as a previous post i had in here my roof failed, so having a full comprehensive cover on the car i put it into elms bmw for repair, prior to putting it in the mech tried it and it wouldnt work so booked it in to have it looked at, taking in mind it has already had a pump replaced 2 years ago, got a phone call 20 mins ago and they carnt find anything wrong with it, it goes up and down every time they press the button, even though they say it makes a funny noise, ive told them to jet wash the out side to see if that does anything, i know its broke, they know its broke but wont do anything till it stops working infront of them, any ideas !!!!!!!! help