While driving (1992 500SL) I notice that I was unable to accelerate when pressing down the pedal. A while latter the car began to loose speed and I was unable to accelerate. There where no indicator, or warning lamps on. The transmission engages reverse (R ) and (D ) but will not the when pressing the accelerator pedal the car will not accelerate.
Is this an automatic transmission problem? Or an accelerator pedal problem?