Audi A4: Refrigerant Circuit Components, Replacing
Audi A4 (B9) 2016-2026 Service Manual / Heating, Ventilation & Air Conditioning / Refrigerant Circuit Components, Replacing
- General Information
- Leaking or Damaged Components except A/C Compressor, Reservoir or Receiver/Dryer
- Compressor, Replacing without the Need for Flushing Refrigerant Circuit
- Compressor, Replacing on Account of Leakage or Internal Damage
- Receiver/Dryer or Accumulator and Restrictor, Replacing after Cleaning Refrigerant Circuit
- A/C Compressor Regulator Valve -N280-, Removing and Installing
READ NEXT:
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
Leaking or Damaged Components except A/C Compressor, Reservoir or
Receiver/Dryer
The refrigerant circuit was completely empty (for example
with larger leak or cracked hose)
Note
In the event of only a minor leak with slow escape of
refrigerant (e.g. at a small leakage
Compressor, Replacing without the Need for Flushing Refrigerant Circuit
Note
Cleaning the refrigerant circuit means flushing with
refrigerant R134a. Refer to
→ Chapter "Refrigerant Circuit, Cleaning (Flushing), with
Refrigerant R134a".
If a faulty A/C
SEE MORE:
Front Seats
Component Location Overview - Electric and Electronic Components
1 - Memory Seat/Steering Column Adjustment Control Module
Memory Seat/Steering Column Adjustment Control Module -J136-
Front Passenger Memory Seat Control Module -J521-
Equipped on some models: Integrated seat ventilat
Messages
Text messages
Applies to: vehicles with telephone
Requirement: your mobile device must be connected
to the MMI via Bluetooth Message Access
Profile (Bluetooth MAP).
Applies to: MMI: Select on the home screen:
MESSAGES > () > e-mail (phone
1)/e-mail
(phone 2)*.
The following functions ar
© 2019-2026 Copyright www.audia4b9.com
