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Audi Wiper Motor Removal
 
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Pelican Technical Article:

Audi Wiper Motor Removal

Peter Bodensteiner

Time:

45 min

Tab:

$100

Talent:

****

Tools:

10 mm driver and socket/ratchet

Applicable Models:

 
Audi A4 (1997-01)
Audi A4 Quattro (1997-01)
Audi TT (2000-04)
Audi TT Quattro (2000-04)
VW Beetle (1999-02)
VW Golf (2000-02)
VW Jetta (2000-02)
VW Passat (1996-00)

Parts Required:

New wiper motor

Hot Tip:

Remove leaves and debris from the cowl area while you're working.

Performance Gain:

If your wipers don't work, you'll dread any rainfall

Complementary Modification:

Chip upgrade; wiper blade replacement

You might be tempted to take your car to the shop if the windshield wipers quit working. You could be an emergency situation (you're traveling cross country through a thunderstorm), and it probably isn't a job that you've ever done before. However, if you are so inclined, it's not a bad job to tackle yourself and you'll save a couple hundred dollars.

All the fasteners related to this job are easy to reach and won't likely be rusted or hard to remove. The most difficult part of the job is to remove the spider-armed linkage that connects the motor to the wiper arms. It is wedged into a spot underneath the plastic cowl cover and lower windshield cover and behind the ECU. Just remember that you can move the linkage arms around to help clear the various obstacles in the way--spend a moment looking at the mechanism to better understand how it works.

Once you have removed the plastic cowl and lower windshield covers (see the ECU removal project), you can reach the wiper motor linkage assembly.
Figure 1

Once you have removed the plastic cowl and lower windshield covers (see the ECU removal project), you can reach the wiper motor linkage assembly. The linkage is secured to the body of the car with 10 mm bolts in three places--one at each end of the linkage assembly and one at the center. This is the bolt furthest toward the driver's side of the car, next to the hood hinge. These get tightened to 71 inch-pounds during reassembly

This is the bolt toward the passenger side.
Figure 2

This is the bolt toward the passenger side.

And this is the bolt in the center.
Figure 3

And this is the bolt in the center.

The trickiest part of this project is maneuvering the wiper linkage assembly out from under the windshield and out of the car.
Figure 4

The trickiest part of this project is maneuvering the wiper linkage assembly out from under the windshield and out of the car. It is helpful to remove the cover from the ECU enclosure to gain a bit more clearance.

It's difficult to describe the best way to remove the linkage assembly from the car.
Figure 5

It's difficult to describe the best way to remove the linkage assembly from the car. The Bentley manual says to tilt the whole assembly forward at the top to remove it, but this can be impossible to do if the linkage ends are obstructed by the two tabs that provide the mounting points for the assembly. It can take some experimentation with the positioning of the linkage arms in order to get the assembly out.

Once you have the assembly out, you will need to disconnect the electrical connection for the wiper motor, which is attached to the back of the linkage assembly.
Figure 6

Once you have the assembly out, you will need to disconnect the electrical connection for the wiper motor, which is attached to the back of the linkage assembly. The electrical connector is like many others in the car; use a screwdriver to lift this tab over the notch on the motor side of the connector and then pull the connector on the end of the wiring straight off.

If you're having issues with the electrical connector, it you can separate the wiper motor from the linkage.
Figure 7

If you're having issues with the electrical connector, it you can separate the wiper motor from the linkage. You can either remove the mounting bolts or the two arms that pivot from the motor arm first. I removed the three 10 mm bolts first, but it may be easier to remove the pivot arms first.

Use a flat-blade screwdriver to pop the top arm off of the pivot
Figure 8

Use a flat-blade screwdriver to pop the top arm off of the pivot--it's a ball and socket-type joint.

Do the same to remove the lower arm.
Figure 9

Do the same to remove the lower arm. Now the arm on the motor can pass through that hole below if or when you've removed the three mounting bolts. Once the motor is removed from the wiper transmission, be sure to check the wiper arms. They need to be free to move back and forth. If they do not move freely, actuate either the left or right side and find the one that is sticking. The linkage is about $80 from your local dealer.

Here's what the motor looks like once it is completely disconnected and ready to be replaced.
Figure 10

Here's what the motor looks like once it is completely disconnected and ready to be replaced.

Secure the new motor to the linkage assembly with the same 10 mm bolts, tightened to 71 in-lbs.
Figure 11

Secure the new motor to the linkage assembly with the same 10 mm bolts, tightened to 71 in-lbs.

I recommend leaving the ball and socket joint disassembled until you've put the linkage back into place.
Figure 12

I recommend leaving the ball and socket joint disassembled until you've put the linkage back into place. This way you can maneuver the arms freely as needed. Once you have the linkage where you need it and the motor is reconnected to the car's wiring, pop each arm back onto the pivot, applying pressure until the arm snaps into place (it's not a bad idea to apply some lubricant to the joint before reassembling it). Then you can mount the linkage and continue back through the earlier steps in reverse to button everything up.

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