similar to this with the old E12. Others are probably more knowleable but it could be the temp control on the passenger side. I'd do a search.
    Cheers

    Wingman
    '89 525i/A Exec 193000kms
    '94 Subaru Liberty AWD Wagon
    Looking for Merc 300TE
    NSW, Australia

  4. #4
    Join Date
    Nov 2005
    Posts
    6

    Default

    After further study, there is heat at the passenger side vents just not to the back. As for the heater valve, it seems to be working as both output hoses get hot when I turn the heat on.

    Why would the back be cold?

  5. #5
    Join Date
    Mar 2006
    Location
    Derbyshire, UK
    Posts
    872

    Default

    Heat for the rear comes up from the vents under the front seats. The vent at the rear of the console is so the rear passengers get fresh air. It's equivalent to the fresh air vent on top of the dash for the folks in front.

    1997 535i V8
    5spd, OBC, A/C, cruise, BMW phone, factory M-Tech wheel & suspension, 18" Alpinas

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