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W210 grabbing keyfob

Discussion in 'Electrics, Vacuum, Ignition and ECU' started by bigtwin, Nov 27, 2012.

  1. bigtwin

    bigtwin Banned

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    Can't see anything really similar in the search world.

    Couple of weeks ago, the fob started turning in the ignition beyond the normal range, i.e. the central rotating barrel was traveling further round than normal. It was a fiddle get the key to release too.

    Sprayed some lube in there, and it seemed to sort itself out.

    Now however, you have a "jiggle" the fob to get it in, and again to get it out, even after the lock whirring thing's made the let go noise - it's not grabbing and releasing cleanly. Other than that, everything is working fine.

    The garage had a squint, said they couldn't find anything wrong, and that a new ignition unit from MB was about £3.79million, so I'd rather not go down that route. On the other hand, obviously I don't want to get stuck somewhere when/if it finally throws a wobbly.

    Checked inner lock ring - tight.
    Does it with both fobs, so not battery prob with fob.
    Car battery fine.

    Any ideas?
     
  2. toby1

    toby1 Senior Member

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    Your Mercedes:
    1998 CL420 C140
    Possibly not the same issue but in my 3 years of owning mine I've had the key not release from the ignition 3 times. The first two times I was none the wiser as to why. I just left it a while or drove round the block and all was well.

    On the third occasion I noticed I hadn't put the gear lever into P properly. A minor push to make sure it was in P and then the key released ok.

    May not be your issue but worth a check and it costs nothing
     
    Last edited: Nov 27, 2012
  3. Frontstep

    Frontstep Senior Member

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    Your Mercedes:
    T210 320cdi
    Had the same as above cleaned out with some alcohol and cotton buds.
     
  4. OP
    bigtwin

    bigtwin Banned

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    Ah. Worth a go.

    Done.

    Now. What did you do to the car?

    More seriously, thanks - will give it a go in the morning.
     

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