Audi Air conditioning 2003 A8 Workshop Manual page 36

Audi A8 2003 ➤
Air conditioning - Edition 09.2010
19 - Condenser
❑ Only to be removed after draining the refrigerant circuit, the vehicle is to be taken to a workshop equipped
with the necessary tools where the work can be performed by appropriately qualified personnel ⇒ Air
conditioner with refrigerant R134a .
❑ Different versions (depending on vehicle equipment, power steering fluid cooler may also be fitted) ⇒
Running gear; Rep. gr. 48 and ⇒ Electronic parts catalogue
❑ Detaching and re-attaching refrigerant lines
❑ Removing and installing condenser
20 - Radiator fan -V7-
❑ The request for fan cut-in is transmitted by the front operating and display unit, Climatronic control unit
-J255- via the data bus system to the engine control unit. The engine control unit then actuates the fans
or the radiator fan control unit -J293- ⇒ "Guided fault-finding" function of vehicle diagnostic, testing and
information system VAS 5051 and ⇒ Engine, mechanics.; Rep. gr. 19
❑ The relevant engine control unit switches the radiator fans (via the radiator fan control unit -J293- )
infinitely to the desired output. ⇒ "Guided fault-finding" function of vehicle diagnostic, testing and infor‐
mation system VAS 5051
❑ Different versions are fitted depending on vehicle equipment ⇒ Electronic parts catalogue
❑ Check actuation by the front operating and display unit, Climatronic control unit -J255- (reading measured
value block) ⇒ "Guided fault-finding" function of vehicle diagnostic, testing and information system
VAS 5051 and ⇒ Current flow diagrams, Electrical fault finding and Fitting locations
21 - Fresh air blower control unit -J126-
❑ Removing and installing
❑ Checking ⇒ "Guided fault-finding" function of vehicle diagnostic, testing and information system
VAS 5051
22 - Fresh air blower -V2-
❑ Removing and installing
❑ Checking ⇒ "Guided fault-finding" function of vehicle diagnostic, testing and information system
VAS 5051
23 - Dust and pollen filter
❑ Removing and installing
❑ Heed replacement intervals ⇒ Maintenance tables
❑ With activated charcoal filter element
24 - Label
❑ Indicates type of refrigerant and intended capacity
❑ For refrigerant R134a capacity and additional information for working on the refrigerant circuit, refer to
⇒ Air conditioner with refrigerant R134a
❑
Note
The adhesive label was gradually
discontinued in Model Year 2003 on
certain vehicles. For refrigerant
R134a capacity and notes on refrig‐
erant, refer to ⇒ Air conditioner with
refrigerant R134a
25 - Evaporator
❑ Only to be removed after draining the refrigerant circuit, the vehicle is to be taken to a workshop equipped
with the necessary tools where the work can be performed by appropriately qualified personnel ⇒ Air
conditioner with refrigerant R134a
❑ Removing and installing
❑ Cleaning evaporator of air conditioner with ultrasonic A/C cleaner -VAS 6189-
26 - Opening for air recirculation mode
30
Rep. gr.87 - Air conditioning system
⇒ page 166
⇒ page 167
⇒ page 55
⇒ page 54
⇒ page 31
⇒ page 31
⇒ page 173
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
⇒ page 32