Audi A4: Pressures, Checking
Audi A4 (B9) 2016-2026 Service Manual / Heating, Ventilation & Air Conditioning / Pressures, Checking
- General Information
- Refrigerant Circuit, Checking Pressure with Service Station
- Checking Pressures for Vehicles with Restrictor and Reservoir (with Internally Regulated Compressor)
- Checking Pressures on Vehicles with Expansion Valve and Receiver/Dryer (with Internally Regulated Compressor)
- Vehicles with Restrictor, Reservoir and A/C Compressor Regulator Valve -N280- (Externally Regulated A/C Compressor), Checking Pressures
- Vehicles with Restrictor, Receiver/Dryer and A/C Compressor Regulator Valve -N280-, Checking Pressures, Externally Regulated Compressor
- Checking Pressures on Vehicles with Electrically Driven A/C Compressor (Vehicles with Hybrid Drive)
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General Information
Vehicles with a High Voltage System (Hybrid Vehicles)
Extremely Dangerous Due to High-Voltage
The high-voltage system is under high-voltage. Death or serious
bodily injury by electric shock.
- I
Refrigerant Circuit, Checking Pressure with Service Station
General Information
Note
All test conditions marked * are vehicle-specific and are
described in the Repair Manual for the relevant vehicle.
Check cooling performance.
Connections with val
Checking Pressures for Vehicles with Restrictor and Reservoir (with
Internally Regulated Compressor)
General Information
Note
Connect the A/C service station. Refer to
→ Chapter "A/C Service Station, Connecting".
Observe the test requirements. Refer to
→ Chapter "Pressures,
SEE MORE:
Impact Member, Removing and Installing
Follow the safety precautions. Refer to
→ Body Interior; Rep. Gr.00; Safety Precautions; Safety
Precautions when Working on Pyrotechnic Components.
- Remove the bumper cover. Refer to
→ Chapter "Bumper Cover, Removing and Installing".
- Remove the washer nozzle
Drive Axle, Disassembling and Assembling
Drive Axle, Disassembling and Assembling, Triple Roller Joint AAR 2600 i
and AAR 3300 i
Special tools and workshop equipment required
Press Plate -VW401-
Press Plate -VW402-
Press Piece - Rod -VW408A-
Press Piece - Rod -VW411-
Press Piece - 31.5mm -VW416B-
Press Piece - Multiple Use -VW447H-
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