First thing to do to remove the wiper assembly is to filp the arm back toward the front of the car exposing a 8mm nut that retains the arm on. After this remove the under headlight filler panel (one screw). This should allow you sight access to the wiper motor itself. To remove the wiper motor assembly you need a 17mm open-end wrench to remove the retaining nut. Once you do that unhook the harness & the wiper motor should slide right out.
1994 E500 (MY SUNDAY DRIVER)
1993 190E SPORTLINE LE W/ M104 SWAP
2000 BMW 528I (WIFEY'S CAR)
"Excuses are crutches for the unfounded."