Home/Audi/A8/Audi A8 D3 facelift 2 (2007-2010)/Repair manual/Heating Air Conditioning/Safety precautions

Contents

Wiring diagrams Section: Heating Air Conditioning

Equipment

Function

Available functions

Safety precautions

Basic Setting

End Output

Climatronic Control Module J255 , coding

Read Measuring Value Block

Read measuring value block (Climatronic Control Module J255)

List of available display group numbers "001" to "019"

Explanatory notes for compressor shut-off conditions in display group "002"

List of available display group numbers "020" to "039"

Coding information from control modules for seat ventilation (optional equipment)

List of available display group numbers "040" to "050"

Explanatory notes on code "1" (optional equipment)

Explanatory notes on code "2" (country version and vehicle model)

Explanatory notes on code "3" (rear seat heating/rear seat ventilation, seat covers and window glass)

Display groups front for Climatronic Control Module J255 which are not currently not intended for service use

Reading measured value block (Rear A/C Control Head (Climatronic) E265)

List of available display group numbers "001" to "007" ("008")

Display in display groups "006" to "008" for vehicles manufactured until November 2002 (gradual conversion)

Adaptation procedure in the various adaptation channels

A/C System, electrical checks

Heated seats, checking

Rear footwell auxiliary heater (where applicable), checking

Heated Windshield Z2 , checking

A/C Refrigerant Circuit

A/C refrigerant circuit, safety measures

A/C refrigerant circuit, evacuating

A/C refrigerant circuit, repairs

Painting work on vehicles with air conditioner

A/C Refrigerant Circuit, general notes

A/C Refrigerant Circuit, servicing

Exploded view of components

High Pressure Sensor G65 , removing and installing

Pressure signal of High Pressure Sensor G65 , checking

Refrigerant circuit O-rings

Removing compressor from bracket and installing in vehicles with 8-cyl. MPI engine

Compressor, removing from bracket and reinstalling

A/C Compressor Regulator Valve N280 cut-in signal, checking

Belt pulley, replacing (Version "1")

A/C compressor pulley, removing from compressor and re-installing (Version "1")

A/C compressor pulley, replacing (Version "2")

A/C compressor pulley, removing from compressor and re-installing (Version "2")

A/C compressor pulley, removing and installing (Version "2")

Components for control and regulation of air conditioner not located in passenger compartment

Dust and pollen filter, removing and installing

Dust and pollen filter with activated charcoal filter element

A/C system evaporator, cleaning using Ultrasonic HVAC Cleaning System VAS 6189

Possible causes of odor

Evaporator, cleaning

Removing and installing

Air Quality Sensor G238 , checking

Checking

Removing

Installing

Air Flow Flap Motor V71 with Back Pressure Flap Motor Position Sensor G113 , removing and installing

Fresh Air Intake Duct Temperature Sensor G89 removing and installing

Recirculation Flap Motor V113 removing and installing

Cover with recirculated-air flap, removing and installing

Fresh Air Blower V2 , removing and installing

Pump/valve unit, removing and installing

Pump valve unit, replacing

Components for control and regulation of air conditioner located in passenger compartment

Left Center Vent Motor V110 , removing and installing

Right Center Vent Motor V111 , removing and installing

Center Outlet Temperature Sensor G191 , removing and installing

Sunlight Photo Sensor G107 , removing and installing

Interior Temperature Sensor Fan V42 , removing and installing

Climatronic Control Module J255 , removing and installing

Climatronic Control Module J255 , removing

Left Rear Footwell Heater Z42/Right Rear Footwell Heater Z43 , removing and installing

Left Rear Center Console Temperature Sensor G311 and Right Rear Center Console Temperature Sensor G312 removing and installing

Left Rear Warm/Cold Flap Air Outlet Motor V220 , removing and installing

Right Rear Warm/Cold Flap Air Outlet Motor V221 , removing and installing

Rear A/C Control Head (Climatronic) E265 , removing and installing

Removing, checking

Air conditioner unit components located in passenger compartment

Defroster Flap Motor V107 removing and installing

Left Front Defrost/Upper Body Shut-off Flap Motor V200 removing and installing

Right Front Defrost/Upper Body Shut-off Flap Motor V199 removing and installing

Left Footwell Flap Motor V108 , removing and installing

Right Footwell Flap Motor V109 , removing and installing

Temperature Regulator Flap Motor V68 , removing and installing

Left Vent Temperature Sensor G150 , removing and installing

Right Vent Temperature Sensor G151 , removing and installing

Evaporator Vent Temperature Sensor G263 , removing and installing

Left Rear Air Outlet Motor V218 and Right Rear Air Outlet Motor V219 , removing and installing

Heater Core, removing and installing

Air distribution system, block diagram

Air routing and air distribution in passenger compartment

A/C cooling output, checking

Measures to be taken in the event of temperature increase downstream of evaporator

A/C system heat output and pump valve unit, checking

Servicing refrigerant circuit

Refrigerant lines, disconnecting and connecting at compressor

A/C compressor, removing and installing (basic guidelines)

Compressor, removing from bracket and re-installing - vehicles with 12-cyl. engine

Compressor, removing and installing - vehicles with 10-cyl. engine (Audi S8)

Compressor drive unit, checking, replacing

Compressor drive shaft, loosening

Drive plate with overload protection, removing and installing

Attaching

Drive plate with overload protection, checking run-out and adjusting

Drive plate, removing from compressor and installing

Drive plate with roller bearing, removing and installing

Detaching refrigerant lines from condenser/re-attaching

Detaching

Condenser, removing and installing

Restrictorss, removing and installing

Accumulator, removing and installing

Disconnecting

Connecting

Heating and A/C unit, removing and installing

Covers in plenum chamber, fresh-air blower and evaporator, removing and installing

Sealing connection of covers

All sections

Safety precautions Audi A8 D3 facelift 2

Heating Air Conditioning

Safety precautions

Pay attention to the following if testers and measuring instruments have to be used in the course of a test drive

CAUTION

Always attach testers and measuring instruments to back seat and have them operated from there by a second person. If testers and measuring instruments were to be operated from front passengers seat, person sitting there could suffer injury in the event of an accident due to triggering of front passengers airbag.