You'll need to locate and extract the BM54 unit so that it may be taken or sent to a repair site.
The genuine BMW BM54 repair is generally so uncomplicated the unit could be returned to you personally on the exact same day it is received, or done in a few hours (should you take it in to a repair centre yourself) to be picked up on the day you drop it in.
You will discover a BM54 unit auto electrician in some Land; the BMW 3 series; and the BMW X5 and Range Rover models. Your owner's manual should tell you what version of unit that is BM54 you've got in your car.
The BMW BM54 repair begins with fault analysis - so you must tell your engineer what is wrong using the unit. Common faults in the BM54 comprise loss of audio to one or even more channels; total loss of sound; or only a number of the loudspeakers working. Know that simply the loudspeakers in a single area of your vehicle are flawed, or if one of your loudspeakers is faulty, it may not be the BM54 unit at fault but wiring in the doors.
You could have your BM54 unit assessed for faults in situ before you send it away for the BMW BM54 repair. It's best to do this because otherwise you will not know for sure that it's the unit itself causing the issue. And undoubtedly should you send that unit off without a problem,, it's going to come back not desiring fixing and you will still have that difficulty - plus you will have needed to pay the BMW BM54 repair center for its time.
You'll be able to request the centre to which you're sending it to do a full BMW diagnostic test on it before they begin to fix it if you're unsure where to get a BM54 checked before repair.
Every BM54 unit is located in a somewhat different place - normally in the boot well, below the spare tyre. For directions on removing the BM54 unit prior to the BMW BM54 repair, refer to sites or take a look in your manufacturer's guide. When you have some questions contact the business that's going to do your diagnosis and repair and request their advice.