Dear Mercedes owners,I am "happy"W200E-94 owner from Finland.My car lost idle speed I have tools and knowledge find a failure.PSM ECU donīt give signal to idle motor.In Finland this ECU cost 3000Euro!I hope you tell me experience about this problem! I send my ECU to Germany,I hope,this company(Glaubitz-autodienst GmbH&Co.Kg,ECU.net,)can fix my old Ladyīs brains! If you have same problem,or gnowledge about this thing,please,write my mail address: juhal69@gmail.com