986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Need Help with '03 Glass Top on '99 Boxster

starfox5194 · 04-02-2023, 05:16 PM

Hello everyone,

Background: I recently replaced the worn-out original top on my 1999 Boxster with a 2003 glass top, which I found at a reasonable price. I didn't research the compatibility before the swap, assuming it would be a straightforward installation. Although the new top is now installed and looks great, I'm facing a couple of issues that are common on the forums.

The problem (clarified): My '99 Boxster has a version A transmission, which includes a microswitch on the B pillar and another one above the convertible motor. Unfortunately, the '03 frame isn't designed to activate these microswitches. It seems that most people upgrade to a version B transmission to resolve this issue, as it has a different microswitch setup. However, I'm reluctant to spend an additional $300 when the top is "almost" functional. Currently, I need to manually hold the B pillar microswitch while pressing the open button to open the top.

The question: Can anyone suggest a solution to have the B pillar switch triggered at the appropriate time when using the '03 style top on my '99 Boxster? Any advice would be greatly appreciated.

04-02-2023, 05:16 PM	#1
starfox5194 Registered User Join Date: Feb 2023 Location: Connecticut Posts: 2	Need Help with '03 Glass Top on '99 Boxster - B Pillar Microswitch Issue Hello everyone, Background: I recently replaced the worn-out original top on my 1999 Boxster with a 2003 glass top, which I found at a reasonable price. I didn't research the compatibility before the swap, assuming it would be a straightforward installation. Although the new top is now installed and looks great, I'm facing a couple of issues that are common on the forums. The problem (clarified): My '99 Boxster has a version A transmission, which includes a microswitch on the B pillar and another one above the convertible motor. Unfortunately, the '03 frame isn't designed to activate these microswitches. It seems that most people upgrade to a version B transmission to resolve this issue, as it has a different microswitch setup. However, I'm reluctant to spend an additional $300 when the top is "almost" functional. Currently, I need to manually hold the B pillar microswitch while pressing the open button to open the top. The question: Can anyone suggest a solution to have the B pillar switch triggered at the appropriate time when using the '03 style top on my '99 Boxster? Any advice would be greatly appreciated.