Audi 243 Service Manual page 18

System components
In normal operation the compressor is
allowed to run only when the engine is
running.
Exceptions:
– Final control diagnosis
– Basic system setting
– In pre-run upon recognition of an
extremely low level
A special mounting consisting of spiral
springs and rubber damping elements
prevents the transfer of vibrations to the
bodywork.
You can find a description of the design and
function of the compressor as well as the
filling and discharging procedure in SSP 242.
Air filter/noise damper
Owing to the fitting location of the air filter/
noise damper in the spare wheel well, it
requires no maintenance.
18
Damping element
Spiral spring
Mounting
243_008
243_009