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Types of BM54 Faults

-Amp Upgrade. The most common one, is the IC Amps failing and causing one or more speaker to stop functioning, or causing distortion. This can happen permanently, or after about 10 seconds to a minute of switching it on. And if you are really unlucky all 4 channels would have gone off. As long as you can still change radio channels, switch between Modes, and the amber light is still ON, then the unit is 100% repairable. 

The bonus of having this repair done, is that the sound will be improved. The usual power output is 15-20 watts, and the after the repair, you are running 45 watts. Here are some great comments on my work http://forums.m3cutters.co.uk/showthread.php?p=672474 (Note, the BM54 units are very similar units)

-Processor chip replacement. Buzzing, squealing type noise as shown in the video below. 

This fault usually starts at very low volumes, and eventually spreads like a virus, to the point that you hear at all volume, bass, treble settings. Again, 100% repairable. 

It is very rare to have both amps fail, and this fault to happen at the same time. However, if you do have both faults, I can do one of them half price. 

Additional Upgrades

- RCA Preouts Channel Outs for after market amps, is also available on request from a cost of £30.  Will also come with 12v Remote cable for easy plug and play for your after market amp  installation. 

Auxiliary input options

-Bluetooth Music Streaming via mobile phone, which does not effect the Bluetooth connection you already have in your car for phone calls. This is available for £90.

-Iphone/Ipod connection, which will charge your device and play music via the car. This is the 30pin connection and the cost is £80.

 -3.5mm Jack input, default is usually a male connection. You can have female also, which can make a nice OEM installation somewhere in your car. The cost for either male or female is £50. 

Why Choose My Service?

Full test station, with all the components from the Ibus station, including tv tuner, navigation drive, screen, cd changer, bluetooth ulf and the BM54. All 4 channels can be tested individually. Unlike other repairers, who have no way of testing the units. 

Your actual unit is repaired and returned.

UK's No.1 Navigation and Sound System repairs and parts provider to BMW Dealers

I have repaired and upgraded over 300 Becker units with 100% success and 100% Feedback.  Full refund is always given, if a unit is not repairable, you have sent us the wrong unit or you are unhappy with it. Please contact me first. 

As well as the K1200LT units, I can do repairs on other Becker units, like the radio modules on the BM54, Logic 7 amps with bass faults, ASK systems etc. 

Free Special Recorded Delivery on all units returned back to you, which is covered for up to £500. (UK Only)

My goals are always to give 100% customer satisfaction, to help out other BMW enthusiasts and to give a Fast Turnaround on all my items/replacements.

Please always feel free to call me on (apologies, my number had to be removed due to Ebay rules, please visit carphonics website for contact details), if you require any advice or to ask questions about your BMW System.

Address to send your unit to

Please follow link, and print out the form. Please fill in as much detail as possible. If you have any questions, do let me know.  http://www.carphonics.co.uk/forms/k1200lt.pdf

If you you do not have access to a printer, please just write clearly on a piece of paper, and place in your parcel. 

Feedback 

As well as Ebay feedback, I have 100% feedback from forums. Here are just a few of my customers who had my work done on their Radio units. 

http://www.bmwlt.com/forums/showthread.php?t=68321&page=1&pp=50