I haven't been able to work out how exactly to do this and if it's supposed to happen but...

Sometimes if I push the unlock button a couple of times (or hold it down, I think) on my BA remote the drivers window will go down. It does it very randomly and I've never been able to replicate it on demand so I'm not sure if there is a short or a faulty BCM or something?

Have I got a potential problem somewhere or is there a sequence on the remote to do this?

Thanks

due to faulty capacitor in window master switch built prior to 14 feb.03-
marked on side of switch eg 10b3 =10 day Feb 03
replace switch