One touch windows not working

[LunarOne]

First use of my 2014 Boxster S this year today, and I noticed something odd. My windows aren't responding to one touch. So you have to hold the switch Not a big deal. I then got out of the car and held the lock button on the remote to close the driver side window the last inch. No go. I then tried opening the roof from the remote, by holding the unlock button. That worked, but normally, the it drops both windows a few inches before moving the roof. The roof opened fine but the windows didn't budge. The reverse is the same. The roof closes fine, but the windows stay in the fully up position.

Here's the weird part. Opening the roof using the switch on the centre console DOES drop the windows before moving the roof. And when closing the roof, it does shut the windows after latching the roof, as normal.

Background info - While in storage over winter, the battery went totally flat. I probably should have disconnected it. I had to use a power pack on the pull-out contact in the fuse panel to open the front to get the car started. Battery was kaput so I replaced it with a new one of the exact same one I had before. I know you're supposed to program the gateway to tell it battery capacity and that it's an AGM battery. I had to replace the battery myself during 2020 lockdown as the previous one kept flashing up warning messages. As I couldn't get the car into the OPC they said I could replace it myself as long as I did it like for like (same capacity, AGM) and would not need programming.

Any idea what's going on? Thanks!

[HighwayStar]

LunarOne said:

First use of my 2014 Boxster S this year today, and I noticed something odd. My windows aren't responding to one touch. So you have to hold the switch Not a big deal. I then got out of the car and held the lock button on the remote to close the driver side window the last inch. No go. I then tried opening the roof from the remote, by holding the unlock button. That worked, but normally, the it drops both windows a few inches before moving the roof. The roof opened fine but the windows didn't budge. The reverse is the same. The roof closes fine, but the windows stay in the fully up position.

Here's the weird part. Opening the roof using the switch on the centre console DOES drop the windows before moving the roof. And when closing the roof, it does shut the windows after latching the roof, as normal.

Background info - While in storage over winter, the battery went totally flat. I probably should have disconnected it. I had to use a power pack on the pull-out contact in the fuse panel to open the front to get the car started. Battery was kaput so I replaced it with a new one of the exact same one I had before. I know you're supposed to program the gateway to tell it battery capacity and that it's an AGM battery. I had to replace the battery myself during 2020 lockdown as the previous one kept flashing up warning messages. As I couldn't get the car into the OPC they said I could replace it myself as long as I did it like for like (same capacity, AGM) and would not need programming.

Any idea what's going on? Thanks!

Mine have done that when unlocking the car whilst windows frosted up, stopping the window from the small drop. Using the door button.. hold it down to lower them on the way down and hold the button down for a few more seconds. Then hold it up, raising all the way up, hold the button for a few more second… repeat once more to lower them again. The one touch and initial drop when unlocking the car should now work.

[LunarOne]

HighwayStar said:

Mine have done that when unlocking the car whilst windows frosted up, stopping the window from the small drop. Using the door button.. hold it down to lower them on the way down and hold the button down for a few more seconds. Then hold it up, raising all the way up, hold the button for a few more second… repeat once more to lower them again. The one touch and initial drop when unlocking the car should now work.

Thanks for that. I've tried the procedure for the just the driver's window, then the drivers and the passenger, and then both together. Unfortunately it made no difference. Googling for Porsche window adaptation reset tells me that your procedure is correct but many sites mention 10 seconds of holding. Perhaps I didn't hold long enough. I'll try again tomorrow.

[LunarOne]

Update to say it was water in the driver's side window switch. Now that the weather has warmed up, everything is back to normal. I'm sure I'll need to replace the switch before winter.

[kharma45]

LunarOne said:

Update to say it was water in the driver's side window switch. Now that the weather has warmed up, everything is back to normal. I'm sure I'll need to replace the switch before winter.

I’ve had the same thing happen to me, and had the same thought. How did you get it diagnosed and how did the water get in?

[LunarOne]

I've had a couple of Boxsters. When I bought my first one, the driver's window switch didn't work properly and the dealer (a Porsche specialist) told me he'd replace it as it must have got wet. Stands to reason - I've seen the same thing happen on other cars when liquids were spilled on the switches. So when my second car began playing up, it was a suspicion. Then the windows started refusing commands from the driver's side but not the passenger side switch, I knew it had to be the switch. I didn't replace it, and in hot weather it works perfectly.

As the Boxster is a convertible, it has no rain gutters. If you open the window when it's raining, water seems to pour strategically onto the switch. Bloody annoying.