REFRIGERANT LINES WITH INNER HEAT EXCHANGER, REMOVING AND INSTALLING, Vehicles with 2.0L Hybrid: Installing
Installation is done is reverse order, observe the following:
Electrical connections and routing. Refer to the appropriate SYSTEM WIRING DIAGRAM.
-- Thoroughly clean all the connections in the expansion valve -B- and in the refrigerant line -D- with the inner heat exchanger.
-- Check the connections in the expansion valve -B- and on the refrigerant line -D- for damage.
-- Replace the quick-coupling connections on the refrigerant line with inner heat exchanger. Refer to REFRIGERANT LINES, DISCONNECTING FROM QUICK-RELEASE COUPLINGS AND CONNECTING .
-- Replace the O-rings -A- and -C-. Allocate correct version.
Follow the instructions for installing the O-rings. Refer to REFRIGERANT CIRCUIT SEALS .
-- Coat the O-ring seals lightly with refrigerant oil before installing. Refer to REFRIGERANT CIRCUIT SEALS .
-- Make sure the O-rings fit properly in the grooves on the refrigerant line refrigerant line connections -D-.
-- Tighten the bolts -E- for the refrigerant line -D- with inner heat exchanger.
- Tightening specification -E- : 10 Nm.
-- Tighten the nut -C- for the refrigerant line -B-.
-- Install the plenum chamber front wall. Refer to OVERVIEW - BULKHEAD .
Install refrigerant line such that it is not strained.
Check installation position of refrigerant line to expansion valve (it should not come in contact with other components).
-- Install the refrigerant line on the quick-coupling connections. Refer to REFRIGERANT LINES, DISCONNECTING FROM QUICK-RELEASE COUPLINGS AND CONNECTING .
-- Install the remaining removed components.
-- Evacuate the refrigerant circuit and fill it. Refer to USING SERVICE STATION . For additional information, refer to OVERVIEW - REFRIGERANT CIRCUIT, NOT OPENING THE REFRIGERANT CIRCUIT, VEHICLES WITH HIGH VOLTAGE SYSTEM and OVERVIEW - REFRIGERANT CIRCUIT, OPENING THE REFRIGERANT CIRCUIT, VEHICLES WITH HIGH VOLTAGE SYSTEM (Refrigerant R134a, Servicing; Refrigerant Circuit, Using Service Station).
Visually inspect the high voltage components -D- and high voltage cables -E- after completing the work procedures and before installing the plenum chamber cover -B-. Refer to HIGH VOLTAGE SYSTEM GENERAL WARNINGS .
-- Electrical connections and routing. Refer to the appropriate SYSTEM WIRING DIAGRAM.
-- Energize the power supply to the high voltage system. Refer to HIGH VOLTAGE SYSTEM, RE-ENERGIZING .
Restart the high voltage system
Risk of electrocution
Death or serious bodily injury by electric shock
- The high voltage system may only be restarted by qualified personal (Audi high voltage technicians).
- Make sure the vehicle is energized using the "Guided Fault Finding " on the Vehicle Diagnostic Tester.
- The qualified personal (Audi high voltage technician) restarts the vehicle.
- The Audi high voltage technician should put a sign on the vehicle to identify it as a high voltage vehicle.
Restart the high voltage system:
Connect the vehicle diagnostic tester.
Select the Guided Fault Finding mode.
Using the GO TO button, select the following menu commands
Function/Component Selection
Body
Electrical Equipment
OBD-capable systems
8C - Battery Regulation Control Module -J840
8C - Battery Regulation Control Module, functions
51 - High voltage restart
-- Turn on the ignition.
-- Check the DTC memory for the Climatronic Control Module -- display and control head and erase any displayed malfunctions, if necessary using the Vehicle Diagnostic Tester in the "Guided Fault Finding " function.
-- Operate the A/C system after filling the refrigerant circuit. Refer to A/C SYSTEM, STARTING OPERATION AFTER FILLING REFRIGERANT CIRCUIT .
Observe the information regarding operating the A/C system after filling. Refer to A/C SYSTEM, OPERATING AFTER CHARGING , (Refrigerant R134a, Servicing; A/C System, General Information). After charging the A/C system before activating the A/C system.