Windows going down on their own. Any ideas please

[ColinM50]

SWMBO's Polo has done almost a tankful of petrol this year. We've had it four years and it's now done 1440 miles under her ownership, so not exactly a high mileage at 41k from new.

Generally it's been really good but has developed an odd electrical problem over the past month or so in that when parked up the windows will sometimes just open wide. And when driving the central door locks will randomly click on and off. I've charged the battery to make sure it's not a shortage of volts, but it starts and runs OK.

Overnight I'm locking the doors and disconnecting the battery otherwise likely to have a car full of rain or snow next day but anyone and bright ideas?

Someone said it might be the plenum's full of water but didn't know where or what that is.

Tried a VW dealer but they want £90 just to plug in their diagnostic machine

It's 2 door with just a basic plipper that doesn't control the windows at all.

Any ideas welcome please

[Clifford Chambers]

ColinM50 said:

SWMBO's Polo has done almost a tankful of petrol this year. We've had it four years and it's now done 1440 miles under her ownership, so not exactly a high mileage at 41k from new.

Generally it's been really good but has developed an odd electrical problem over the past month or so in that when parked up the windows will sometimes just open wide. And when driving the central door locks will randomly click on and off. I've charged the battery to make sure it's not a shortage of volts, but it starts and runs OK.

Overnight I'm locking the doors and disconnecting the battery otherwise likely to have a car full of rain or snow next day but anyone and bright ideas?

Someone said it might be the plenum's full of water but didn't know where or what that is.

Tried a VW dealer but they want £90 just to plug in their diagnostic machine

It's 2 door with just a basic plipper that doesn't control the windows at all.

Any ideas welcome please

Known problem on VAG stuff, I can't remember exactly what, but if no one replies try posting on the VW section.

If you find a marque specialist, they'll be cheaper, and probably understand the problem and fix before they even look at it.

[tapkaJohnD]

Cliif absolutley right, but didn't provode a link. See this from as long ago as 2008!
http://www.vwaudiforum.co.uk/forum/showthread.php/...

Just the first of many from a google "VW windows going down"
John

[Brian_996TT]

it might have the function if you hold the lock or unlock on the fob you can make the windows open and close. if there no fob then maybe the micro switch in the door lock is sticking

[ColinM50]

Thanks all, I've ordered a set of tools to get the door card off so will have a look at wiring and switches