Some BMW vehicles with 6L45 transmissions may exhibit no engagement when shifted into Forward or Reverse gears. Under these circumstances, it is common that the manual valve has broken into two pieces forcing the car into the Neutral position. Sonnax standard-sized manual valve assembly 104740-24K addresses this problem with additional improvements. Hardcoat anodized valve and aluminum link Increased stem diameter for added strength to prevent breakage Increased spool lengths for increased stability and leakage prevention Note The shape of the Sonnax manual valve linkage is substantially different than the OE version but functions identically.