Quote:
Originally Posted by TerminatorX5
...most E53s are prewired for the trailer, the module does NOT need programming, it is for the light controls, also cuts off the rear parking sensors, and if you have user adjustable air suspension, it will NOT allow change in ride height when trailer is connected electrically.
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Not true. While I agree that the module doesn't need programming, in many cases the vehicle software will need to be updated to permit the vehicle to recognize that the module has been connected. This came about in 2004, prior to that flashing was not mentioned in the BMW installation procedure.
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2007 X3 3.0si, 6 MT, Premium, White
Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue
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