uberwagon:
The pump is located in the same place in your wagon.
Under the rear seat, passenger side.
To test the pump, remove and connect dirct voltage battery.
I can e-mail you the whole procedure right off the manual. You will need acrobat reader.

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1999 Porsche 996 Carrera Convertible
1994 420E - SOLD
1986 300E - SOLD, what a car
609 Certified