2007 Mercedes S550 P0461 Fault: Engine Dies in Drive or Reverse After Starting

Model: 2007 Mercedes S550 Fault Code: P0461 Posted: 2018-10-20 22:50

My 2007 Mercedes S550 is displaying a P0461 diagnostic trouble code. The vehicle starts normally but immediately stalls when shifted into drive or reverse. This issue occurs consistently after starting, and the car does not restart until I manually shift into reverse or neutral before attempting to move forward again. The P0461 code indicates a problem with the evaporative emission control system, specifically related to the fuel vapor pressure sensor or canister venting. I have checked basic systems like fuel filters and battery connections but haven't found any visible issues yet. Looking for advice on potential fixes or diagnostic steps specific to this model year and engine setup.