C219 CLS55 and CLS63, 2004-2010

Keys not recognized by car anymore

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Old 03-08-2012, 05:35 PM
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1988 BMW M3
Keys not recognized by car anymore

Both keys seems to have lost communication with the car. The keys still work in the ignition but keyless entry (locking and unlocking from the keyfob) as well as keyless go just stopped working.

Any thoughts?
Old 03-08-2012, 11:01 PM
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07 cls63 amg, 09 R1
Battery inside key?
Old 03-08-2012, 11:18 PM
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300SL24 R129 - CLS 500 W219
Hello,

May be you need to synchronise both.
Press 2 Times on the remote key in direction of the front door handle,
Then you have 30 sec to insert the key into ignition.

Regards,
Frenchy.
Old 03-09-2012, 11:25 AM
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1988 BMW M3
found out battery in one is low. going to be replacing both and try the sync as well.

thanks all!!

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