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:
Transmission Tightening Specifications
Note
The tightening specifications apply only to lightly greased,
oiled, phosphated or blackened nuts and bolts.
Additional lubricants, such as engine oil or transmission
fluid are permitted, but lubricants containing graphite are not.
Do not use any ungreased parts.
Tightening specif
Overview - Antenna Systems
Overview - Antenna Systems, Sedan, USA
The antenna systems consist of window antennas, a Roof
Antenna - R216- and bumper antennas.
Window Antennas
Antenna -R11- (AM/FM1)/TV Antenna 1 -R55- (TV1) to the
Antenna Amplifier -R24- at the top of the right D-pillar
TV Antenna 2 -R56- (TV2) to the TV A
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