V8V Passenger Window issue. Any ideas?

[peterr96]

Washing the car yesterday I discovered that when the door handle was pulled the passenger window dropped further than it should (usually drops about 10mm, this time 30-40mm). Closing the door made the door go up about 10mm less than it had gone down.
If repeated numerous times the window would end up being further down each time.
Using the window raise switch the window only goes up or down in 40mm steps. Auto open does not work.
I've tried window learn (numerous times)
I've had the door card off and unplugged the window module (thanks Dangermonkey) but the problem persists except now the window does not even attempt to drop when the door is opened. Fortunately it is not jammed behind the trim!
Anyone met this before?
Suspect it's going to be a new window/door module.

[drmw]

Had very similar to this on an XKR some years back. Turned out the battery was at the end of its life & this was a safety measure to make sure you didn't smash the window when closing or find it wouldn't drop when trying to get in.

[Neil1300R]

peterr96 said:

Suspect it's going to be a new window/door module.

Only other possibility as has been suggested is battery. Seeing some wierd st recently with the electronics on the early cars which is often traced to the battery needing to be replaced. Unlikely in your case as you've reset the door / window module.

[Jockman]

peterr96 said:

.....Suspect it's going to be a new window/door module.

I suspect you are correct, Pierre

[peterr96]

Neil1300R said:

peterr96 said:

Suspect it's going to be a new window/door module.

Only other possibility as has been suggested is battery. Seeing some wierd st recently with the electronics on the early cars which is often traced to the battery needing to be replaced. Unlikely in your case as you've reset the door / window module.

Think battery is unlikely. Car starts absolutely fine, although as it is still the original battery the end of its useful life is probably nearing.
However now that Jockman has confirmed my suspicion, I'm almost certain it's not the door module!

[Jockman]

peterr96 said:

.... now that Jockman has confirmed my suspicion, I'm almost certain it's not the door module!

You are probably correct

[mikey k]

Jockman said:

peterr96 said:

.... now that Jockman has confirmed my suspicion, I'm almost certain it's not the door module!

You are probably correct

Could you not swap a module from some one local to you.
I will echo the battery comment
Both mine have done weird st when the batteries started failing
Including the clock whizzing round backwards!

[Jockman]

mikey k said:

Could you not swap a module from some one local to you!

Hever in 2 weeks.....lots of unattended cars.....

Just saying

[SS972]

I had something similar with my LH door mirror getting mad:moving in all directions without using the switche.I unpluged the battery, waited 5 mm and all came back to normal,worth a try.

[davidexige]

I had the exact same problem over the weekend, started after I left the keys in the car with the radio on by accident, the car would start fine but the window was behaving exactly as you described, however I noticed that once the car was running and left for a few minutes the window would open and close normally, suspected that the battery voltage must have been a bit low, left the car connected upto the the battery tender overnight and it's been fine since. I would make sure your battery is fully charged and give it another go, you might also have to carry out a window position learn as you have had the module disconnected.

[peterr96]

davidexige said:

I had the exact same problem over the weekend, started after I left the keys in the car with the radio on by accident, the car would start fine but the window was behaving exactly as you described, however I noticed that once the car was running and left for a few minutes the window would open and close normally, suspected that the battery voltage must have been a bit low, left the car connected upto the the battery tender overnight and it's been fine since. I would make sure your battery is fully charged and give it another go, you might also have to carry out a window position learn as you have had the module disconnected.

Hmmm interesting. I'll pop the conditioner on and see if that magically resolves it.