You have the wrong cluster. Well thats not totally true. It uses a different EMS that what is in your car. There are a lot of threads on this. Use the search to find specifics, but as a short answer, not everything will work on the4.8is cluster. Since your X is an '01, you need a 4.6IS cluster. If you are using a used cluster, it will not work because the old one is coded for the vehicle it came out of. You need to use a new one so it can be coded correctly, VIN, EMS, ECU, etc.

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2011 E70 50i M Sport