Sound like BMW Dealers are full of sh......! Before my e92 i had a 2010 Audi A4 brand new i installed coilovers, 20" wheels,ecu coded and a module to play videos on the oem screen and they never came to me with that BS. i had my car few times on the dealeship for repairs like oil leak and transmission replacement and never blamed the aftermarket coilovers or the wheels they just repaired the car with no issues at all!
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