UrS6 Heater is useless

[iain1067]

No the heater is not self bleeding, under the plastic rain cover by the windscreen where the wiper motor is left hand side of the engine bay as you look at you will see the 2 pipes that go through the bulkhead, one or both will have a bleed screw on it, bleed the heater that way with the heater full on and engine running, you may need to top the coolant afterwards. If the heater is full of air you may need to give it a couple of goes, revving the engine a bit helps also to pump the coolant round.

[urS6Tom]

I had this too on my S4, its really not very useful for this time of the year..

Apparently the heater matrix is self bleeding so it shouldn't be that.

God luck..

I've got the same problem with mine. Had it last year and got it fixed (needed new control flap motor i think). This winter it's back again! Going to pull climate control codes and see if anything is amiss.

[s2_bo]

I had this too on my S4, its really not very useful for this time of the year..

Apparently the heater matrix is self bleeding so it shouldn't be that.

God luck..

[HMS-S6]

Last year i took the S6 off the road over winter as i do most years. One of the jobs i did was a cambelt change. As a precaution i changed the water pump with one i ordered by parn number from GSF.

Ever since i did that the heater has been rubish unless the car is over 4500rpm
Is there a slightly different pump that i could have ordered my mistake? Or is it more likely to be something else that failed at the same time as a coincidence?

The engine is still warming up as normal.