Checking operation of air recirculation flap control motor V113 — AUDI

Checking operation of
air recirculation flap control motor
V113
Special tools and workshop equipment required
Voltage tester
V.A.G 1527 B
If applicable, remove the glove compartment
General body repairs, interior
Rep. gr.
68
.
Switch on ignition.
Set the switch for the
fresh air blower
V2
G
to speed
“3”
.
Move the rotary air distribution control
B
to the
“air distribution to dash panel vents”
position.
Fresh-air/air recirculation button
F
not pressed (fresh air mode, lamp in button does not light)
Air is drawn in via the fresh-air intake from the plenum chamber.
Press the fresh-air/air recirculation button
F
(air recirculation mode, lamp in button lights).
Air is drawn in from the area behind the glove compartment (air recirculation mode).
Move the rotary air distribution control
B
to the position
“air distribution to windscreen”
D
.
The lamp in the fresh-air/air recirculation button
F
goes out, the fresh-air/air recirculation flap moves to the
“fresh air mode”
position.
Note
If operation is not OK, check the electronics in the
air conditioning system control unit
J301
and actuation of the
air recirculation flap control motor
V113
Chapter
.
With the majority of country codes, the
“air recirculation”
function is automatically cancelled approx. 20 minutes after switching the ignition on again (it only remains permanently stored with the code for Japan). If the windows mist up after switching the ignition back on, air recirculation mode is to be deactivated manually.
If operation of the fresh-air/air recirculation flap is OK and the windows mist up, check the following:
Contamination of dust and pollen filter
Chapter
Forced air extraction from passenger compartment
Chapter
Ingress of water into passenger compartment
Fresh-air intake from plenum chamber and plenum chamber water drain
Chapter
Seals between individual fresh-air intake components and vehicle for damage and leaks.
Actuation of the
air conditioner compressor regulating valve
N280
and operation of the air conditioner
Chapter
(checking cooling output)
Note
Under certain operating conditions, residual moisture in the refrigerant circuit may lead to the formation of ice at
N280
(and at the expansion valve). Such ice formation impedes air conditioner compressor control. The evaporator is excessively cooled and ices up. Icing-up of the evaporator may be the cause of the windows misting up.