Master key cannot start engine - BMW Forum - BimmerWerkz.com
3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

 
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#1 (permalink) Old 03-30-2012, 03:51 AM
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Master key cannot start engine

Hello all, I am new to BMW, bought a used 2001 E46 two weeks ago, its a 325xi.
Had just serviced and replaced d MAF, it runs fine, but I think it could be better.

I currently have issue with d master key not starting d car, only d spare key. The remote sensors work on d master key. It's there anything I need do to make d master key start d car?

The color code on d master key is blue.

Thanks

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#2 (permalink) Old 03-30-2012, 08:52 AM
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The keys have a chip in them which sends a unique code to the ignition. If that code using correct the ignition won't start. It's called the EWS, but is known as the Drive Away Protection System. I would take the key to the dealer and see if they can ensure the chip is functioning.


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