PeachParts Mercedes-Benz Forum - View Single Post

pawoSD · #2 08-17-2009, 06:34 PM

The rear pump is inside the rear housing piece of the trans. It may be that the gasket on that rear piece is leaking....to replace it you'd have to disconnect the driveshaft/remove the flex disc, undo the nut holding on the output flange, then support the transmission from the pan, remove the cross beam and trans mount, unplug the kickdown solenoid and remove the speedometer sensor (one small bolt).....then undo the number of bolts holding on the rear cover (drain all fluid from pan plug first!!) Once the cover is removed, replace the gasket, make sure the surface is clean, install new gasket, place cover back on trans, tighten all bolts to 14-18nm or so....and then re-install everything else. A new flange nut is required and must be dented into the locking slot to prevent it from coming loose. Its a good opportunity to replace the rear output seal too before you install the flange.