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)

"One Touch" Raise/Lower Cabrio Top

Recommended Posts

Bahntech make one that uses a timing device. You have to tell them how you want it programmed. But it is costly imho.

But I am working on a project myself using an LM122 timer chip.

Basically the chip is a timer that can hold a relay closed for a set

period. The relay in this case will be dual pole so that it can hold

the ragtop button closed or open while also grounding the handbreak

circuit. It will be a while but if I do this I will post the DIY here.

Link to comment
Share on other sites

I installed the AutoTop bahntech in our boxster. Works great, installation is quick and simple.

You need to pull the radio to get to the speed sensing wire in the back. You don't have to connect this wire, but this prevents the top from opening above 25mph.

I also modified the top-relay (hack) to allow the top to operate while driving (disconnect speed sensor and ground handbrake sensor).

Two points:

The top speed protection is only active when pressing the button - if you speed up it will continue to operate.

Also, if you touch the button when the latch is closed, the stop will start operating when the latch is unhooked. It 'remembers' its state.

Otherwise works as advertised. Analogous to your automatic windows.

Wished we had in installed earlier (we did not because of factory warranty).

My favorite solution is www.smarttop.de (Berlin, Germany) It is the cleanest solution I have seen, but at twice the price of bahntech it is quite pricey. I would contact them direct and ask about 996 support.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • 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.