Jump to content

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

Recommended Posts

hi guys,

I have a 2012 Cayenne S which has done about 56k miles. When I turn the steering and press the accelerator, the rear left tyre judders. My brother observed that the wheel looks like it was 'locked'. 

My mechanic disconnected the transfer case motor, and after he did that, everything was back to normal (there was a 4x4 error as the transfer case motor was disconnected). According to him, since the transfer case motor is disconnected, the transfer case was not being used and he came to the conclusion that there is a problem with the transfer case. Another gearbox specialist I consulted with said that the problem is due to the transfer case motor. According to him, even though the motor is disconnected, the transfer case is still being used. He also gave me some other reasons which I forgot. I am not sure who to believe.:helpsmilie:

 

BTW I have  also done the following:-

1)Change the transfer case fluid

2)Change the rear axle fluid

3)Refurbish the rear left driveshaft

 

The problem became worse after doing the last 2! both the transfer case & axle fluid were dirty but nothing serious.

Link to comment
Share on other sites

  • 5 weeks later...

just a quick update, the juddering  was caused by the rear differential. Had to get it rebuilt. To confirm if its the rear differential, try disconnecting the motor which engages the rear differential. If the problem goes away, its the rear differential and if it doesn't its probably something else.

Link to comment
Share on other sites

  • 3 months later...

May be this can help you.  My garage have done both diffrential and Tranfercase oil change with gereric equivalent fluid.  After couple week, I had wheel juddering in front left when turning and accelerating, feeling like a locked 4x4 or bad CV joint.  I have read on Audi forum these car are limited slip differential and TC.  I replaced all 3 component with original dealer fluids and everything was back to normal.  My mechanical lost his bet with me.  Original fluid supposed to have a special additive for the limited slip, and this eliminate the 4x4 effect and drive now like a real quattro.  Cheap to try, do you want to bet ?

Link to comment
Share on other sites

Yep, it amazes me how many owners of what are expensive cars will skimp on the fluids they use. If a specific fluid is specified, it's for a reason. Unless you know for sure what that reason is, it's common sense to go with the dealer stuff.

 

Penny wise and pound foolish can result in horrific cost !

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.