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Heater de-mister blowers

Discussion in 'Introduce yourself' started by Cally 10, Jan 20, 2020.

  1. Cally 10

    Cally 10 New Member

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    Joined:
    Sep 25, 2019
    Your Mercedes:
    Mercedes 350SL 20056
    Hello fellow Mercedes owners

    I have had a few issues with my 2005 sl350
    Firstly, I had the red battery sign with go to workshop, so I changed the under bonnet battery, firstly disconnecting the neutral on the boot battery, but the red battery and info still showing.
    My blowers for heating and de-misting are not working. Could it be a fuse ??
    Any help or advise please
    Cally
     
  2. Blobcat

    Blobcat Moderator

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    Joined:
    Feb 8, 2006
    Location:
    Near Grange Moor (not Wakefield...)
    Your Mercedes:
    R171 SLK280 3.0, Land Rover 110 County SW
    Hello and welcome

    What condition is the rear battery in?
     
  3. OP
    Cally 10

    Cally 10 New Member

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    Joined:
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    Your Mercedes:
    Mercedes 350SL 20056
    It’s been changed within the last year
     
  4. OP
    Cally 10

    Cally 10 New Member

    Messages:
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    Joined:
    Sep 25, 2019
    Your Mercedes:
    Mercedes 350SL 20056
    The front battery I have just changed was the original battery on the car from new.
    I always get the ‘Convenience Functions not working’ every time I start the engine.
    Is this normal. The car is used every day.
     
  5. OP
    Cally 10

    Cally 10 New Member

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    Joined:
    Sep 25, 2019
    Your Mercedes:
    Mercedes 350SL 20056
    The mileage is genuine 66710
     
  6. LostKiwi

    LostKiwi Senior Member

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    Joined:
    Aug 25, 2006
    Location:
    Midlands / Charente-Maritime
    Your Mercedes:
    '93 500SL-32, '01 W210 Estate E240, 02 R230 SL500 (Malcolm Spec), 04 Smart Roadster Coupe
    No it's not normal and indicates you have a battery drain somewhere on the rear battery. My bet is Comand as it seems prone to drains.
     
  7. rorywquin

    rorywquin Senior Member

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    Joined:
    Dec 28, 2016
    Location:
    North Yorkshire
    Your Mercedes:
    SL400
    Ahhh life was so much simpler in my youth.

    My mother had a racing green Mini Cooper S (yep my dad was nuts - her previous car was an Austin Healy Sprite - for a woman with 4 kids) - the previous owner had fitted a demister which was basically a 12v heating element fitted to the windscreen with suction cups.
     
  8. John Laidlaw

    John Laidlaw Senior Member

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    Joined:
    Nov 15, 2013
    Location:
    Wirral
    Your Mercedes:
    UnMercs BMW i8 Volvo XC90
    As LK not normal and a drain which needs found, meantime (and anyway unless the car is a daily and even then...) get a convenience charger such as Ctek and trickle when not used..
     

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