AIR CONDITIONING – Audi A3 2009 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 3) for Audi A3 2009

List of elements for Automatic A/C Wiring Diagram (1 of 3) for Audi A3 2009:

• (behind left kick panel) g44
• (behind right kick panel) g638
• (in engine compartment, on a/c high pressure line) high pressure sensor
• (in right plenum chamber) air quality sensor
• 16a
• 22a
• 37a
• A/c compressor regulator valve (rear of a/c compressor)
• Climatronic control module (w/ a/c control head)
• Evaporator vent temperature sensor (right front of center console)
• Fresh air blower (under right side of dash)
• Fresh air blower control module (below right side of dash)
• Fuse 10a
• Fuse 20a
• Fuse 40a
• Fuse 5a
• Fuse panel c
• G638 (behind right kick panel)
• Hot at all times
• Left footwell vent temperature sensor (left side of hvac unit)
• Left temperature flap motor & potentiometer/ actuator (left side of hvac unit)
• Nca
• Red
• Right footwell vent temperature sensor (top right side of hvac unit)
• Seats system
• T16d
• T20j
• W/ heated seats

Automatic A/C Wiring Diagram (2 of 3) for Audi A3 2009

List of elements for Automatic A/C Wiring Diagram (2 of 3) for Audi A3 2009:

• (in left dash air vent) left vent temperature sensor
• (in right dash air vent) right vent temperature sensor
• (top left center of dash) sunlight photo sensor
• Central flap motor position sensor (on central flap actuator motor)
• Climatronic control module (w/ a/c control head)
• Computer data lines system
• Defroster flap motor position sensor (on defroster flap motor)
• Fuse 50a
• Fuse panel b (integrated in engine compt e-box)
• Hot at all times
• Recirculation flap motor, air flow flap motor & back pressure flap motor position sensor (recirculation flap motor: behind glove box) (air flow flap motor: left side of fresh air blower unit)
• Red
• Right temperature flap motor & potentiometer/actuator (lower right side of hvac unit)
• Seats system
• T12f
• T16e
• T40
• W/ high e-box
• W/ low e-box

Automatic A/C Wiring Diagram (3 of 3) for Audi A3 2009

List of elements for Automatic A/C Wiring Diagram (3 of 3) for Audi A3 2009:

• (left side of engine, below oil filter) after-run coolant pump
• 2.0l (bpy)
• 2.0l (cbfa)
• 2.0l (ccta & cbfa)
• 2.0l (ccta)
• 2.0l bpy 3.2l
• 3.2l
• After-run coolant pump (left side of engine, below oil filter)
• Coolant circulation pump relay
• Coolant circulation pump relay (2.0l (cbfa)) (on fuse panel "b")
• Coolant circulation pump relay (2.0l (ccta)) (on fuse panel "b")
• Coolant fan 2
• Coolant fan control (fc) control module (front of engine compartment)
• Engine control module (except 3.2l & 2.0l (bpy)) motronic engine control module (3.2l & 2.0l (bpy)) (motronic engine control module: in center of plenum chamber)
• Engine controls system
• Engine coolant temperature sensor (2.0l: right rear of engine) (3.2l: left side of cylinder head)
• Engine coolant temperature sensor (on radiator)
• Except 2.0l (cbfa)
• Fuse 10a
• Fuse 50a
• Fuse 5a
• Fuse panel a
• Fuse panel b (integrated in engine compt e-box)
• G607 (2.0l bpy) (in left plenum chamber)
• G607 (in left plenum chamber)
• G655 (3.2l) (on left headlight)
• G655 (on left headlight)
• Hot at all times
• Nca
• T121
• T26
• T2e
• T40
• T4d
• T60
• T94
• W/ high e-box
• W/ low e-box