Window sometimes won't close, or closes in jerky 1-inch increments

MarkMas

MarkMas

Chief pedant
Messages
8,896
Similar to a couple of other threads, but they don't seem to have the answer:
https://www.sportsmaserati.com/index.php?threads/drivers-window.26116/
https://www.sportsmaserati.com/index.php?threads/front-passenger-window-anti-trap-fault-qp-v.24488/

If I press the button to open my driver's window, it opens normally. If I try to close it nothing happens (no nasty noises, just no movement or just the sound of a half-hearted attempt to close).
If I stop, switch off, run round the car twice clockwise etc, then pull the window button, it sometimes starts to close by about one inch, each time I pull the button, until it is fully closed.
I've tried the 'hold the button up for 10 secs' thing, but that hasn't helped.
Lubrication, anti-trap strip, microswitch? What to try next? WD40, duct tape or Migliore?
(2009 QPV)
 
J

jemgee

Member
Messages
381
I had a similar problem although not as severe. I recently squirted a silicone spray down into the side tracks when the window was fully open and then up the exposed side tracks. At the moment it seems to have done the trick although its a Maserati so no guarantee
 
MarkMas

MarkMas

Chief pedant
Messages
8,896
I tried the silicone in the tracks thing, but no better.

Then Migliore spent about an hour trying to see what the problem was. In the end we agreed that it was probably the overload sensor in the motor going wrong, so they were going to look at getting a new motor.

But meanwhile, I sprayed a LOT of WD40 inside the door and waited for the warm Easter weather, and it works fine today.

Oh Dio!
 
MarkMas

MarkMas

Chief pedant
Messages
8,896
MarkMas said:
....I sprayed a LOT of WD40 inside the door and waited for the warm Easter weather, and it works fine today.
Click to expand...

...and then it went wrong again, just as I was negotiating a Heathrow carpark a month ago. And then last week it started working fine again.

Might be a bug.

57873
 
MarkMas

MarkMas

Chief pedant
Messages
8,896
Gone again (see here). Will just have to have whole window mechanicals replaced, I think.

Winter is coming.......
 
MarkMas

MarkMas

Chief pedant
Messages
8,896
Back to this.... Some news, and advice welcome!

(If I press the button up or down the driver's window opens fully. If I try to close it nothing happens, and then after a while it closes in one-inch increments.)

Tried WD40 and runner lubrication.
Tried replacing whole window winding mechanism.
Tried replacing control box.

Turns out the there is an anti-trap sensor bi-strip (part 188217) all the way along the top edge of the window INSIDE the window surround gasket (part 69288000) which sends 3 volts when relaxed and 0.1 volts when pressed. Mine (on driver's side) sends 1 volt all the time, so the electrics think that a baby's head is trapped in the window all the time.

We (that is to say Migliore) have removed the failed strip and hope to insert a new strip (a bargain at £75) tomorrow, but I don't really see how the strip (which is like a bendy but strong tapeworm) is going to slide into the groove narrow tube within in the gasket. If that doesn't work, then an option is to buy and install a used gasket+strip and see if that works.

Anyone done any of this?
Any thoughts on how to insert a bendy worm into a tight tube (careful now!)?

64535
 
E

Ebenezer

Member
Messages
4,486
That works up until you are on the M6 toll and parked too close to the machine to open the door so you open your window.

And you hear a bang

and you know that doesn't sound good

and it has that peculiar expensive sonic resonance that only Maserati's can make!

Eb
 
Wanderer

Wanderer

Member
Messages
5,791
Well, to be fair mine goes down very well (oo err!), just up is jerky. I know it's to do with the outer window seal, cos if I bend it back for ages and ages and give it some limber it works for a bit until my rubber gets stiff again (ooo err).

It did the Maserati windows reg crump on the ferry back to UK, had to drive from Holyhead to Wakey with the window full down in the dark and cold...

New reg. new motor, still not sorted!!

Worst was in France at Beauvais carpark, I had to reach across to pay and then squeezed back into seat and accidentally stomped on the accelerator, revs through the roof, thank God I'd either pulled both paddles or it had dropped itself into N.....
 
MarkMas

MarkMas

Chief pedant
Messages
8,896
Soooo....
Window now working.
Vic at Migliore managed to install the new sensor strip into the window seal, and all is well.

So lessons learned: If your window up-down is erratic, step 1 is probably to check for obstructions and maybe lubricate the window seals. But step 2 is definitely to get someone to look on the computer at the voltages coming off the finger-trap sensor strip: anything below 3 is probably a fault that is telling the car that there is something trapped. New part is £75 plus many hours to fit.
 
Wanderer

Wanderer

Member
Messages
5,791
MarkMas said:
Soooo....
Window now working.
Vic at Migliore managed to install the new sensor strip into the window seal, and all is well.

So lessons learned: If your window up-down is erratic, step 1 is probably to check for obstructions and maybe lubricate the window seals. But step 2 is definitely to get someone to look on the computer at the voltages coming off the finger-trap sensor strip: anything below 3 is probably a fault that is telling the car that there is something trapped. New part is £75 plus many hours to fit.
Click to expand...
£57 Shirley?
 
You must log in or register to reply here.