W210 boot locked and won't open

Discussion in 'Bodywork' started by IanSpencer, Jan 29, 2020.

  1. IanSpencer

    IanSpencer New Member

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    Hi everyone,
    Over the weekend I was fitting reversing sensors to my W210 (1999 E240) which involved removing all the trim from the boot (carpet and the black plastic around the boot lip) in order to mount the "control unit"
    Once the sensors had been tested I put all the trim back and shut the boot, thinking it was "job well done"
    However, I now can no longer open the boot :(
    I have tried using the "blipper", and the release button by the gear selector. I have also tried using the mechanical key which refuses to turn in either direction (even after a good squirt of WD40 into the lock). All the other central locking is working fine.

    Does anyone have any suggestions before I resort to having the lock drilled out and replaced (which feels like it will be expensive :( )
     
  2. greenmanslk

    greenmanslk Hardcore MB Enthusiast

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    Does the car have an internal boot release button?
     
  3. John N

    John N Hardcore MB Enthusiast

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    I have tried using the "blipper", and the release button by the gear selector. :rolleyes:
     
  4. greenmanslk

    greenmanslk Hardcore MB Enthusiast

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    OOps - I missed you had already stated that.

    Sorry- off for more caffeine....
     
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  5. noogieman

    noogieman Hardcore MB Enthusiast

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    This is one solution.

    Do you have the rear seat backrest unlocked?
    You can go through the rear door, fold down the backrest, and unscrew latches which holds the boot locked.
    You have to pull off small plastic covers to unscrew nuts.

    Don't forget the flashlight, it's dark inside
     
  6. mersum1es

    mersum1es Hardcore MB Enthusiast

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    saloon? Under rear seat are yellow air lines, check which are going rear, huffing and puffing (ok, use compressor) will release pneumatic lock.
     
  7. greenmanslk

    greenmanslk Hardcore MB Enthusiast

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    Or something like a rag has caught on the latch....
     
  8. Pontoneer

    Pontoneer MB Club Veteran

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    If all else fails , before you drill out the lock ( which will be expensive to replace with one to match your keys - only available from the dealer ) your best last resort would be to source a secondhand tail light complete unit , then smash one of yours in to gain access into the boot - this will be cheaper than a new lock .
     
  9. a111r

    a111r Hardcore MB Enthusiast

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    I'd keep at it with un-seizing the mechanical lock. You'll need it to work properly sometime hence.
     
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  10. Pontoneer

    Pontoneer MB Club Veteran

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    Yes , I’d flush it out with penetrating oil , something like Plus Gas , keep trying to jiggle the key . Once cleaned out , I’d blow through compressed air , then lubricate with proper graphite lock lubricant.

    But if all that fails , breaking in through one of the tail light clusters is the next best way since the unit can be cheaply replaced . Cheaper to fix than a new lock and potentially damaged bootlid .
     
    a111r likes this.
  11. noogieman

    noogieman Hardcore MB Enthusiast

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    Don't forget to buy the plastic cap for lock keeping crap away.
     
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  12. Erfan

    Erfan Hardcore MB Enthusiast

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    As mersum1 says

    Have used this a few times...and it worked
     
  13. Erfan

    Erfan Hardcore MB Enthusiast

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    Be gentle when pulling the hoses out.. you don't want to snap the grey connectors
     

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