Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2008A3 BASE, 2.0 E, AUTOMATIC DCTREPAIR AND DIAGNOSISHEATING, VENTILATION & A/C (HVAC)HVAC CONTROL SYSTEMSAIR CONDITIONING
2008 Audi A3 Base, 2.0 E, Automatic DCT
Air Conditioning
2008 Audi A3 Base, 2.0 E, Automatic DCTSECTION Air Conditioning
- 87 Air Conditioning
- General Information
- Refrigerant Safety Precautions
- Refrigerant Circuit Repair Safety Precautions
- Start/Stop System Safety Precautions
- Painting Vehicles With A/C
- Capacity Information
- CLIMATRONIC Control Module
- Contact Corrosion
- A/C System, Operating After Filling Refrigerant Circuit
- A/C Evaporator Cleaning
- Adapter Cable For Activating Control Motors
- General Repair Information
- Refrigerant Circuit, Draining
- Refrigerant Circuit O-Rings
- Refrigerant Circuit, Servicing
- RECIRCULATION Door Motor
- Description And Operation
- A/C Compressor Belt Pulley, DENSO Version 1
- A/C Compressor Belt Pulley, DENSO Version 2
- A/C Compressor Belt Pulley, DENSO Version 3
- A/C Compressor Belt Pulley, ZEXEL / VALEO
- A/C Compressor Belt Pulley, SANDEN
- A/C System Control And Regulation Components Outside Passenger Compartment
- A/C System Control And Regulation Components Inside Passenger Compartment
- Air RECIRCULATION Door Motor And Fresh/Air RECIRCULATION Door Operation
- Air Distribution Housing Defroster Outlet Door
- Air Guide In Evaporator Housing
- Air Guide In Air Distribution Housing
- Air Intake And Outlet Openings
- Air Quality Sensor Function
- Air Routing And Distribution In Passenger Compartment
- CLIMATRONIC Control Module
- Dust And Pollen Filter With Activated Charcoal Insert
- Heating And A/C Unit Components - Manually Regulated
- Heating A/C Unit Components - Automatically Regulated
- Refrigerant Circuit Component Overview
- Specifications
- Diagnosis And Testing
- A/C Compressor Regulator Valve, Checking Switch-On Signal
- A/C Control Module And Air RECIRCULATION Door Motor, Checking Function
- Air RECIRCULATION Door Motor, Checking Function
- Air Quality Sensor, Checking
- Auxiliary Air Heater, Checking
- Auxiliary Heater Control, Checking
- Checking And Cleaning Plenum Chamber Water Drain
- Cooling Performance - With Automatically Regulated A/C System, Checking
- Cooling Performance - With Manually Regulated A/C System, Checking
- Heating Performance Of A/C System, Checking
- High Pressure Sensor, Checking Pressure Signal
- Parking Heater, Poor Output
- Heated Rear Window, Checking
- Seat Heater Activation
- Vent Frame, Checking
- Removal And Installation
- A/C Compressor And Pulley
- Air Quality Sensor
- Air Intake Cover
- Air Intake Grille
- Air Intake Housing
- Auxiliary Heater Heating Element With Control Module
- CLIMATRONIC Control Module
- Condenser
- Condensate Drain Hose
- Connecting Points In Refrigerant Line, Disconnecting And Connecting
- Door Motors
- Dryer Cartridge
- Dust And Pollen Filter
- Evaporator
- Expansion Valve
- Fluid Reservoir
- Fresh Air Blower And Control Module, Automatically Regulated A/C System
- Heating And A/C Unit
- Heat EXCHANGER
- High Pressure Sensor
- Instrument Panel Vent
- Interior Temperature Sensor Fan
- Refrigerant Lines, Disconnecting From A/C Compressor
- Refrigerant Lines, Disconnecting From Condenser
- Refrigerant Lines, Disconnecting From Expansion Valve
- Sunlight Photo Sensor
- Temperature Sensors
- Disassembly And Assembly
- Special Tools
- General Information
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.