Heater And A/C Unit, Removing And Installing: Installing

Install in the reverse order of removal while noting the following:

• Check all seals and grommets on the heater and A/C unit for damage before installing and replace any damaged parts.

-- Coat the grommet -B and C- with grease and install it in the plenum chamber rear panel -A-.

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-- Insert the support ring -D- in the grommet.

-- Check the position of the coolant and refrigerant lines in both grommets in the plenum chamber rear panel, and if necessary, align the heater and A/C unit so that the lines are not tensioned in the grommets.

-- Vehicles with auxiliary heater: connect the wires. Refer to Auxiliary Heater Heating Element -Z35-, REMOVING AND INSTALLING .

-- Attach the refrigerant line to the front expansion valve. Refer to EXPANSION VALVE, REMOVING AND INSTALLING .

-- Connect the coolant hoses -A and B- to the heater core coolant pipes (pay attention to the marking) and secure them with a clamp.

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-- Fill and bleed the coolant for the engine cooling circuit. Refer to [For engine(s) DKMB, DLZA] COOLANT, DRAINING AND FILLING .

-- Switch the ignition on.

-- Then perform the basic setting for the actuators.

Procedure 

-- Connect the Vehicle Diagnostic Tester.

-- Select the Diagnostic  mode and start the diagnosis.

-- Select the Test plan  tab.

-- Select the Select individual test  button and select the following tree structure consecutively:

• Diagnostic-capable systems
• 0009 - Electronic central electric - J519
• 0009 - Central electric electronic, functions
• 0009 - Basic setting for climate control functions

-- Operate the A/C system after charging the refrigerant circuit. Refer to A/C SYSTEM, STARTING AFTER CHARGING REFRIGERANT CIRCUIT .