887019 Removing and Installing Expansion Valve For Auxiliary Air Conditioner

WM 887019 Removing and installing expansion valve for auxiliary air conditioner

Technical values





Preliminary work

Remove rear side trim panel. => 700319 Removing and installing side trim panel for rear luggage compartment - section on "removing"

Removing expansion valve

CAUTION

Danger of injury from contact with the refrigerant

-> Observe safety regulations when working with refrigerant. => 80 Safety regulations for working on air-conditioned vehicles and dealing with refrigerant R134a





Overview of expansion valve

1. Remove refrigerant by suction. => 870317 Evacuating and filling in refrigerant - section on "draining"
2. Undo the two fastening screws -1- for the expansion valve refrigerant lines.





Undo fastening screws for refrigerant lines

3. Pull out refrigerant lines from expansion valve and close with plugs.
4. Undo the two fastening screws for the expansion valve -2- and remove expansion valve.





Loosening and removing expansion valve

Installing expansion valve

Information

- Before the expansion valve is re-installed, the O-rings of the refrigerant lines must be checked for damage and replaced if necessary.

- Wet the O-rings of the refrigerant lines with refrigerant oil.

1. Carefully push expansion valve onto refrigerant lines from evaporator - do not tilt.





Installing and screwing down expansion valve

2. Insert the two fastening screws -2- and tighten. => Tightening torque: 6.5 ftlb.
3. Carefully push refrigerant lines onto expansion valve (do not tilt) and tighten with the two fastening screws -1-. => Tightening torque: 7.5 ftlb.





Tightening fastening screws of refrigerant lines

Subsequent work

1. Install rear side trim panel. => 700319 Removing and installing side trim panel for rear luggage compartment - section on "installing"
2. Fill in refrigerant. => 870317 Evacuating and filling in refrigerant - section on "filling"