Disco TD5 front windows failed

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Suffolk
Hi
I’m hoping to be the new owner of an 80,000 mile Disco td5 tomorrow. The current owner has just told me the front windows have today failed. Both passenger and driver window will go down 2 inches and then stop. He says they then need a helping hand to close them. Is this a common problem and more importantly is it a major and expensive problem to fix. I’m still going to see the car as it’s got a superb history and didn’t have any issues until today. But fore armed is fore warned as they say. Any info would certainly help
Thanks
 
Ive done a basic MOT history check and it’s never had an advisory in 16 years. The current owner has had it for some 11 years and wax oils it periodically. He has a huge history file and has everything done. If it goes wrong he has it repaired immediately whatever the cost. It’s not cheap but I wouldn’t expect it to be and I will be buying it, I just wondered if it was an easy fix or should I buy it and drive it straight to the repair shop
 
Interesting that both have failed at the same time. Happy to be corrected, but I would have thought that the only common factor was the power supply. If they work for the first 2" then the fuse cannot have blown. Once you have beaten his price down a bit you might want to check the battery voltage first before spending cash on repairs.
 
From what he tells me I understood it to be they drop 2 inches he has to help them back up by hand but then if he presses the switch they will drop 2 inches again then stop.
 
If they are both doing it then a simultaneous and identical winder motor failure seems unlikely. Assuming battery voltage checks out OK, they are both controlled directly from the BCU, so if you have access to a Nanocom or Hawkeye you can tell the BCU to open or close the windows, this would tell you if the BCU link was the issue. Otherwise check fuse 13 (30A) in the passenger compartment fusebox.
 
If they are both doing it then a simultaneous and identical winder motor failure seems unlikely. Assuming battery voltage checks out OK, they are both controlled directly from the BCU, so if you have access to a Nanocom or Hawkeye you can tell the BCU to open or close the windows, this would tell you if the BCU link was the issue. Otherwise check fuse 13 (30A) in the passenger compartment fusebox.
 
Well as suspected I just couldn’t not buy the Disco. Update on the windows. On testing the front windows they both go down about and inch or two and then tilt forward and stop. The nearside can be helped back up to the closed position but the drivers side no matter how hard I try I cannot get the window closer than an eight of an inch short of closing. The mechanic I use seems to think it’s not going to be major, the fact they both go down an inch before leaning forward and stopping means it’s not a BCU issue or a fuse issue. Did they fail simultaneously I suspect not. Its going in to have the drivers door Card removed and to see what’s what. I’m guessing it is a tooth missing on the gearing or similar. Time will tell but for now I’m loving driving t
 
I think the window could be jamming in the rails as you say the windows are tilting forward and unable to raise back up I would check the bolts are tight in the rail that holds to window if not you can rule that out my passenger window does that some times I have never bothered to repair it yet.
 
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