I got a 2010 e550. Bought it knowing air suspension was dropping when car is off for few hours replaced both rear bags as car was dropping in rear but sometime also drops in front just not as much as rear. After replacing bags still drops over few hours.. my question Is if I do a coilover conversion kit does anyone know what light or lights or messages will pop up on my dashboard? Is it just the malfunction message which you can hit ok and clear or will I have a bunch of lights on looking like a Christmas tree??