Notes On Front Heater And A/C Unit: Notes

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"Convenience" Versions of the A/C Unit and Air Distribution Housing. Refer To "CONVENIENCE" A/C UNIT VERSIONS AND AIR DISTRIBUTION HOUSING .

Observe the notes for control and regulation of components in passenger compartment. Refer To NOTES ON A/C SYSTEM CONTROL AND REGULATION IN PASSENGER COMPARTMENT .

There are different version of the A/C unit (for left- and right-hand drive vehicles, vehicles equipped with the "Convenience" A/C system version or the "Basis" version etc.).

NOTE:

There Is A Label -A- On The Outside Of The A/C Unit With A Part Number -B- That Tells Which Version Is Installed.

Fig 1: Beginning 08.2007 Comfort A/C System With An Air Distribution Housing With Optimized Air Distribution (Running Change)

Courtesy of AUDI OF AMERICA, LLC

The part number -B- on the label -A- can be read, for example, when the CD changer is removed (depending on the vehicle equipment level). Refer To DVD/CD CHANGER .

Refer To OVERVIEW - FRONT ACTUATORS, "BASIS" VERSION
Refer To OVERVIEW - FRONT ACTUATORS, "CONVENIENCE" VERSION

NOTE:

Air guide in air conditioner and in vehicle. Refer To AIR GUIDE .

Air Conditioner, Removing and Installing. Refer To HEATER AND A/C UNIT, REMOVING AND INSTALLING .

A/C air intake housing, removing and installing. Refer To HEATER AND A/C UNIT AIR INTAKE HOUSING, REMOVING AND INSTALLING .

On this vehicle, the different actuators on the A/C unit are adapted and activated via a data wire. The different actuators are connected in sequence to the Climatronic Control Module -J255- A/C display and control head via this data wire (LIN Bus). The sequence differs between the different A/C unit versions. Refer To MAIN WIRING DIAGRAM FOR A/C SYSTEM ACTUATORS and The Appropriate Wiring Diagram(s).

FROM 01/2008 , A/C units which have an additional connection for the glove compartment cooling are being installed as a running change. On vehicles without glove compartment cooling, this connection is sealed with a plug. Refer To GLOVE COMPARTMENT COOLING CONNECTION ON AIR INTAKE HOUSING .

Depending on the production date, there are different versions of the levers and connecting elements on the A/C unit. Refer To LEVERS AND CONNECTING ELEMENTS ON THE A/C UNIT .

Revised A/C units are gradually being installed from MY 2012 (use depends on the vehicle version) (A/C unit part number "8T_ 820 005"). With the introduction of these A/C units, other actuators are also being installed. The actuator different versions can currently be installed on both A/C unit versions (interchanging is currently permitted). Refer To use the Vehicle Diagnostic Tester in the "Guided Fault Finding " function.

NOTE:

Depending On The Production Date, There Are Different Versions Of The Levers And Connecting Elements On The A/C Unit. Refer To LEVERS AND CONNECTING ELEMENTS ON THE A/C UNIT .