Heater And A/C Unit Refrigerant Cut-Off Valve -N541-, Removing And Installing: Installing
Installation is carried out in the reverse order while observing the following.
Follow the instructions for installing the O-rings -B-. Refer to REFRIGERANT CIRCUIT SEALS .
Following attachment, check routing of refrigerant lines. They must be inserted in holders provided and not make contact with other components.
-- Replace the O-rings -B-. Version. Refer to the Parts Information.
-- Tighten the union nuts -E- all the way by hand.
-- Secure the refrigerant line -F- (to the separating point on the right longitudinal member) in the bracket on the plenum chamber bulkhead.
-- Tighten the union nuts -E- at the same time counterhold on the Heater and A/C Unit Refrigerant Shut-Off Valve -N541- -D- and pay attention that the refrigerant lines are routed without tension.
- Union nut tightening specification -E- : 16.5 Nm
Make sure when tightening the union nuts that the refrigerant lines are not tensioned.
Following attachment, check routing of refrigerant lines. They must be inserted in holders provided and not make contact with other components.
-- Evacuate and charge the refrigerant circuit. Refer to Refrigerant Circuit (Refrigerant R134a Servicing, Refrigerant Circuit, Working with A/C Service Station) or Working with A/C Service Station (1 Of 2) / Working with A/C Service Station (2 Of 2) .
-- Turn on the ignition.
-- Check the DTC memory for the Climatronic Control Module -J255-, 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 .
Read the information for starting the A/C system after filling. Refer to A/C SYSTEM, GENERAL INFORMATION or A/C SYSTEM, OPERATING AFTER CHARGING . After recharging, before activating the A/C system.