Seat belt tensioner noise

Discussion in 'Interior' started by rw.perkins, Apr 16, 2014.

  1. rw.perkins

    rw.perkins Member

    Messages:
    40
    Joined:
    Feb 27, 2014
    Location:
    Norwich, UK
    Car:
    C220 AMG Sport Estate
    Hi everyone.
    On occasions, after I fit my seat belt, and the car automatically tensions it for me, I hear what sounds like an electric motor just behind the right hand side of my head. It runs for perhaps a couple of seconds.

    Is this normal, if so what is it doing? The belt has already tensioned.

    Car is brand new - 2 weeks - C220 CDI AMG Sport Estate.

    I only noticed this in the last few days, and am sure it didn't do it previously. My supplying dealer is 80 miles away, although I have a local Mercedes dealer.

    Appreciate any comments.
     
  2. Auto-mobile

    Auto-mobile Hardcore MB Enthusiast

    Messages:
    1,600
    Joined:
    Oct 1, 2011
    Location:
    Birmingham
    Car:
    2x c43 Amg clio 172 turbo 314bhp
    It's a standard feature, takes the slack out of the belt when you first plug it in.
     
  3. OP
    OP
    rw.perkins

    rw.perkins Member

    Messages:
    40
    Joined:
    Feb 27, 2014
    Location:
    Norwich, UK
    Car:
    C220 AMG Sport Estate
    Yes, I get the feature. Perhaps I wasn't clear. The noise occurs AFTER the belt has been tensioned, perhaps a few seconds after.
     
  4. Kass

    Kass New Member

    Messages:
    2
    Joined:
    Mar 13, 2017
    Car:
    E220
    Hi RW,

    I know it has been a while since this post, but I have recently gotten a 2014 E220 which has exactly the same issue. I never had this with the tensioner in my previous 2011 E200.

    Did you get anywhere with sorting this out?

    Thanks,

    Kass.
     

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