Audi TT - Page 39

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⇒ “4.10 Plenum Chamber Water Drain, Checking and Clean‐
ing“, page 100 .
– Remove dust and pollen filter and check it for odor and con‐
tamination. Refer to
⇒ “5.9 Dust and Pollen Filter“, page 138 .
Note
On this vehicle, the dust and pollen filter is installed between
Fresh Air Blower -V2- and evaporator, therefore it must be re‐
moved for the cleaning.
– Clean the installation compartment for dust and pollen filter of
heating and A/C unit of leaves, dust and other contaminants.
Refer to ⇒ “5.9 Dust and Pollen Filter“, page 138 .
– Reseal opening on A/C unit through which dust and pollen filter
was removed.
– Start the engine.
– Adjust the Climatronic control module -J255- to “recirculation
mode“, and switch the A/C compressor off (the indicator lamp
in the AC is off).
– Open instrument panel vents and set the lowest temperature
possible on the Climatronic control module -J255- (“Cold“ tem‐
perature setting).
– Close the windows and the sunroof.
– Set Climatronic control module to lowest fresh air blow level
and select “Instrument panel vent“ for air flow direction.
Cleaning
– Shake the bottle of -VAS 6189/1- and then fill the -VAS 6189- .
Be sure to read the Operating Instructions that come with the
-VAS 6189- .
– Place -VAS 6189- in passenger side footwell.
– Start -VAS 6189- (according to operating instructions) and
route outlet hose belonging to it so vapor escaping via A/C unit
recirculated air opening (in passenger footwell behind glove
compartment) is drawn in by Fresh Air Blower -V2- .
– Close vehicle doors.
Note
The cleaning process takes about 15 to 20 minutes. It is complete
when vapor no longer comes out of outlet hose.
Finishing steps
– Switch -VAS 6189- off.
– Open vehicle doors and air out vehicle at least 10 minutes.
– Remove -VAS 6189- from vehicle and clean it according to
operating instructions.
– Switch off ignition.
– Install dust and pollen filter. Refer to
⇒ “5.9 Dust and Pollen Filter“, page 138 .
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
1. General Information 35