Manual sections

Wiring diagrams

• 6 Spd. Manual Transmission - 01e
• Abbreviations
• Air Conditioning
• Anti-Lock/traction Control
• Application
• Automatic Trans
• Auxiliary Emission Control Systems
• Axle Shafts
• Basic Trouble Shooting
• Brake System - on Board Diagnostic (OBD) - ABS & ESP
• Brakes
• Cabin Air Filter
• Charging System
• Check Lists
• Communication Devices
• Computer Relearn
• Cooling Fan
• Cruise Control Systems
• Diagnostic Connector Locations
• Door Locks & Anti-Theft Systems
• Drive Cycles
• Driveline/axles
• DTC Index
• Electrical Component Locations
• Emission Applications
• Engine
• Engine Performance
• Exhaust
• Exterior Body Panels
• Exterior/interior Trim
• Fuel Supply System - All Engines
• Fuel System
• Fuses & Circuit Breakers
• Gauges & Instrument Panels
• Identification
• Ignition System
• Maintenance
• Manual Trans
• MAP Guidelines
• Mechanical
• Mechanical - Hydraulic
• Metric Conversions
• Mirrors
• Mode 6
• Multiport Fuel Injection (mfi) - 4.2l v8 5v - Bbd
• On Board Diagnostic (OBD) - 2001 and Up
• On Board Diagnostic (OBD) - 4.2l v8 5v - Bbd
• On Board Diagnostic (OBD) - 5 Spd. Automatic Transmission, 01l All Wheel Drive
• On Board Diagnostic (OBD) - Central Locking System, Memory Seats, Ultrasonic Interior Monitor
• On Board Diagnostic (OBD) - HVAC
• On Board Diagnostic (OBD) - Radio, Navigation, Steering & Telematics
• On Board Diagnostic (OBD) - Suspension & Tire Pressure Monitoring
• Reset Procedures
• Restraints
• Seats
• Self Leveling Suspension
• Specifications
• Steering
• Steering Column Switches
• Sun Roof/t-Top/convertible Top
• Suspension Front
• Suspension Rear
• Testing & Diagnostics
• Timing Belt
• Transmission
• Warning System
• Wheel Alignment
• Wiper/washer Systems
• Wiring Diagrams - Engine Performance

Repair manual

Air Conditioning Audi S6 C5

Step-by-step instructions on "Air Conditioning" for Audi S6 C5 (1999–2004). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

167subsections

167articles

160illustrations

A/C system, safety precautions

1 article

• A/C system, safety precautions

A/C system, general repair guidelines

1 article

• A/C system, general repair guidelines

Commercial designation

1 article

• Commercial designation

Color

1 article

• Color

Airborne properties

1 article

• Airborne properties

Solubility of refrigerant oil

1 article

• Solubility of refrigerant oil

Effects on the environment

1 article

• Effects on the environment

Toxicity

1 article

• Toxicity

Temperature/pressure relationship

1 article

• Temperature/pressure relationship

Effects on plastics

1 article

• Effects on plastics

Effects on metal

1 article

• Effects on metal

Critical temperature/critical pressure

1 article

• Critical temperature/critical pressure

Water solubility

1 article

• Water solubility

Flammability

1 article

• Flammability

Refrigerant containers

1 article

• Refrigerant containers

Leak detection

1 article

• Leak detection

A/C refrigerant oil (PAG), properties

1 article

• A/C refrigerant oil (PAG), properties

Refrigerant system with restrictor and accumulator

1 article

• Refrigerant system with restrictor and accumulator 1

A/C compressor

1 article

• A/C compressor 1

A/C condenser

1 article

• A/C condenser 2

Evaporator

1 article

• Evaporator 1

Accumulator

1 article

• Accumulator 1

O-rings

1 article

• O-rings 1

Hoses and lines

1 article

• Hoses and lines

Pressure relief valve

1 article

• Pressure relief valve 1

A/C system, switches and valve connections

1 article

• A/C system, switches and valve connections

A/C pressure switch -F129

1 article

• A/C pressure switch -F129 1

Valve connection for pressure switch

1 article

• Valve connection for pressure switch 1

A/C compressor speed sensor -G111

1 article

• A/C compressor speed sensor -G111

A/C system, quick coupling connections

1 article

• A/C system, quick coupling connections

Connection with Schrader valve (example)

1 article

• Connection with Schrader valve (example) 1

A/C refrigerant system, pressure and temperature relationships

1 article

• A/C refrigerant system, pressure and temperature relationships 1

A/C system with restrictor and accumulator, refrigerant flow

1 article

• A/C system with restrictor and accumulator, refrigerant flow

Table of pressure and temperature relationships

1 article

• Table of pressure and temperature relationships 1

Refrigerant circuit, servicing

1 article

• Refrigerant circuit, servicing

Compressor, with A/C clutch -N25

1 article

• Compressor, with A/C clutch -N25

Compressor, with A/C compressor regulator valve -N280

1 article

• Compressor, with A/C compressor regulator valve -N280

A/C clutch -N25-, servicing (Denso compressor)

1 article

• A/C clutch -N25-, servicing (Denso compressor) 1

Loosen and tighten hex bolt

1 article

• Loosen and tighten hex bolt 1

Removing clutch plate

1 article

• Removing clutch plate 1

Installing magnetic coil

1 article

• Installing magnetic coil 3

High pressure sensor -G65-, removing and installing

1 article

• High pressure sensor -G65-, removing and installing 2

Check function

1 article

• Check function 1

O-ring seals for refrigerant circuit

1 article

• O-ring seals for refrigerant circuit 1

A/C system components (in engine compartment)

1 article

• A/C system components (in engine compartment) 2

Evaporator housing drain valve, checking, removing and installing

1 article

• Evaporator housing drain valve, checking, removing and installing 1

Air extraction vent, checking

1 article

• Air extraction vent, checking 2

Dust and pollen filter element, removing and installing

1 article

• Dust and pollen filter element, removing and installing 1

Dust and pollen filter with active carbon filter element

1 article

• Dust and pollen filter with active carbon filter element

Sensor for air quality -G238-, removing and installing

1 article

• Sensor for air quality -G238-, removing and installing 1

Removing and installing

1 article

• Removing and installing 1

A/C system components (in passenger compartment)

1 article

• A/C system components (in passenger compartment) 3

A/C control head -E87-, removing and installing

1 article

• A/C control head -E87-, removing and installing

Removing and installing, Vehicles without Radio Navigation system

1 article

• Removing and installing, Vehicles without Radio Navigation system 1

Removing and installing, Vehicles with Radio Navigation system

1 article

• Removing and installing, Vehicles with Radio Navigation system 3

Control module for fresh air blower -J126-, removing and installing

1 article

• Control module for fresh air blower -J126-, removing and installing 1

Fresh air blower -V2-, removing and installing

1 article

• Fresh air blower -V2-, removing and installing 1

Sender for outlet temperature, floor outlet -G192-, removing and installing

1 article

• Sender for outlet temperature, floor outlet -G192-, removing and installing 1

Left vent temperature sensor -G150-, removing and installing

1 article

• Left vent temperature sensor -G150-, removing and installing 1

Right vent temperature sensor -G151-, removing and installing

1 article

• Right vent temperature sensor -G151-, removing and installing 1

Evaporator vent temperature sensor -G263-, removing and installing

1 article

• Evaporator vent temperature sensor -G263-, removing and installing 1

Fresh air intake duct temperature sensor -G89-, removing and installing

1 article

• Fresh air intake duct temperature sensor -G89-, removing and installing 1

Sunlight photo sensor -G107-, removing and installing

1 article

• Sunlight photo sensor -G107-, removing and installing 1

Defroster flap motor -V107-, removing and installing

1 article

• Defroster flap motor -V107-, removing and installing 1

Notes for installation

1 article

• Notes for installation 2

Actuator for temperature flap right -V159-, removing and installing

1 article

• Actuator for temperature flap right -V159-, removing and installing 1

Central air flap motor -V70-, removing and installing

1 article

• Central air flap motor -V70-, removing and installing 1

Air flow flap motor -V71-, removing and installing (vehicles up to model year 2002)

1 article

• Air flow flap motor -V71-, removing and installing (vehicles up to model year 2002) 2

Notes on installation

1 article

• Notes on installation

Recirculation flap motor -V113-, removing and installing (vehicles from model year 2002)

1 article

• Recirculation flap motor -V113-, removing and installing (vehicles from model year 2002) 1

Instrument panel vent removal tool, making

1 article

• Instrument panel vent removal tool, making 1

Center instrument panel vent, removing and installing

1 article

• Center instrument panel vent, removing and installing 2

Left instrument panel vent, removing and installing

1 article

• Left instrument panel vent, removing and installing 2

Right instrument panel vent, removing and installing

1 article

• Right instrument panel vent, removing and installing 1

Left and right side window defroster vents, removing and installing

1 article

• Left and right side window defroster vents, removing and installing 1

Heater core, removing and installing

1 article

• Heater core, removing and installing 2

Removing heater core

1 article

• Removing heater core 7

Installing heater core

1 article

• Installing heater core

Changes implemented from June 1998

1 article

• Changes implemented from June 1998 6

Changes implemented from model year 2002

1 article

• Changes implemented from model year 2002

Air distribution in air conditioner

1 article

• Air distribution in air conditioner 1

Air ducts in vehicle interior

1 article

• Air ducts in vehicle interior 1

A/C system cooling performance, testing

1 article

• A/C system cooling performance, testing

Test requirements

1 article

• Test requirements

Preparatory steps

1 article

• Preparatory steps 4

Cooling performance checking (vehicles from model year 2002)

1 article

• Cooling performance checking (vehicles from model year 2002) 3

Notes

1 article

• Notes 1

Continuation for vehicles with compressor using A/C Clutch -N25

1 article

• Continuation for vehicles with compressor using A/C Clutch -N25 3

Identifying malfunctions at temperature increase behind condenser

1 article

• Identifying malfunctions at temperature increase behind condenser

A/C refrigerant system, leak testing

1 article

• A/C refrigerant system, leak testing 1

A/C refrigerant system, testing with pressure gauges

1 article

• A/C refrigerant system, testing with pressure gauges

Measuring pressure and temperature in a "switched-on" refrigerant system

1 article

• Measuring pressure and temperature in a "switched-on" refrigerant system

Measuring pressure and temperature in a closed container or "switched-off" refrigerant system

1 article

• Measuring pressure and temperature in a closed container or "switched-off" refrigerant system

A/C refrigerant system, checking pressures

1 article

• A/C refrigerant system, checking pressures

Preparation work

1 article

• Preparation work

Checking

1 article

• Checking

If A/C refrigerant system base pressure is less than specified on chart, system is low on refrigerant

1 article

• If A/C refrigerant system base pressure is less than specified on chart, system is low on refrigerant

If A/C refrigerant system pressure corresponds to or is higher than base pressure specified on chart

1 article

• If A/C refrigerant system pressure corresponds to or is higher than base pressure specified on chart

Pressure in A/C system corresponds to chart or is higher

1 article

• Pressure in A/C system corresponds to chart or is higher

A/C refrigerant system (R-134a), discharging

1 article

• A/C refrigerant system (R-134a), discharging

Discharging

1 article

• Discharging 1

A/C refrigerant system (R-134a), evacuating and recharging

1 article

• A/C refrigerant system (R-134a), evacuating and recharging

Evacuating and recharging

1 article

• Evacuating and recharging

A/C refrigerant system (R-134a), flushing with compressed air and nitrogen

1 article

• A/C refrigerant system (R-134a), flushing with compressed air and nitrogen

A/C refrigerant system, servicing

1 article

• A/C refrigerant system, servicing

Determining dimensions of flat tubes from condenser

1 article

• Determining dimensions of flat tubes from condenser 2

Restrictor version

1 article

• Restrictor version 4

Released refrigerant oil (PAG)

1 article

• Released refrigerant oil (PAG)

Vehicles with compressors with A/C clutch -N25

1 article

• Vehicles with compressors with A/C clutch -N25 1

Refrigerant lines from Denso compressor (with A/C clutch -N25-), removing and installing

1 article

• Refrigerant lines from Denso compressor (with A/C clutch -N25-), removing and installing 1

Denso compressor, removing and installing from bracket (8 cyl. engine with A/C clutch - N25-)

1 article

• Denso compressor, removing and installing from bracket (8 cyl. engine with A/C clutch - N25-)

Removing

1 article

• Removing 2

Compressor (with A/C Clutch -N25-), removing and installing

1 article

• Compressor (with A/C Clutch -N25-), removing and installing

Vehicles with compressor drive via a belt

1 article

• Vehicles with compressor drive via a belt

Compressor (installed on right side of engine), removing and installing from bracket

1 article

• Compressor (installed on right side of engine), removing and installing from bracket 1

Compressor (installed on left side of engine), removing and installing from bracket

1 article

• Compressor (installed on left side of engine), removing and installing from bracket 2

Audi Allroad with 8 cyl. engine (compressor drive via a drive shaft)

1 article

• Audi Allroad with 8 cyl. engine (compressor drive via a drive shaft)

Belt pulley, replacing

1 article

• Belt pulley, replacing 1

Pulley, removing from compressor and installing

1 article

• Pulley, removing from compressor and installing 3

Compressor drive unit, checking, replacing

1 article

• Compressor drive unit, checking, replacing 1

Compressor drive shaft, loosening and tightening

1 article

• Compressor drive shaft, loosening and tightening

Drive shaft, loosening

1 article

• Drive shaft, loosening 1

Drive shaft, tightening

1 article

• Drive shaft, tightening 1

Installing

1 article

• Installing

Drive plate with overload protection, removing and installing

1 article

• Drive plate with overload protection, removing and installing 2

Drive plate to compressor, removing and installing

1 article

• Drive plate to compressor, removing and installing 3

Drive plate with roller bearing, removing and installing

1 article

• Drive plate with roller bearing, removing and installing 1

A/C refrigerant circuit, servicing (compressor with A/C compressor regulator valve -N280-)

1 article

• A/C refrigerant circuit, servicing (compressor with A/C compressor regulator valve -N280-) 1

Condenser, removing and installing

1 article

• Condenser, removing and installing

Version "1" (with bolted connection and bracket), removing

1 article

• Version "1" (with bolted connection and bracket), removing 1

Version "2" (with block and bolt connection), removing

1 article

• Version "2" (with block and bolt connection), removing 3

Version "3" (with two block connections), removing

1 article

• Version "3" (with two block connections), removing 2

Installing (all models)

1 article

• Installing (all models)

Disconnecting

1 article

• Disconnecting 1

Connecting

1 article

• Connecting 2

Refrigerant lines on compressor, disconnecting and connecting (compressor with A/C compressor regulator valve -N280-)

1 article

• Refrigerant lines on compressor, disconnecting and connecting (compressor with A/C compressor regulator valve -N280-) 2

Removing (compressor drive via belt)

1 article

• Removing (compressor drive via belt)

A/C system, running after installation of compressor

1 article

• A/C system, running after installation of compressor 7

Refrigerant lines for condenser, removing and installing

1 article

• Refrigerant lines for condenser, removing and installing

Removing refrigerant lines on version "1" (two connectors)

1 article

• Removing refrigerant lines on version "1" (two connectors) 1

Removing refrigerant lines on version "2" (two block connections on left side)

1 article

• Removing refrigerant lines on version "2" (two block connections on left side) 1

Removing refrigerant lines on version "3" (one block connection on left side and one on right side)

1 article

• Removing refrigerant lines on version "3" (one block connection on left side and one on right side) 4

Removing, versions "1" and "2"

1 article

• Removing, versions "1" and "2" 1

Removing, version "3"

1 article

• Removing, version "3" 5

Capacities

1 article

• Capacities

Condenser version

1 article

• Condenser version 2

Air conditioner unit

1 article

• Air conditioner unit 1

Refrigerant oil

1 article

• Refrigerant oil

Compressor bracket, removing and installing (6 cyl. engine, compressor with A/C clutch -N25-)

1 article

• Compressor bracket, removing and installing (6 cyl. engine, compressor with A/C clutch -N25-) 1

Complete air conditioner unit, removing and installing

1 article

• Complete air conditioner unit, removing and installing 4

A/C unit, disassembling and assembling

1 article

• A/C unit, disassembling and assembling 1

Air distribution housing, disassembling and assembling

1 article

• Air distribution housing, disassembling and assembling 1

Air duct with intake housing, disassembling and assembling

1 article

• Air duct with intake housing, disassembling and assembling

Air duct and intake housing (vehicles up to model year 2001)

1 article

• Air duct and intake housing (vehicles up to model year 2001) 1

Air duct and intake housing (vehicles from model year 2002)

1 article

• Air duct and intake housing (vehicles from model year 2002) 1

A/C does not cool (cooling has stopped completely)

1 article

• A/C does not cool (cooling has stopped completely)

Insufficient cooling during all driving or engine speed (RPM)

1 article

• Insufficient cooling during all driving or engine speed (RPM)

A/C compressor noisy

1 article

• A/C compressor noisy

A/C compressor noisy immediately after switching A/C ON and/or when driving around corners or braking "refrigerant shock" - refrigerant system overcharged

1 article

• A/C compressor noisy immediately after switching A/C ON and/or when driving around corners or braking "refrigerant shock" - refrigerant system overcharged

With an otherwise properly operating A/C system, water sprays out of instrument panel vents

1 article

• With an otherwise properly operating A/C system, water sprays out of instrument panel vents

A/C system, replacing components

1 article

• A/C system, replacing components

For leaking or damaged components (except for compressor and accumulator), A/C system was completely empty (no charge)

1 article

• For leaking or damaged components (except for compressor and accumulator), A/C system was completely empty (no charge)

For leaky or damaged components (except for the compressor and accumulator) there is still refrigerant in the A/C system

1 article

• For leaky or damaged components (except for the compressor and accumulator) there is still refrigerant in the A/C system

Replace compressor, without it being necessary to blow through the refrigerant system with compressed air and nitrogen (e.g. exterior damage after an accident)

1 article

• Replace compressor, without it being necessary to blow through the refrigerant system with compressed air and nitrogen (e.g. exterior damage after an accident)

Replace compressor due to leaks or interior damage (e.g. noises or no power)

1 article

• Replace compressor due to leaks or interior damage (e.g. noises or no power)

Replace accumulator and restrictor after blowing through the A/C system e.g. caused by penetrating moisture (the A/C system was open over a long period of time) or contamination (d

1 article

• Replace accumulator and restrictor after blowing through the A/C system e.g. caused by penetrating moisture (the A/C system was open over a long period of time) or contamination (d

Replace accumulator, without it being necessary to blow through A/C system with compressed air and nitrogen (e.g. damage caused by an accident), no refrigerant flowed out and no mo

1 article

• Replace accumulator, without it being necessary to blow through A/C system with compressed air and nitrogen (e.g. damage caused by an accident), no refrigerant flowed out and no mo