Wiper and Washer Systems: Service and Repair

Removing and Installing Wiper System

Preliminary work:
Wiper arms removed, refer to "Replacing Wiper Arms". Service and Repair







Removal
Raise wiper head to vertical position.

WARNING: Withdraw ignition key when working on the wiper system. Movements at the wiper arm or wiper linkage may activate the park position automatic control with effect from ignition key position "1". This could lead to hand injuries.

Vacuum lines (1) at main air flap elements
detach.

Screws (2) in air collecting box
unscrew.

Temperature sensor at left air collecting box
detach.

Air collecting box
remove.

Dust filter with cover (140 589 00 98 00)
cover over.

Screws (3) in left cover
unscrew.

Left cover
unclip and remove.

Screws (4) in right cover
unscrew.

Rubber ring on right wiper arm mount
press off.

Right cover
unclip and remove.

Wiper system
move into end position (withdraw ignition key).





Electrical connection of wiper system relay (K26)
disconnect.

Bolts (5) at right wiper arm mount
unscrew.

Nut (6) and bolt (7)
unscrew.

Screws (8) at stops
unscrew.

Electric cable with rubber grommet
push into water box.

Wiper system
move to the left and take out.

Installation
Wiper system
insert from left to right.

Small cover below wiper head
attach.

Wiring harness with rubber grommet
push through partition.

Stops with screws (8)
attach, 10 Nm.

Wiper arm mount with bolts (5)
attach, 10 Nm.

Clip with nut (6) and bolt (7)
attach, 20 and 22 Nm.

Connector at relay (K26)
connect.

Setting





Position wiper arm (driver's side) in vertical position. Check distance (A) between windscreen and wiper head with gauge (special tool. Part No. 129 589 03 21 00). The wiper system can be shifted in the oblong holes by slackening the nuts (6) and bolt (7).

Further installation is performed in the reverse order.






Special tools