"RichardB" wrote in message
...
snip

Do you imply that the motor is drawing current and causing the volts to
drop? If this is the case have you tried firmly pulling down on the glass
as you operate the switch? Put a hand each side of the window and pull
down whilst getting someone to operate the switch. Some cars will isolate
the motor if stalled for a few seconds - so be quick.

Many thanks for all the advice - apart from angle grinder :-o

I have tried bypassing the car wiring & connecting the regulators motor
momentarily straight to the battery.

Regulator motor could be heard to "thunk" but no window movement!

I will try pulling down on the window as suggested by John.

The local Ford main dealer has quoted £269.73 for a new regulator!

A local motor factor wants £108 inc VAT, I prefer OEM but not at that
price!

Richard

Time to remove the trim and investigate. Fortunately it seems the motor is
still working (Thunk). Could it be something rusted and seized? Could a
cable have crossed on the winding mechanism