http://www.peachparts.com/shopforum/images/smilies/confused.gif I have the same problem w/ASR in a 92 300CE. I have had the vehicle to a M/B dealership and they say its the computer module or possibly a sensor of some type. I cannot find anyway to shutdown the system. My problem has the same symptoms and in addition my gas pedal has varying amounts of resistance. I will watch you post and if we find any cure for mine I will try to shed some light on it for you. Jim