This has been an on going issue for 4 yrs. occasional ESP, BAS error's drops into limp mode. some times when you insert the key panel lights up normaly but absoutly NO responce to start, no click on nothing. come back an hr. or so later and all is well. been to MB 3 times they replaces the trunk SAM; seam's to have made no differance. Done the steering wheel sinc trick and everything else I can think of. I need some good MB heads here to throw out some idea's on what to go after. PLEASE.
!!EDIT I FORGOT to mention 2 other things that might also help, 1 is an occasional rough idle at stop signs; 2 when the turbo fan starts it seams to be the time it throughs the ESP error's the most.