Hi I've had an Audi A6 3 litre diesel for 3 years with various problems 

Now I have no hot air on the driver's side but if I turn the heat down to cold on the passenger side then I have heat on the driver's side can anyone please help 

Have you had the heater matrix checked? 

Is the car engine temperature staying consistently at 90 degrees? 

Haven't had the heater matrix checked 

Car temperature is fine had 2 diagnostics one said not sure the other one said matrix dash out and 1,000 but he couldn't guarantee it was the matrix 

Audi want 165.00 for an hour but again can't guarantee it will be done in an hour may need further investigation 

Does it maintain proper heat on the drivers side when you turn passenger side to cold?

Yes I said this on the post I put up is there a genuine Audi mechanic on this site or any one that has had the same problem or am I wasting my time on this Audi site 

Ok. Best of luck.

1 hour ago, Tm Gordon said:

Yes I said this on the post I put up is there a genuine Audi mechanic on this site or any one that has had the same problem or am I wasting my time on this Audi site 

If you want "genuine" Audi expertise without wasting your time please go to Audi and pay for it. On the other hand if you want free help from fellow Audi enthusiasts you are in the right place, but you might have to wait a while until somebody chooses to reply.

Cliff coggin go to bed 

1 hour ago, cliffcoggin said:

 you might have to wait a while until somebody chooses to reply.

With his attitude that may be a very long wait.

Don't know if this helps mate we had no heating changed the heater matrix though no luck

 

turned out it was the coolant control valve sits under windscreen on passenger side under scruttle panel. Easy access and removal 

Brand like febi cost 60/70 approx 

Though we had no heat at all . So may not apply to your situation 

Hope that helps 

Edited February 15, 20251 yr by Rizwan Patel

Thanks for this 

I’m closing this thread due to the OP’s disrespectful attitude. 

Hmm, similar issue here. Put the heating to auto get cold air, irrespective of temperature setting, engine is up to temp, coolant full.

Change to manual settings, hot air but only on the passenger side, passenger footwell, side vents, passenger centre and rear all toasty, drivers cold so closed them.

No fault codes. Suggestions that the system needs flushing? Or a stuck heater door but the one for the drivers side needs the foot pedals and column removing for access so that's not happening. Having to drive with a blanket FFS. Any ideas