Tightening Specifications

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Refer to OVERVIEW - REFRIGERANT LINES, EXPANSION VALVE, INNER HEAT EXCHANGER

-- Replace the O-ring seals depending on the version.

-- Clean the connection on the expansion valve -B- and on the inner heater core -D- and inspect them for damage.

-- Thoroughly clean the refrigerant lines around the connection area and check for damage.

-- Insert the O-ring seals -A and C- into the groove on the inner heat exchanger connection.

NOTE:

Coat the O-ring seals with refrigerant oil prior to installation, refer to REFRIGERANT CIRCUIT SEALS .

Check O-ring seals for proper seating in groove -arrow- of the respective refrigerant line.

Following attachment, check routing of refrigerant lines. They must be inserted in holders provided and not make contact with other components.

-- Insert the inner heat exchanger on the expansion valve.

-- Tighten the bolts -E-.

-- Attach the refrigerant lines to the inner heat exchanger, refer to REFRIGERANT LINES WITH INNER HEAT EXCHANGER, REMOVING AND INSTALLING .

-- Evacuating and recharging refrigerant circuit, refer to REFRIGERANT CIRCUIT, DISCHARGING WITH SERVICE STATION or REFRIGERANT CIRCUIT, DISCHARGING WITH SERVICE STATION and REFRIGERANT CIRCUIT, CHARGING WITH SERVICE STATION .

-- Operate the A/C system after filling the refrigerant circuit, refer to A/C SYSTEM, STARTING OPERATION AFTER FILLING REFRIGERANT CIRCUIT and A/C SYSTEM, OPERATING AFTER CHARGING .

-- Check the Diagnostic Trouble Code (DTC) memory and erase any displayed entries using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.