Routing of air flow in air conditioning unit (rear) — AUDI

Routing of air flow in air conditioning unit (rear)
Note
The rear air conditioning unit and the
rear Climatronic operating and display unit
E265
are optional extras.
The temperature of the air from the rear vents is regulated by the
rear Climatronic operating and display unit
E265
by way of various settings and measured values
Vehicle diagnostic tester
in
“Guided Fault Finding”
mode.
The various flaps in the vents of the rear air conditioning unit are actuated by control motors operated by
E265
Chapter
“
Overview of fitting locations - control motors at rear
”
and
Vehicle diagnostic tester
in
“Guided Fault Finding”
mode.
Incorporation of air conditioner (rear) into coolant and refrigerant circuit
Chapter
“
Incorporation of air conditioner (rear) into refrigerant and coolant circuit
”
Air inlet from front air conditioning unit into rear air conditioning unit (fresh air mode)
Air inlet from area beneath centre console (air recirculation mode)
Rear fresh air blower
V80
Chapter
“
Removing and installing
rear fresh air blower
V80
”
Checking function
Vehicle diagnostic tester
in
“Guided Fault Finding”
mode
Air conditioning unit (rear)
Chapter
“
Overview of fitting locations - control motors at rear
”
Air outlet to footwell vent beneath right seat (front passenger's seat)
Air outlet to vent in right B-pillar
Air outlet to footwell vent beneath left seat (driver's seat)
Air outlet to vent in left B-pillar
Air outlet to vent in centre console (right)
Air outlet to vent in centre console (left)
Heat exchanger in air conditioning unit (rear)
Chapter
“
Removing and installing heat exchanger
”
Evaporator in air conditioning unit (rear)
Removing and installing (only possible with rear air conditioning unit removed)
Chapter
“
Removing and installing evaporator
”
Upper temperature flap
The temperature flap is shown in the
“heating”
position
One temperature flap each for the left and right side is provided for separate regulation of the temperature from the left and right vents
The upper and lower temperature flap on one side are actuated by one control motor in each case. They are connected by way of a cam plate and an actuating arm
Chapter
“
Overview of fitting locations - control motors at rear
”
.
Lower temperature flap
The temperature flap is shown in the
“heating”
position
Two temperature flaps each for the left and right side are provided for separate regulation of the temperature from the left and right vents
The upper and lower temperature flap on one side are actuated by one control motor in each case. They are connected by way of a cam plate and an actuating arm
Chapter
“
Overview of fitting locations - control motors at rear
”
.
Air outlet from evaporator
In this case to the heat exchanger, as the temperature flaps are shown in
“heating”
position
Condensation drain beneath evaporator
Air outlet from
rear fresh air blower
V80
into evaporator
Condensation drain beneath
rear fresh air blower
V80
Air inlet into
rear fresh air blower
V80
From the front air conditioning unit or the area beneath the centre console depending on the position of the air recirculation flaps
Air recirculation flaps in rear air conditioning unit
This illustration shows the two air recirculation flaps in the
“air intake from front air conditioning unit”
position.
The two air recirculation flaps are operated by the
rear air recirculation flap control motor
V421
which is actuated by the
rear Climatronic operating and display unit
E265
.
When the air recirculation flaps are open, the air is not drawn in by the
rear fresh air blower
V80
from the front air conditioning unit, but rather beneath the centre console.