My '96 A6 Tdi has just developed a problem with the climate control.
In "Full Cold" it does what it says on the box, but with any
temperature selected it blows fully hot - it does this with either AC
selected or not.
The diagnostic code on the climate control unit itself displays 8.5 -
"Temperature Regulator Flap, static block".
Does anyone have any clues about fixing this, or can anyone recommend
someone in NW England (Cheshire) who might be able to cure the
problem. Thanks.

Mick