My S 600 got a weired problem, While driving from start the gear is so smooth and got all the speeds , but if I reduce my speed the gear box doesn't shift to a lower speed and the ASR light goes on and the car doesn't accelerate and the engine comes to a stand still. When turning the car off and on again the car runs normally for few meters then the ASR light is on again and the engine doesn't take petrol.

Does anyone know what is the problem coz I don't want the garage to do anything other than the real problem. I don't like them to play with my car.

Please Help