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2003 Mercedes sl remote key wont open car

The car won't recognise the keys. Fitted new batteries still won't open or turn on ignition..

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  • Alan radzikowski Nov 06, 2012

    The key is coded to the car but the car is not recognising it. it works one day then a few days later it wont...

  • Alan radzikowski Nov 06, 2012

    hi thanks for your comments.. had keys re coded, can open car with manuel key , alarm goes off , put key in ignition it wont turn.then try next day and it works.some one suggested electrical connections in the boot behind battery .Anyone else heard of this..Thanks

  • Anonymous Mar 17, 2014

    Mercedes, how to install new batteries in remote key

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1 Answer

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  • Expert
  • 156 Answers

Get it recoded at dealer

Posted on Nov 06, 2012

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  • 2 Answers

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Posted on Jan 02, 2017

  • 23 Answers

SOURCE: 2003 Mercedes Compressor. Ignition does not

NO RECODING PROCEDURE EXIST FOR THE KEY.REPLACEMENT OF KEY IS ONLY OPTION.

Posted on Aug 08, 2011

elshaddai159
  • 1016 Answers

SOURCE: ignition locked. Key won't turn.

Hi,
Yes when you replaced the batteries in the FOB this will have cleared the system identification for the keys.
So have these reset to your vehicle and then you will have no problems.

Posted on Aug 08, 2011

  • 1 Answer

SOURCE: 2003 mercededes kompressor ignition won't

I came across same problem while getting off work after a 13 hour day... any luck I had mine towed to dealer...

Posted on Nov 24, 2011

emissionwiz
  • 75817 Answers

SOURCE: Hi, I have a suzuki swift 2000 model, the key has snapped in the ignition, i have a used replacement ignition barrel and key. When fitted the engine turns over but won't start. I'm guessing th

This car has a chip key, you can't just put any old key in it it must be programmed to not turn on the security system and disable starting, which is what you have now, the system has locked you out.

Posted on Feb 10, 2012

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Go on youtube and put in how to reset your car key after renewing key fob battery good luck colin

Jun 30, 2017 | 2005 Mercedes-Benz Mercedes Benz E320 Cdi

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I removed the battery and now the car won't start


'I disconnected the car battery/changed the car battery and now my car won't start'

Another common question on Fixya.
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So have these reset to your vehicle and then you will have no problems.

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2003 mercededes kompressor ignition won't recognise key. Key won't turn. Changed batteries in smart key. Lights etc all work.


I came across same problem while getting off work after a 13 hour day... any luck I had mine towed to dealer...

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