I have an 02' slk32. Ive noticed this on numerous occasions now. I will be driving 20-30mph or freeways sometimes and my car will out of nowhere lose almost full power and the ESP, E-Brake, and BAS light will get lit. Also my speedometer drops to 0mph. So after pulling over and shutting off the car and turning it on again this problem gets solved but not for long. This has been happening a lot lately. Also the car doesn't shift while this is happening and when pressing the pedal it picks up speed but very little. What can be causing this?