Jump to content

The RennTech.org community is Member supported!  Please consider an ANNUAL donation to help keep this site operating.
Click here to Donate

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

I'm having a hard time trig to figure out what rear differential fluid my 2013 CTT takes.  It has the PTV electronic rear end on it and from what I understand it has carbon fiber discs in it and requires a specific fluid.  Anyone have any sources that provide a brand/part number?  

Link to post
Share on other sites
    You can remove these ads by becoming a Contributing Member.

  • 2 weeks later...

Cool.  I was able to cross this over to Ravenol MDL.  The Porsche part number floating around was 000 043 300 37.

It took about the 1.3L to fill it.  The chattering at low speeds it was experiencing is all but completely gone.  This is very similar to the transfer case oil changeout I did a little while ago.  I'm at a bit over 55k miles.  The old fluid was like black water coming out of there.  So this will also be something I probably change out every 30k miles moving forward.

Link to post
Share on other sites

It's amazing to me that Porsche basically tells you to never change the driveline fluids.. with active clutches in the transfer case and the torque-vectoring rear diff - its certain that the fluid will deteriorate - due to sheering from the clutch, and material worn from the clutch.  WHAT are they thinking? 

Link to post
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.

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.

  • Similar Content

    • By neoplanet
      Hi.  The title is probably self explanatory.  If I get a used diff, is it just plain risky, or can it be understood whether the thing is one of the good ones or not before I replace my noisy one with it?
      Much thanks for any insight.
    • By coventryhall1
      Can anyone help me identify a fluid leak? While changing oil on my '04 Cayenne S, I noticed a small leak coming from the drain (weep) hole of what I would normally call the bell housing which I assume is part of the transmission housing. There are 3 small holes in a row which appear to be drain holes. The fluid has the consistency of 90 weight oil. It is amber in color. It's not motor oil or transmission fluid (which I think is colored Red). Thanks!
    • By gravityalwswins
      During and undercarriage investigation of my '04 CTT, I came across what I suspect to be the front differential vent hose just dangling about the drive shaft. I can see the metal fastening clip attached to the hose but am unable to see where it should be attached. I inquired of the mech who performed the reassembly and install of the engine and he declared he didn't know where it went? Does anyone have knowledge to the whereabouts of the securing point for the hose/clip? I will look through the portions of the PET that I have but was hoping someone here has some knowledge on this. TIA
    • By shinjiranai
      I've got a 98 Boxster completely stock. I'm trying to decide if I put in a limited slip differential or upgrade to the M030 suspension first. I'm pretty much looking for improvement in autocross. Any thoughts?
    • By Dennis C
      Just today, I noticed a strange noise coming from the front of my C4S. It sounded a little like a slipping belt - sort of a high pitched squealing. It only happnes under very specific circumstances, and it's intermittent. I've been able to replicate it a few times, but not consistently. The noise happens when I'm coasting down hill, in gear. I've only heard it in 3rd gear and 4th gear at this point. Giving the car gas when the noise is heard makes it stop entirely.
      I'm beginning to wonder if the viscous coupling is "slipping", or if perhaps there's some other issue with the front differential. I had my differential fluid changed at the 90,000 mile service a few years ago, but it hasn't had any service or issues other than that.
      Any thoughts? Does this sound like a differential or viscous coupling issue? I can already see dollar signs floating in front of my face...
      I'll be taking the car to my mechanic to have it checked out, but I'd love to hear some opinions or hear about similar experiences and solutions.
  • 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.