Help in changing wiper motor

plz help me with directions on changing the wiper motor. i already bought the motor from the dealer. plz help asap its snowing in seattle.

what year vehicle and model?

its a 1995 c280

first pull the plastic leaf gaurds up and out. then remove the screws and 2 plastic nuts and pull the whole vent cover off. remove 2 nuts and 1 bolt from the wiper frame. you have to move the wiper arm to a couple spots to clear the windshield. the worst part is getting the base post out of the rubber grommet. total time mabey 1/2 hr. goes together faster.

Can hear wiper motor working perfectly on my 2000c 180 but wiper arm is not moving and it is reaning cant get to shops or any where .If i move arm it goes over screen and halfway back and stay there while motor is working
PLEASE HELP
REGARDS
JAY