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Old 8th August 2017, 11:52   #1
kev-rev180
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Default key fob baffeld

my spare key opens and closes the car using the fob buttons but even though the key turns it will not start the car i have replaced the batteries with new ones which i have checked so i know that they are good ones but it still will not start the car any ideas anyone
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Old 8th August 2017, 12:02   #2
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Stiil got the transponder in the key?

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Old 8th August 2017, 12:31   #3
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Quote:
Originally Posted by suzublu View Post
Stiil got the transponder in the key?
Beat me to it! Your transponder - the item circled in red is either missing or loose in the key back.
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Old 8th August 2017, 12:43   #4
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yes it still has the transponder fitted will check if it lose i have spare keys will another transponder work
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Old 8th August 2017, 13:48   #5
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Sounds like a job for Phil T4 mate
Possibly your key isn't synced to the car
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Old 8th August 2017, 20:25   #6
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I'm prepared to wager the transponder doesn't actually belong to the car, or it has been spiked during a cranking session when the car battery has been discharged.

It isn't a problem however simply contact any of the members offering the replacement key service and have a replacement transponder programmed to the car's immobiliser

Brian
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Old 8th August 2017, 20:42   #7
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I'm prepared to wager the transponder doesn't actually belong to the car, or it has been spiked during a cranking session when the car battery has been discharged.

It isn't a problem however simply contact any of the members offering the replacement key service and have a replacement transponder programmed to the car's immobiliser

Brian [/QUOTE]

Been there and done that haven't we Brian
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Old 8th August 2017, 20:46   #8
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thanks for the replies can i have the transponder thats already in the key reprogramed
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Old 8th August 2017, 20:55   #9
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Quote:
Originally Posted by kev-rev180 View Post
thanks for the replies can i have the transponder thats already in the key reprogramed
No is the short answer, the original PCF7930 transponder is a once only program device.

The remote boards are of course recyclable, but as you say it is programmed to the cars BCU and locks and locks the car remotely so not an issue.

Have a look HERE and compare that to the alternative of paying BMW £220 for a replacement key, where all you need in reality is a new transponder

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