The A6 is an 05 I dont think it is a Cali engine. If the Audi Dealership cant figure it out, how is a reputable mechanic supose to? The car started a real rough idle now. Sometimes when running the A/C it switches to heat in some, or all of the vents... HELP!

 

Take it up with audi of america if they take your money more than once and haven't fixed the issue, they will take it up with the dealership and get a re-fund for all the repairs.

 

Using a text editor, such as "note pad" enter your long post, then save, then copy, then paste in to the "forum text editor". If the post fails, then your may recover your text and try again.