Quote:
Originally Posted by andrewwynn
I'm not sure you can unless you actually cut the key. Eg eBay $10 key. I think you have to put the key into the ignition to start the pair procedure not sure if you could trick it by having a working fob next to the working key in the ignition.
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We were only talking about the key remote functionality. Any working E53 remote key can be synced for test purposes (and then re-synced back to original vehicle).