W211 heater booster

Discussion in 'Parts, Maintenance & Servicing' started by Cj320cdi, Jan 21, 2020.

  1. Cj320cdi

    Cj320cdi Hardcore MB Enthusiast

    Messages:
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    Joined:
    May 5, 2018
    Location:
    Notts
    Car:
    320 cdi 2003
    Well I definitely have the symptoms of a defective heater booster with the air blowing full power after approx 10-20 secs stone cold on start up.... but I’m just wanting to find out if the booster is behind the dash on the early w211 ? Mine is the 2003 model.....
     
  2. mersum1es

    mersum1es Hardcore MB Enthusiast

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    Finland
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    yep inside air duct... need to remove whole dashboard
     
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  3. saff

    saff Hardcore MB Enthusiast

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    Do you mean the fan/motor assembly? If so reasonably easy to get to by removing panel under glovebox. See Youtube.
     
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  4. OP
    OP
    Cj320cdi

    Cj320cdi Hardcore MB Enthusiast

    Messages:
    251
    Joined:
    May 5, 2018
    Location:
    Notts
    Car:
    320 cdi 2003
    The fan and functions work fine it’s just on 1st start up when the air blows out on full after a few secs there’s no hot air where the booster come s on, just cold air now.... so sounds like the dash is coming out lol and I’ve watched a YouTube clip on how to and doesn’t look too bad just have to be careful with the air bag plugs....
     

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