UK Car Repair Questions? Ask a Mechanic for Answers ASAP
I'm assuming by your description of the problem that you have a Convertible? THe problem is in the door latch, it is not recognizing the door open signal. Your dome light may also not come on when you open the door, or may flash briefly. Replace the latch and you should be all good.
Sometimes the system sees the signal for just a second. Try doing it with the key on, (this will turn the light on as soon as it sees the open signal, but off again as soon as it sees the closed signal) See if the light goes back off again right away.
There was also a programming update available for the system, involving replacing both window regulators if there was too much "play" in the system (like if you could hit the up or down switch and hear the motor run but the window would not start moving right away, like a half inch of "free play". But since you are getting no "drop" on open at all, I suspect the door latch.
It's the whole latch. It is reasonably easy to do, but care needs to be taken as you will pull the window glass all the way out of the door when doing it, set it someplace safe.
You can get them on Amazon, but the one for the Convertible is a different part number than that for the other vehicles.
sure- just know the site sends reminders automatically- they are not directly from me.