BMW 300 E46 - Ignition key failure | Technical matters | Back Room Forum

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Wed 25 Apr 2012 16:29

BMW 300 E46 - Ignition key failure - Rusty-Rim

The ignition key on my wife's car fails to start the vehicle, although it opens/closes the door wirelessly. She took it to the BMW dealer and they said that they couldn't find anything wrong with it but a replacement would cost £70+ and proof of ownership documentation provided. I checked on various websites and this appears to be a not uncommon problem, with the EWS chip in the key failing to communicate with the ignition enabling circuit in the steering wheel. It seems that the EWS chip needs time to "re-tune." The methods suggested for re-tuning have not worked for my wife's key. Are there any further things to try prior to getting out the credit card?

Cheers

Rusty_Rim

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Wed 25 Apr 2012 17:57

BMW 300 E46 - Ignition key failure - elekie&a/c doctor

Not much else you can do with these.They either work or don't work.New key will come factory programmed ,all you need to do is sync the cdl system to the remote.£70 seems a very good price for a key for one of these.Lucky its not a Merc or a Toyota at £200+.hth

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