I installed genuine xenon lights, adapters and the BCM 5Q0 937 084AE, But I have some problems
Glove box light, boot light, sun visors light and interior light NOT WORKING
I have led tail lights, when i switch on the turn signals the inner lights on the boot, they switch off, rear fog light not working,
Fault on dash rear lights not working. Lights on switches and instrument panel are very low when the lights are OFF, the lights on the switches stays on with ignition on too.
Finally how can i code the remote on the keys because it all in GERMAN language
Can I do the adaption of the keys and to fix all these problems on the VCDS? 
wob007: Hi, Retrofitting Xenon headlight fittings and adaptors shouldn't have been a big job, but are you saying that you also retrofitted a new BCM? If so, that's a fairly major change. I assume that you meant to say that you fitted the Xenon fittings onto a car that had an EXISTING
5 Q0 937 084AE BCM.
If my assumption is correct, then the BCM component number on your car should be
BCM MQBAB H H16 0124 . The
BAB H in the component number means that this is a
high-level BCM, which should be quite capable to operate the shutters in your new Xenon lamps. However, there should have been some changes made to the
adaptation channels in the BCM as part of the retrofit. If you are not familiar with the term "adaptation channel", then I assume that you don't have a VCDS cable. If you are familiar with this term, then I strongly suggest that you make an adaptation map of the BCM in your car and compare the appropriate channel settings on your BCM with those in another mk7 that has the same BCM part number and that has xenon lamps fitted from the factory.
To help you with this exercise, I suggest that you download a copy of my BCM-compare spreadsheet which shows the adaptation channel settings for a range of different mk7 from around the world. You can download my spreadsheet
HERE. Fortuitously, one of the mk7 models in my spreadsheet also contains a BCM with your exact part number and even more fortuitously, the car also had xenon lamps factory fitted The correct comparison car is the one titled
110TDI and it is the vehicle in column
E in my spreadsheet.
Just as an initial comparison and because many of the problems that you mention in your post relate to interior lighting, find all the channels with the term "interior" using the Excel function search functions and compare the 110TDI settings with those in your BCM.
Cheers
Don
PS: not sure why you need to code your Key, but as far as I'm aware, the only way that this can be done is at a dealer that is licensed and that has the equipment to communicate with VW's central security facility? Please explain why you need this change as a result of fitting the new xenon assemblies?
PPS: Regarding the exterior light issue that you mention- here are the Leuchte channel designations for the lamps that you have identified as being problematic in your post - You should compare the full set of 19 x adaptation channels for each Leuchte-set in the list below to confirm the correct settings
- Turn Signal, rear left inside (LED taillights) = Leuchte16BLK SLB35BLK SL KC9
- Turn Signal, rear right inside (LED taillights) = Leuchte17TFL R BLK SRB3TFL R BLK SR KC3
- Fog Light, rear left & right inside (rear lights) = Leuchte26NSL LA72
