Hi Folks. The heater A/C seems to be playing up. Seats warm up great both sides. When on “HI” the passenger side and rear heater blows out lovely and warm but the drivers side only blows luke warm even on long trips. I have both synced still the same. Any thoughts please?

It will probably be the flap motor that has failed. Connecting up a scanner (VCDS or ODBEleven) will give you the codes to confirm. Its a relatively easy fix. Common fault.

Other things to check: make sure you have removed the Silica bag from the header tank and if the coolant looks a horrible sludgy brown colour- i.e. not pink, it is also possible that the silica bag has burst and has blocked up the cabin heat exchanger.

Comment removed as previous post has answered.

5 hours ago, varaderoguy said:

It will probably be the flap motor that has failed. Connecting up a scanner (VCDS or ODBEleven) will give you the codes to confirm. Its a relatively easy fix. Common fault.

Other things to check: make sure you have removed the Silica bag from the header tank and if the coolant looks a horrible sludgy brown colour- i.e. not pink, it is also possible that the silica bag has burst and has blocked up the cabin heat exchanger.

That’s great, thanks buddy I’ll get it checked out 👍