Rear Washer Nozzle - Fluid Leaks
GROUP 61General Electrical Systems
61 15 00
Woodcliff Lake, NJ
Service Engineering
December 2000
SUBJECT:
Washer Fluid Bleeds Out of Rear Washer Nozzle
MODEL:
Z3coupe
SITUATION:
Some Z3 coupe owners may complain of the washer fluid leaking out of the rear window wiper arm and running onto the paintwork. Another possible complaint is that it takes too long to get washer fluid pumped up to the nozzle when using the rear window washer.
CAUSE:
There is a low pressure area created in the rear of the car as it is driven, which can draw the washer fluid out of the rear washer supply line.
CORRECTION:
In case of customer complaint, a check valve, part number 61 68 8 391 402, can be installed in the supply line at the motor to hold the fluid in the line.
PROCEDURE:
Remove the trim from the inside of the rear hatch to access the wiper motor.
Cut the supply hose about 25 mm back from the clamp (1). Install the check valve into the pump side of the hose with the arrow pointing toward the motor.
Cut off approximately 15 mm from the supply end of the hose and install onto the check valve.
Reinstall trim panel.
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty.