Expansion Valve, Removing And Installing: Installing: Notes

WARNING: This page is about a different variant/trim than selected.

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NOTE:

The expansion valve is available in different versions (same housing but different control characteristic). Allocation.

Check the refrigerant pipes leading to the evaporator for contamination and damage.

Coat the O-rings with refrigerant oil before installing. Refer to REFRIGERANT CIRCUIT SEALS .

Check the O-rings for proper seating on the evaporator connecting pipes.

-- Replace the O-rings. Refer to the Parts Information for the version.

-- Install the O-rings -1 and 4- onto the connecting pipes -2 and 3- to the evaporator.

-- Make sure the retainer -4- (bracket for securing the expansion valve on the evaporator pipes) is in the proper installation position (must not be pushed too far into the foam piece -5-, otherwise the bolts may not engage).

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-- Attach the expansion valve -4- to the refrigerant lines to the evaporator.

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-- Tighten the bolts -1 and 3-.

NOTE:

If the heat shield insulation -2- is missing or not installed correctly, it can cause reduced output of the A/C system (change of the set control characteristic due to radiant heat).

Reinstall in reverse order of removal. Note The Following:

-- Install the refrigerant lines with inner heat exchanger. Refer to REFRIGERANT LINES WITH INNER HEAT EXCHANGER, REMOVING AND INSTALLING .