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Covering up slits in air duct to rear vents > < Block diagram of air distribution system

A4 Mk3

Air routing and air distribution in passenger compartment
Air routing and air distribution in passenger compartment
  Note
t  → Chapter „Air intake, air outlet and air routing in air conditioning unit“
t  Fitting locations of the individual components → Chapter „Components located in passenger compartment“ and → Chapter „Components of air conditioning unit and air intake box “.
t  The passenger compartment is vented by way of two vent frames (on the left and right of the luggage compartment in the area of the bumper) → Chapter (passenger compartment forced air extraction).
t  Passenger compartment air routing and air distribution differ for vehicles with an air conditioner of the „Deluxe“ or „Basic“ type.
t  Air conditioning units with an additional connection for glove compartment cooling are being gradually introduced as of 01.2008. This connection is sealed with a plug on vehicles not featuring glove compartment cooling → Chapter.
t  The following illustrations show the positions of the components on an Audi A5 Coupé. The layout may differ slightly on the Audi A5 Sportback, Audi A4, Audi Q5 etc. Unless otherwise indicated, the components are however to be removed and installed in the same manner as described for the Audi A5 Coupé.
   
1 - Defroster vent / windscreen
q   Air duct to windscreen
q   Removing and installing → General body repairs, interior; Rep. gr.70
q   Crushing or squashing of the air duct / defrost intermediate piece ( → Item and → Item) on installing the dash panel will result in uneven or inadequate air routing to the windscreen. → General body repairs, interior; Rep. gr.70
2 - Indirect ventilation vent
q   Only fitted on vehicles with air conditioner of „Deluxe“ type
q   On vehicles with an air conditioner of the „Deluxe“ type, air emerges via this vent. On vehicles with an air conditioner of the „Basic“ type, the opening in the air conditioning unit is sealed off (different air conditioning unit versions).
3 - Dash panel
q   With air ducts to the defroster vents and the various dash panel vents
q   Different versions depending on air conditioner model („Deluxe“ and „Basic“) → Electronic parts catalogue
q   Removing and installing → General body repairs, interior; Rep. gr.70
4 - Defroster vent / right side window
q   Removing and installing → General body repairs, interior; Rep. gr.70
5 - Right dash panel vent
q   Removing and installing dash panel vents → Chapter and → General body repairs, interior; Rep. gr.70
6 - Air duct / dash panel
q   With air ducts to the defroster vents and the various dash panel vents
q   Different versions depending on air conditioner model („Deluxe“ and „Basic“) → Electronic parts catalogue
q   The air duct forms part of the dash panel → Item and cannot be replaced separately → General body repairs, interior; Rep. gr.70.
q   Removing and installing dash panel → General body repairs, interior; Rep. gr.70
7 - Air duct / defrost intermediate piece („Basic“ version)
q   Different versions depending on air conditioner model („Deluxe“ and „Basic“) → Electronic parts catalogue
q   Removing and installing → General body repairs, interior; Rep. gr.70
q   Crushing or squashing of the air duct / defrost intermediate piece on installing the dash panel will result in uneven or inadequate air routing to the windscreen → General body repairs, interior; Rep. gr.70.
8 - Air duct / defrost intermediate piece („Deluxe“ version)
q   Different versions depending on air conditioner model („Deluxe“ and „Basic“) → Electronic parts catalogue
q   Removing and installing → General body repairs, interior; Rep. gr.70
q   Crushing or squashing of the air duct / defrost intermediate piece on installing the dash panel will result in uneven or inadequate air routing to the windscreen → General body repairs, interior; Rep. gr.70.
9 - Air duct to right dash panel vent
q   Removing and installing → Chapter (removing and installing air intake box of air conditioning unit)
10 - Air duct to right dash panel vent
q   Removing and installing → General body repairs, interior; Rep. gr.70
11 - Fresh air intake
q   The air is drawn in from the plenum chamber → Chapter.
12 - Air conditioning unit with air intake box
q   Different versions depending on air conditioner model („Deluxe“ and „Basic“) → Chapter and → Electronic parts catalogue
q   Removing and installing air conditioning unit → Chapter
q   Removing and installing air intake box → Chapter
q   Air intake, air outlet and air routing in air conditioning unit → Chapter
13 - Intake for air from passenger compartment (in air recirculation mode)
q   The air is drawn in under the glove compartment from the passenger's footwell.
14 - Front right footwell vent
q   Removing and installing → Chapter
15 - Air duct to rear vents
q   Different versions depending on air conditioner model („Deluxe“ and „Basic“) → Electronic parts catalogue
q   Vehicles with an air conditioner of the „Basic“ type have no air duct and no vent in the rear centre console.
  Note
This air duct is engaged at the air outlet openings of the air conditioning unit. The air duct is provided with slits for this purpose. Given an unfavourable flap position, a whistling noise may occur at these slits in certain settings, particularly on vehicles with an air conditioner of the „Deluxe“ type. For this reason the upper slits are covered over with adhesive tape at the factory (gradual introduction of adhesive strip as of Febr. 2009) → Chapter.
16 - Air duct to rear right footwell vent
q   Removing and installing, removing floor covering → General body repairs, interior; Rep. gr.70
17 - Rear right footwell vent
q   The air emerges beneath the passenger's seat.
q   Removing and installing, removing floor covering → General body repairs, interior; Rep. gr.70.
  Note
The rear right footwell vent can be removed to the rear without taking out the floor covering. It is only necessary to sever the connecting web at the floor covering. After fitting the footwell vent, re-attach the connecting web using a suitable adhesive.
18 - Air duct to vent in rear centre console
q   Removing and installing, removing rear centre console → General body repairs, interior; Rep. gr.70.
q   Only fitted with air conditioner of „Deluxe“ type
19 - Air duct to vent in rear centre console
q   Removing and installing, removing rear centre console → General body repairs, interior; Rep. gr.70.
q   Only fitted with air conditioner of „Deluxe“ type
20 - Vent in rear centre console
q   Removing and installing → Chapter and → General body repairs, interior; Rep. gr.70
q   Only fitted with an air conditioner of „Deluxe“ type (the opening in the centre console is sealed off in the case of an air conditioner of „Basic“ type).
q   With potentiometer for rear temperature selection -G538-
q   The potentiometer for rear temperature selection -G538- forms part of the vent and cannot be replaced separately → Electronic parts catalogue.
21 - Rear left footwell vent
q   The air emerges beneath the driver's seat.
q   Removing and installing, removing floor covering → General body repairs, interior; Rep. gr.70
  Note
The rear left footwell vent can be removed to the rear without taking out the floor covering. It is only necessary to sever the connecting web at the floor covering. After fitting the footwell vent, re-attach the connecting web using a suitable adhesive.
22 - Air duct to rear left footwell vent
q   Removing and installing, removing floor covering → General body repairs, interior; Rep. gr.70.
23 - Front left footwell vent
q   Removing and installing → Chapter.
24 - Air duct to „centre“ dash panel vent
q   On vehicles with an air conditioner of the „Basic“ type, the centre vent temperature sender -G191- is fitted in this air duct → Chapter.
q   On vehicles with an air conditioner of the „Deluxe“ type, the opening for the centre vent temperature sender -G191- in the air duct is sealed off (-G191- is not fitted in this case) → Electronic parts catalogue.
  Note
This air duct is provided with an opening. A whistling noise may occur in certain settings at this opening. For this reason this opening is sealed with a plug at the factory (gradual introduction as of Febr. 2009) → Chapter.
25 - Air duct to left dash panel vent
q   Removing and installing → General body repairs, interior; Rep. gr.70
26 - Air duct to left dash panel vent
q   Removing and installing → General body repairs, interior; Rep. gr.70
27 - Centre dash panel vent
q   Removing and installing dash panel vents → Chapter and → General body repairs, interior; Rep. gr.70
28 - Left dash panel vent
q   Removing and installing dash panel vents → Chapter and → General body repairs, interior; Rep. gr.70
29 - Defroster vent / left side window
q   Removing and installing → General body repairs, interior; Rep. gr.70

   

Covering up slits in air duct to rear vents > < Block diagram of air distribution system