Very strange...not sure if Im following you as I have no issues here. I think the stuck xenons are a separate issue altogether.
Is "Start brake" = emergency brake?
What sensor is the SA referring to?
07/07 E90 335xi SG
Black Dakota|Alum|ZSP|2AB|ZPP|ZCW|Nav|CA|6FL|PDC|Blackli nes|3M
Summers: 235/40/18 265/35/18 Hankook Ventus V12 on VMR 701s
A/S: 225/40/18 255/35/18 Pirelli PZero Nero M+S on OEM 162s