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S-class w221 keyless car opens when locked from the outside

Discussion in 'Electrics, Vacuum, Ignition and ECU' started by firestormxtreme, Nov 21, 2016.

  1. firestormxtreme

    firestormxtreme New Member

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    Your Mercedes:
    s class w221 s320
    Hi i have an issue with my car, its a 2006 s class with keyless go and keyless entry, all the locks and handles for keyless entry and locking work fine as in latches open and close but the issue is that once the car is closed and the key is not nearby the doors still open from the outside even though the latches are still down.

    There seems to be no resistance for the outside handles and the door opens as if the car is unlocked. If i do the same from the inside when the car is locked there is resistance and the latch raises before the door opens.

    Noticed this issue as someone went through my car and when i went to check it the doors were opening even though the car was locked

    Does anyone know what the issue is as i would like to get this fixed asap
     
  2. alexanderfoti

    alexanderfoti MBO Forum Supporter Authorised Forum Supporter

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    That is odd.

    Does it do this on all 4 doors?
     
  3. Flyinspanner

    Flyinspanner Senior Member

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    Did you have the keyless card in your wallet/pocket......
     
  4. alexanderfoti

    alexanderfoti MBO Forum Supporter Authorised Forum Supporter

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    W221 S65 AMG - W204 C63 AMG + Various other MB's
    No card on the 221.
     
  5. television

    television Always remembered RIP

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    Never heard of this, if the buttons are down the car should be locked. How far away is the key.

    Just out of curiosity change the locking by pressing the lock and unlock buttons on the key till the led flashes, the will change the locking to drivers door only on the first press and the whole car on the second.

    What I am thinking now is, there could be a spare key under a seat, this could upset the system.
     
  6. OP
    firestormxtreme

    firestormxtreme New Member

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    No one of the rear passenger doors does not open the other 3 do
     
  7. OP
    firestormxtreme

    firestormxtreme New Member

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    The key was left in the house to test it out, so it was no where near the car.

    I will try changing the locking to drivers door only and see what that does

    The car only came with the one key so it is a possibility that a spare key could be in the car but the latches should not go down if the key is in the car
     
  8. alexanderfoti

    alexanderfoti MBO Forum Supporter Authorised Forum Supporter

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    When you pull the door handle that does not open, does the dash light up with a message?
     
  9. OP
    firestormxtreme

    firestormxtreme New Member

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    Yes it lights up saying key not detected, all the other doors just open and the alarm goes off
     
  10. alexanderfoti

    alexanderfoti MBO Forum Supporter Authorised Forum Supporter

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    I would say the 3 doors that open, have a fault with their locks, either a mechanical fault, or electrical (sounds mechanical).

    Is there any evidence that the doors have been opened up (door cards off etc?)
     
  11. OP
    firestormxtreme

    firestormxtreme New Member

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    There are no obvious signs no, im going to try and take them off to see what the issue is, it feels like something is suppose to release when the doors lock but on my car they are stuck in place

    Is it easy to take the door cards off
     
  12. alexanderfoti

    alexanderfoti MBO Forum Supporter Authorised Forum Supporter

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    Not sure, I haven't had to take them off on mine, can't be that hard though.

    Make sure you have a few of the plastic rivets as some always break.
     
  13. television

    television Always remembered RIP

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    I have the same locks on my car, and there are some 16 updates.

    Just spoken to my friend who had a 221 new, we had to have 3 new locks fitted while under guarantee.
     
  14. television

    television Always remembered RIP

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    You cannot even see the door locks with the door liner off, they are behind the glass, and the windows have to come out to get to the locks.
     
  15. alexanderfoti

    alexanderfoti MBO Forum Supporter Authorised Forum Supporter

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  16. television

    television Always remembered RIP

    Messages:
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    I have a faulty lock Alex, but I have left it for the last 4½ years.


    This is an odd fault, and so much work.
     
  17. alexanderfoti

    alexanderfoti MBO Forum Supporter Authorised Forum Supporter

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    I just went out and checked all mine, as I had a thought. I wouldn't know if they where broken! Luckily all working.
     
  18. television

    television Always remembered RIP

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    Your Mercedes:
    2002 SL500, 216 CL500, all fully loaded
    This tells me that they had some problems.
    010

    A 2217202335
    LOCK
    LEFT
    Repalced by: A 2217204335
    010

    A 2217204335
    DOOR LOCK
    LEFT
    010

    A 2217202435
    LOCK
    RIGHT
    Repalced by: A 2217204435
    010

    A 2217204435
    DOOR LOCK
    RIGHT
    010

    A 2217200535
    LOCK
    LEFT
    Repalced by: A 2217204735
    010

    A 2217204735
    DOOR LOCK
    LEFT
    Repalced by: A 2217207135
    010

    A 2217207135
    DOOR LOCK
    LEFT
    010

    A 2217200635
    LOCK
    RIGHT
    Repalced by: A 2217204835
    010

    A 2217204835
    DOOR LOCK
    RIGHT
    010

    A 2217200935
    LOCK
    LEFT
    Repalced by: A 2217205135
    010

    A 2217205135
    DOOR LOCK
    LEFT
    010

    A 2217201035
    LOCK
    RIGHT
    Repalced by: A 2217205235
    010

    A 2217205235
    DOOR LOCK
    RIGHT
    010

    A 2217201335
    LOCK
    LEFT
    Repalced by: A 2217205535
    010

    A 2217205535
    DOOR LOCK
    LEFT
    Repalced by: A 2217207535
    010

    A 2217207535
    DOOR LOCK
    LEFT
    010

    A 2217201435
    LOCK
    RIGHT
    Repalced by: A 2217205635
    010

    A 2217205635
    DOOR LOCK
    RIGHT
    Repalced by: A 2217207635
    010

    A 2217207635
    DOOR LOCK
    RIGHT
    010

    A 2217202635
    LOCK
    RIGHT
    Repalced by: A 2217204635
    010

    A 2217204635
    DOOR LOCK
    RIGHT
    010

    A 2217200835
    LOCK
    RIGHT
    Repalced by: A 2217205035
    010

    A 2217205035
    DOOR LOCK
    RIGHT
    Repalced by: A 2217207435
    010

    A 2217207435
    DOOR LOCK
    RIGHT
    010

    A 2217201235
    LOCK
    RIGHT
    Repalced by: A 2217205435
    010

    A 2217205435
    DOOR LOCK
    RIGHT
    010

    A 2217201635
    LOCK
    RIGHT
    Repalced by: A 2217205835
    010

    A 2217205835
    DOOR LOCK
    RIGHT
    Repalced by: A 2217207835
    010

    A 2217207835
    DOOR LOCK
    RIGHT
    010

    A 2217202535
    LOCK
    LEFT
    Repalced by: A 2217204535
    010

    A 2217204535
    DOOR LOCK
    LEFT
    010

    A 2217200735
    LOCK
    LEFT
    Repalced by: A 2217204935
    010

    A 2217204935
    DOOR LOCK
    LEFT
    Repalced by: A 2217207335
    010

    A 2217207335
    DOOR LOCK
    LEFT
    010

    A 2217201135
    LOCK
    LEFT
    Repalced by: A 2217205335
    010

    A 2217205335
    DOOR LOCK
    LEFT
    010

    A 2217201535
    LOCK
    LEFT
    Repalced by: A 2217205735
    010

    A 2217205735
    DOOR LOCK
    LEFT
    Repalced by: A 2217207735
    010

    A 2217207735
    DOOR LOCK
    LEFT
    010

    A 2217202735
    LOCK
    LEFT
    Repalced by: A 2217205935
    010

    A 2217205935
    DOOR LOCK
    LEFT
    010

    A 2217202935
    LOCK
    LEFT
    Repalced by: A 2217206135
    010

    A 2217206135
    DOOR LOCK
    LEFT
    Repalced by: A 2217207935
    010

    A 2217207935
    DOOR LOCK
    LEFT
    010

    A 2217203135
    LOCK
    LEFT
    Repalced by: A 2217206335
    010

    A 2217206335
    DOOR LOCK
    LEFT
    010

    A 2217203335
    LOCK
    LEFT
    Repalced by: A 2217206535
    010

    A 2217206535
    DOOR LOCK
    LEFT
    Repalced by: A 2217208135
    010

    A 2217208135
    DOOR LOCK
    LEFT
    010

    A 2217202835
    LOCK
    RIGHT
    Repalced by: A 2217206035
    010

    A 2217206035
    DOOR LOCK
    RIGHT
    010

    A 2217203035
    LOCK
    RIGHT
    Repalced by: A 2217206235
    010

    A 2217206235
    DOOR LOCK
    RIGHT
    Repalced by: A 2217208035
    010

    A 2217208035
    DOOR LOCK
    RIGHT
    010

    A 2217203235
    LOCK
    RIGHT
    Repalced by: A 2217206435
    010

    A 2217206435
    DOOR LOCK
    RIGHT
    010

    A 2217203435
    LOCK
    RIGHT
    Repalced by: A 2217206635
    010

    A 2217206635
    DOOR LOCK
    RIGHT
    Repalced by: A 2217208235
    010

    A 2217208235
    DOOR LOCK
    RIGHT
     
  19. alexanderfoti

    alexanderfoti MBO Forum Supporter Authorised Forum Supporter

    Messages:
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    W221 S65 AMG - W204 C63 AMG + Various other MB's
    It's not like they had 5 years of development....

    They should have stuck with vac locks. I do miss those. Silent!
     
  20. television

    television Always remembered RIP

    Messages:
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    Just wonderful vac locks :D:D
     

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