Key fob sometimes don't work

Discussion in 'E-Class' started by Merc32, Aug 7, 2017.

  1. Merc32

    Merc32 New Member

    My door sometimes don't unlock unless I put my key fob very near to it. My remote sometimes don't work as well when I press any of the button. Battery is new .
     
  2. The issue may be the key. Either the key shell is damaged or the tinny button on the top of the key circuit.
     
  3. vincent krebs

    vincent krebs New Member

    battery new in what ? remote ? or the car ? sometimes if the remote battery was replaced , they need to recode in (on other models I know but unsure on mercs) BUT sometimes it can be fault for the car , cause ............. the remote does not run power to the whole car.
    test/check car battery. when one sends a signal the other also needs to receive .
     

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