Refrigerant Circuit With An Electrically Driven A/C Compressor (With And Without Battery Cooling Module)

WARNING: This page does not describe the selected car, but rather 23 other vehicles, including the 2017 Audi S5, 2017 Audi A5 Quattro, 2016 Audi S5, 2016 Audi A5 Quattro, and 2015 Audi S5. However, it is still accessible from the selected car via links, so may be relevant.

Vehicles with a High-Voltage System (Hybrid Vehicles)

WARNING:

Extremely Dangerous Due to High-Voltage

The high-voltage system is under high-voltage. Death or serious bodily injury by electric shock.

-- Individuals with electronic/medical life- and health sustaining machines in or on their person cannot perform any work on high-voltage systems. Life- and health sustaining machines are for example pain killer pumps, implanted defibrillators, pacemakers, insulin pumps, and hearing aids.

-- Have the high-voltage system de-energized by a qualified person.

WARNING:

There is a Risk of Injury from the Engine Starting Unexpectedly

On electric - hybrid vehicles an active ready mode is difficult to identify. Parts of the body can be clamped or pulled.

-- Turn off the ignition.

-- Place the ignition key outside of the vehicle interior.

WARNING:

Risk of Damaging the High-Voltage Cables

Misuse can damage the insulation of high-voltage cables or high-voltage connectors.

-- Never support objects on the high-voltage cables and the high-voltage connectors.

-- Never support tools on the high-voltage cables and the high-voltage connectors.

-- Never sharply bend or kink the high-voltage cables.

-- When connecting pay attention to the coding of the high-voltage connectors.

For all procedures on vehicles with high-voltage system pay attention to the additional warning message for these vehicles. Refer to WARNINGS WHEN WORKING ON VEHICLES WITH HIGH VOLTAGE SYSTEM .
If procedures are necessary near components of the high-voltage system "perform a visual inspection of the damage of the high-voltage components and lines". Refer to PERFORMING A VISUAL INSPECTION OF DAMAGE TO HIGH VOLTAGE COMPONENTS AND CABLES .
If work on the components of the high-voltage system is necessity, de-energize the high-voltage system. Refer to The Appropriate Service Information. .

NOTE:

The following illustration shows a refrigerant circuit as an example, as it is installed in an Audi Q5 hybrid, for the design of the refrigerant circuit in the respective vehicle refer to the vehicle-specific repair information. Refer to REFRIGERANT CIRCUIT - 1 , REFRIGERANT CIRCUIT - 2 , REFRIGERANT CIRCUIT 1234yf - 1 , REFRIGERANT CIRCUIT 1234yf - 2 , REFRIGERANT CIRCUIT GENERAL INFORMATION R134a , REFRIGERANT CIRCUIT R134a (vehicle-specific repair information).

-Arrows- Point in Direction of Refrigerant Flow.

Courtesy of AUDI OF AMERICA, LLC

Electrically-Driven A/C Compressor
- With A/C Compressor Control Module -J842- and Electrical A/C Compressor -V470-
Condenser
- With receiver/dryer and dryer cartridge
Service Connection, HP Side
Hybrid Battery Refrigerant Shut-Off Valve 1 -N516-
- Only for vehicles with a battery cooling module for the Hybrid Battery Unit -AX1-.
  NOTE:
  The Hybrid Battery Refrigerant Shut-Off Valve 1 -N516- is activated, for example, if it is necessary to cool the battery and no cooling is desired in the passenger compartment (open without activation).
Expansion Valve
- On the evaporator in the A/C system
Evaporator
- Evaporator in the A/C System
Expansion Valve with Hybrid Battery Refrigerant Shut-Off Valve 2 -N517-
- On the evaporator in the battery cooling module
- Only for vehicles with a battery cooling module for the Hybrid Battery Unit -AX1-.
  NOTE:
  The Hybrid Battery Refrigerant Shut-Off Valve 2 -N517- is activated if it is necessary to cool the battery (closed without activation).
Evaporator
- Evaporator in the battery cooling module
- Only for vehicles with a battery cooling module for the Hybrid Battery Unit -AX1-.
Service Connection, LP Side