Parts Catalog Accessories Catalog Tech Info Tech Forums
 
  Search our site:    
View Recent Cars  |   Cart  | Project List | Order Status | Help    
 >  >
Wiper Motor Replacement
 
Bookmark and Share

Pelican Technical Article:

Wiper Motor Replacement

Jared Fenton

Time:

2 hours2 hrs

Tab:

$100 to $300

Talent:

****

Tools:

13mm, 16mm wrenches, T25/T30 Torx drivers, small two arm puller

Applicable Models:

Porsche 955 Cayenne (2004-10)
Porsche 955 Cayenne GTS (2008-10)
Porsche 955 Cayenne S (2003-10)
Porsche 955 Cayenne Turbo (2003-10)
Porsche 955 Cayenne Turbo S (2006-10)

Parts Required:

New wiper motor

Hot Tip:

Reset the wiper stops before installing arms

Performance Gain:

Proper functioning motor; added safety during inclement weather

Complementary Modification:

Replace wiper blades

A seemingly common failure point on the Porsche Cayenne is the windshield wiper motor. Over time, these can burn out, leaving you with a real problem if the weather turns bad and you need to be somewhere. In this article, I'll go over the steps involved with replacing the motor.

Before beginning this job, you'll need to remove the engine covers along the back of the engine compartment (see our article on Removing Engine Covers for more information). You'll also want to pull the sealing gasket off as well.

Shown here is the windshield wiper motor for your Porsche Cayenne.
Figure 1

Shown here is the windshield wiper motor for your Porsche Cayenne.

Pop the hood shock off the ball pivot on the hood (See our article on Replacing Hood Shocks for more info).
Figure 2

Pop the hood shock off the ball pivot on the hood (See our article on Replacing Hood Shocks for more info). Place a towel or pad on the windshield for protection and carefully lay the hood back. The idea here is to gain as much room as you can when removing the motor.

Move the end of the left wiper blade (green arrow) out from behind the hood while laying it back over the windshield.
Figure 3

Move the end of the left wiper blade (green arrow) out from behind the hood while laying it back over the windshield.

Turn the two plastic screws (green arrows) to release the access panel from the wiper motor cover.
Figure 4

Turn the two plastic screws (green arrows) to release the access panel from the wiper motor cover. Remove the access cover.

On the opposite side of the wiper motor cover, turn the two plastic screws (green arrows) holding the cover to the firewall.
Figure 5

On the opposite side of the wiper motor cover, turn the two plastic screws (green arrows) holding the cover to the firewall.

Loosen and remove the two 16mm nuts (green arrows) holding the wiper arms to the motor/linkage shafts.
Figure 6

Loosen and remove the two 16mm nuts (green arrows) holding the wiper arms to the motor/linkage shafts. Also remove the small rubber grommets underneath.

You'll need a small two-arm puller in order to remove the arms from the motor/linkage assembly.
Figure 7

You'll need a small two-arm puller in order to remove the arms from the motor/linkage assembly. You'll want to carefully maneuver the arms of the puller under the wiper arms, taking care not to damage the plastic base covers. Carefully pop the base covers out of the arms and push them down enough to slide the arms of the puller up under the wiper arm.

Take note of the two plastic base pieces (green arrows) underneath the wiper arms.
Figure 8

Take note of the two plastic base pieces (green arrows) underneath the wiper arms. These pieces are side specific and must be placed on the right side when re-installing the wiper arms.

Also remove the washer (green arrow) from the linkage shaft and the plastic base underneath each arm (yellow arrow).
Figure 9

Also remove the washer (green arrow) from the linkage shaft and the plastic base underneath each arm (yellow arrow).

Pop the plastic cover out of the right side wiper arm using the notch with a small screwdriver (green arrow).
Figure 10

Pop the plastic cover out of the right side wiper arm using the notch with a small screwdriver (green arrow).

Loosen and remove the 16mm nut (green arrow) underneath the cover.
Figure 11

Loosen and remove the 16mm nut (green arrow) underneath the cover. Note: either clean or replace the nut if it is rusty as the one shown here.

Use the puller to remove the wiper arm from the linkage shaft.
Figure 12

Use the puller to remove the wiper arm from the linkage shaft.

Remove the small trim piece (green arrow) from either end of the windshield.
Figure 13

Remove the small trim piece (green arrow) from either end of the windshield. They pull straight up with a little effort.

Carefully pull the wiper motor cover up where it meets the windshield.
Figure 14

Carefully pull the wiper motor cover up where it meets the windshield. There is a bead on the underside of the cover that fits into a seal right where the two meet. Take care removing the ends of the cover (green arrow) as you move them out from under the hood.

Press the tab on the electrical connector (green arrow) and pull it off of the electrical sensor underneath the wiper motor cover.
Figure 15

Press the tab on the electrical connector (green arrow) and pull it off of the electrical sensor underneath the wiper motor cover.

Loosen and remove the three T30 Torx screws (green arrows) holding the wiper motor/linkage assembly to the firewall
Figure 16

Loosen and remove the three T30 Torx screws (green arrows) holding the wiper motor/linkage assembly to the firewall

Also remove the T30 Torx screw on the right side of the engine compartment (green arrow).
Figure 17

Also remove the T30 Torx screw on the right side of the engine compartment (green arrow).

There are two T30 Torx screws on the front of the firewall that must also be removed.
Figure 18

There are two T30 Torx screws on the front of the firewall that must also be removed. ThisPicture shows one of the screws directly below the fuel rail connection (green arrow).

The other screw is located behind this wiring harness.
Figure 19

The other screw is located behind this wiring harness. You'll need to move it slightly to gain access. Carefully pry the locking tab up on the retainer (green arrow) to open it.

Now carefully pull the wiring harness (green arrow) down enough to access the T30 screw underneath (yellow arrow) as shown here.
Figure 20

Now carefully pull the wiring harness (green arrow) down enough to access the T30 screw underneath (yellow arrow) as shown here.

Pry open the wiring harness retainers (green arrows) on the wiper motor/linkage assembly and carefully pull the wiring harness up enough to allow the motor to be rotated up out of the engine bay.
Figure 21

Pry open the wiring harness retainers (green arrows) on the wiper motor/linkage assembly and carefully pull the wiring harness up enough to allow the motor to be rotated up out of the engine bay.

Now press the tab on the electrical connector (green arrow) and pull it off the wiper motor/linkage assembly.
Figure 22

Now press the tab on the electrical connector (green arrow) and pull it off the wiper motor/linkage assembly.

Turn the motor over and remove the three T30 Torx screws (green arrows) holding the motor to the linkage assembly.
Figure 23

Turn the motor over and remove the three T30 Torx screws (green arrows) holding the motor to the linkage assembly. Also remove the 13mm nut (yellow arrow) holding the drive arm to the motor shaft.

You may need to use the puller to separate the motor shaft from the drive arm as shown here.
Figure 24

You may need to use the puller to separate the motor shaft from the drive arm as shown here. Once removed, set the linkage aside.

You'll now need to engage the hood latch at the front of the car.
Figure 25

You'll now need to engage the hood latch at the front of the car. The wipers will not function if the car senses that the hood is open. We need to cycle the new motor before installing it to the linkage. Use a screwdriver to push the catch down until it locks.

Take the new motor over to the car and plug in the electrical connector.
Figure 26

Take the new motor over to the car and plug in the electrical connector. Now turn the car on (but don't start the engine) and press the one-touch wipe button. Let the motor wind out until it reaches its stop point. Once it does, turn the car off and take the key out of the ignition (important). Now unplug the new motor and fit it to the linkage assembly. Install the three T30 Torx screws and torque them to 8.8 Nm (6.5 ft/lbs).

Shown here is the rough orientation you want the linkage to be at when fitting the drive arm to the motor shaft.
Figure 27

Shown here is the rough orientation you want the linkage to be at when fitting the drive arm to the motor shaft.

Adjust the drive arm so that there is 4mm of clearance between the edge of the arm and the mechanical stop (green arrows) before fitting the 13mm nut.
Figure 28

Adjust the drive arm so that there is 4mm of clearance between the edge of the arm and the mechanical stop (green arrows) before fitting the 13mm nut. Once in place, torque the nut to 17 Nm (13 ft/lbs). Now install the motor/linkage assembly in the car and be sure to press the one-touch wipe button one more time. Let the motor wind out until it reaches its stop point. Once it does, you can re-install the wiper motor cover and wiper arms. Don't forget to plug in the sensor under the motor cover as well.

Bookmark and Share
Comments and Suggestions:
Zachariah Comments: My passenger side wiper shaft is missing the flat washers and guide sleeves, even though the splined cone nut is new. are they necessary to work? The drivers side still works great. Can I order them separately?
November 30, 2016
Zachariah Comments: What would cause the drivers side to wipe - yet the passenger side is completely inoperable? In fact, the passenger wiper freely moves about by hand. See photo below.
November 23, 2016
  Followup from the Pelican Staff: The wiper transmission is faulty OR the wiper arm nut is loose. Start by checking the wiper arm nut. - Nick at Pelican Parts  
Dan Comments: I need the metal clips that hold the "small trim piece green arrow from either end of the windshield". I can't seem to find the part# anywhere on your website.
September 12, 2016
  Followup from the Pelican Staff: Give The Pelican Parts parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
Charrua Comments: THANK YOU!!!! I was about a minute from buying another motor thinking that it was bad and after reading this I went and put the screw driver in the latch and voila! The motor works!! Love you guys!!! for saving me $$$$
BTW I bought a linkage wiper transmission they call it and it was bone dry so I took all the ball joints apart and "c": clips apart and re greased them with marine grease. Just in case someone wants to know if it is possible. Just be careful no to brake the hard plastic around the ball joint. Just tapped them with a hammer to get them back in.
June 27, 2016
  Followup from the Pelican Staff: Thanks for the additional info and feedback. We appreciate it.
- Nick at Pelican Parts
 
ratty Comments: Thank very much keep it up
May 14, 2016
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help.
- Nick at Pelican Parts
 
john Comments: we replaced the windshield on a 2009 cayenne this morning and now we cant get the wipers to work.Has anyone run into this or does any one have an idea where to start.It seems to have power but just not working
March 21, 2016
  Followup from the Pelican Staff: I have not seen this. Are the wiper arms blocked by the cowl? Is the rain sensor OK?- Nick at Pelican Parts  
xlr8 Comments: I think the previous owner did a work around as he used a 'friend mechanic' the non powered arm on the motor housing is fixed in place, the arm basically frictions its way around loosening the nut. Then the blade has less tension and does not clear the screen, lubrication amd an 8mm spanner on the spindle has not helped it free off and so i simply tensioned the bolt till its tight enough to hold the wiper down, drilled through the bolt and spindle and used a lock pin held in place by the nut cover, it seems there should be a spacer on the spindle to locate the resting point of the arm?, right now its using the force provided by the cowl. And does this spindle remove or am i looking at a new housing?
December 17, 2015
  Followup from the Pelican Staff: The arm opposite of the motor is not turning, the drive for it may be slipping. You are going to have to replace the transmission assembly. - Nick at Pelican Parts  
John Comments: The wiper motor on my 2004 Cayenne runs and moves one of the arms a little. Does this mean that the motor is bad or the linkage? or both
August 4, 2015
  Followup from the Pelican Staff: If the motor runs, maybe just the linkage has failed. - Nick at Pelican Parts  
IHAB Comments: I REPLACE THE WIPER MOTOR HE STEL DASENT WORK FROM 2005 POARSCH CAYENNE S
June 29, 2015
  Followup from the Pelican Staff: The wiper motor could lack power and ground, or there is an issue with a control module or the can system. I would star by checking the vehicle for fault codes. - Nick at Pelican Parts  

  Search our site:    

View Cart & CheckOut | Project List | Order Status |  Help    

 

[Home] [Customer Service] [Shopping Cart] [Project/Wish List]
  [Privacy Statement]  [Contact Us] [About Us] [Shipping] [Careers]

Copyright © Pelican Parts Inc. -    DMCA Registered Agent Contact Page

Page last updated: Wed 12/7/2016 02:34:20 AM