As my head gasket blew I had my engine completely reconditioned by V8 Developments. Unfortunately despite delivering the car to them in August last year they only just completed the work so the car was sitting in their yard for eight months. The air conditioning isn't working & I expect (hope) that as per usual it will just require its annual recharge. I usually use the Groupon ATS offer (currently £41.99) but didn't have time to get that done in between collecting the car from V8 Developments & travelling to our cottage in France.

All the above is a prelude to explain why we have been opening both the passenger & driver windows to help cool the car in the pleasantly sunny weather that we have been enjoying recently. My P38 is a RHD & yesterday the passenger window stopped working. Happily the window is closed & won't open rather than being open & impossible to close. The driver's window still operates OK. According to the handbook both passenger & driver windows share the same 30A fuse so that's not the issue.

Any suggestions as where I should start looking to fix the passenger window?

Blast of switch cleaner aerosol into the switch aperture and a few presses on the control panel appears to have fixed mine.

Mine gets used about twice year at most so contacts had plenty of time to get dirty. I suspect regular exercise of all the centre console switches, once a month or so might be good idea to keep the contacts clean and all working. Yet another of my good intentions that doesn't happen!

Clive

Clive603 wrote:

Blast of switch cleaner aerosol into the switch aperture and a few presses on the control panel appears to have fixed mine.

Mine gets used about twice year at most so contacts had plenty of time to get dirty. I suspect regular exercise of all the centre console switches, once a month or so might be good idea to keep the contacts clean and all working. Yet another of my good intentions that doesn't happen!

Clive

Thanks for the suggestion. I will certainly give it a try with switch cleaner. Disuse could definitely be the issue as it was only yesterday that on a long-ish drive we were so hot that we needed to open the window. I have no idea when the window was last opened but it must be before I dropped it off at V8 Developments last August.

To confirm it is the switch pack first and not the window motor itself. You should be able to operate the window with the Nanocom so confirm it does actually work.

Gilbertd wrote:

To confirm it is the switch pack first and not the window motor itself. You should be able to operate the window with the Nanocom so confirm it does actually work.

Which Nanocom screen will I find windows up/down? I suppose it's the BECM but I don't recall seeing it.

BECM - Diagnostics - Inputs - Mirrors Windows, three or four screens in you can see the status of the switches, so you can try the switch and see if the status changes. Then in BECM - Diagnostics - Outputs - Windows/Sunroof where you can operate each from the Nano.

Gilbertd wrote:

BECM - Diagnostics - Inputs - Mirrors Windows, three or four screens in you can see the status of the switches, so you can try the switch and see if the status changes. Then in BECM - Diagnostics - Outputs - Windows/Sunroof where you can operate each from the Nano.

Thanks as always. I won't get a chance to take a look until tomorrow now but I will report back.

To bring this to a conclusion I was able to operate all the windows with the Nanocom & confirmed that all the switches are working. The passenger (left hand front) window is now working again. I think that operating the switch multiple times must have got rid of the corrosion.

I haven't got any switch cleaner to hand as it's in the garage in my house in the UK but I will definitely give the switches all a good clean once we are back in the UK next week.

all is well when it ends well !