When I set temperature to "Lo", I get nice cold air from the passenger's vent but barely cool from the Driver's side.

Air con was serviced rencetly and is perfect.

I worked out that the driver's side temperature blend flap might be stuck in one position but observing the servo motor when changing temperature settings over the full range shows it to be moving end to end as it should do.

Anything else I should be considering please?

Hi Paul .   Perhaps the cabin filter is partially blocked ?

 

All the filters were changed when I bought the car Trevor.

Hi paul

its usually the dccv starting to fail and passing hot water

drivers and passenger side are seperate valves

are they both cold, when the engine is cold, if so, must be dccv passing

very common s-type fault

cheers

Joe

Thanks Joe but this is an XF mate

I get cold air on my xf drivers side and lukewarm air on the passengers including the back. Any thoughts please as per what the problem is