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)

Different window drop behavior after replacing regulator

Recommended Posts

I just replaced the window regulator and motor on passenger side door, on my 97 Boxster. 

R&R of the old regulator went without a hitch, and there is no more screeching & grinding.  However, there is an interesting side effect.  With the top up, and the windows up, I unlatch the  top  to put it down, and immediately (as before the repair) the windows drop down, however, the passenger window drops the whole way down instead of the 3-4” that it used to.  The driver’s side window continues to work as before, e.g. drops 3”-4”. 

The only thing I can think of to cause this is the regulator motor for the new unit. 
Is there anyway to fix this so it behaves as it did prior to installing the new one?

The replacement is used (with 11K miles on it) from a 2002 Cabriolet. 

Thanks for any help


Share this post

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



Try retraining the windows.

Hold the down button until the window is all the way down - and continue holding for 10 seconds.

Do the same for raising the window - 10 seconds at full closed.

That will likely cure your problem.

Share this post

Link to post
Share on other sites

Hi Loren:
Thanks for the tip.  I tried the procedure both with the top up and down.  No joy.

Other thoughts?


Best regards,



Share this post

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.

  • 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.