Do windows open on their own? (Solution)

Hello,

It has happened three times already. In the morning, both front windows are open, even though I closed them in the evening. The car is a Seat Alhambra TDI, manufactured in 1998.
Do you have any ideas about what I could do?

On Mondays, there was 15 cm of snow in the car.

Best regards, Stefan.

Hello Stef,

Take a look at the cables in the area of the door passages and check for any breaks or areas where the insulation has been worn away. Otherwise, I remember seeing this error once with an Audi, and if I recall correctly, the control unit had to be replaced.

I also had this problem with the window lifters in my 1997 A4 once.

After closing the door, whether with a key or remote control, the windows unexpectedly opened. Sometimes, this happened after 10 minutes. At the VAG workshop, this problem was the topic of the day, and no one had ever seen anything like it before. For days, they tested various solutions, and even tried recoding the central locking control unit. But nothing worked! However, a clever mechanic eventually found the cause.
Okay, here's the translation:

"Now, here's the issue: this car has heated door lock cylinders on both the driver and passenger sides. The problem was specifically with this heating element. In both lock cylinders, this heating element became so hot that the housing (made of aluminum die casting) in which the cylinder sits melted (!). This caused a short circuit. Consequently, the control unit interpreted this as the "convenience opening" function being activated, which caused everything that can be opened electrically to open."
I then had to "only" wait for 5 weeks to get two new door lock cylinders. In the meantime, I removed the fuse for the power windows. After replacing the door lock cylinders, I never had any more problems.
I hope this helps you.

Best regards,
Mkmeier

Thank you, it helps.

Best regards,
Stef.