It should tell you in the handbook. For the SLK it is turn the steering from lock to lock whilst the engine is running. May be the same for other Mercedes.
Not sure what you mean? Are you talking about the stop lamp switch that is located behind the brake pedal arm? These can not really be reset, and do go bad all the time! They cost about $25 and are really easy to just replace if you want it. Then you will need to probably clear out some codes from the esp/bas control modules.
in the fuse box of the engine compartement, take of the cover of the box then see that
bas esp light
take to the dealer it could be the seatbelts setting it off a bas sensor. they can put it on a computer and tell. if its been crashed the you will have to replace the seat belts to get it to go out
Could be failed brake light switch
What_do_the_warning_light_BAS_mean_on_the_1999_Mercedes_C280Read more: What_does_the_BAS_ASR_light_mean_in_a_1999_c200
In most cases it means one of the wheel speed sensors has gone bad and needs to be replaced.
most likely you have bad brake light svitch
center your steering wheel
it means change the oil
Chani Bas goes by Chani Bas.
It means your brake pads need changing.