My 406 V6 makes a noise which I originally thought came from the
automatic gearbox. It sounds like a mixture between a grating and a
groaning noise - very hard to describe accurately! It only starts up
after driving the car for a little while - usually it has kicked in
within 3 minutes. It then comes and goes, sometimes quieter, sometimes
noisier. I have recently read that the air conditioning makes a similar
noise at times - does anyone have experience of this car, this noise,
this problem etc etc?
Thanks
Fin