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
- 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)
I first asked my Porsche shop to verify the problem was with the CCU and not with the relays. Once verified (hooked up a functioning CCU and all was well), I debated the merits of used versus reconditioned. Ultimately, I chose reconditioned (ie. warranty). And it did cost around $1k! If the issue were to occur again, I might try a used unit (as long at I could return it if it didn't work). On a related subject, the winter prior to the failure was the only time I had stored the car with a "battery manager" attached. I'm unsure if the two are related, but the car came out of storage with a non-functional CCU. As for this being a common fault, I agree ... there seem to be a lot of used CCUs on the market. However, I had several "experts" tell me these things are "bullet-proof" ... go figure.
I, for one, feel no ill-will toward 356 owners/drivers. In fact, quite the opposite. As is widely held, the 356 is the mother of the 911. If driving in Vermont and passing a Polar Silver 993, you will definitely receive a double flash (and I'll possibly flag you down for a closer look at your 356). Showing no sign of respect/appreciation for a 356 would be like running into your grandmother in church and not saying hello!
The climate control unit on my 95 993 isn't working properly. When either the A/C, max A/C or recirculating buttons are pressed, the fan ceases in the cockpit after about 2 seconds (but a fan noise can still be heard coming from inside the dash). When the A/C or max A/C buttons are depressed (released), the fan begins blowing again and cold air can be felt for a moment or two. Accordingly, it appears that the CCU is shutting down interior (to the dash) vents?? when these buttons are pressed. My local dealer estimates a replacement CCU to be in the neighborhood of $1k + labor. I have noticed a few sites selling remanufactured CCUs, but I'm worried I may be paying for someone else's problem. Does anyone have any advice regarding this type of issue? Thank you.