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      10-17-2012, 05:18 PM   #92
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Originally Posted by kardboard View Post
This is exactly what I was told when I bought my 2010 135i by my sales rep. He told me, if I remember correctly, that the two keys I received were the only two keys that would start the car. If I happened to lose both keys, they would have to replace the ECU (I assume) and would cost an arm and a leg.

Any truth to this? I bought my car new in January of 2010 from a BMW dealership.
100% wrong.

You can lose both keys and buy two new keys and have them synced to the car.

The CAS unit never has to be replaced unless there is a problem with it, which happens but is very rare (older versions of Program are known to cause module damage during update).

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Last edited by BPMSport; 10-17-2012 at 05:31 PM.