My apologies

On the north American model its on the right side of the motor where the all the fuel system parts are. more toward the front of the car. Ill try to post up a diagram for you.

__________________
1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)