XC70 AWD L6-3.2L VIN 98 B6324S (2009)
Refrigerant Oil: Service and Repair
AC-system, oil, refilling
Operation number: 87003-2
Warning! Never mix different types of oils. Always use the correct type of compressor oil.
Caution! When installing a completely new air conditioning system: Check that there is oil in the compressor. The other components should
contain no oil.
Note! Too much lubricating oil will impair refrigeration. Too little lubricating oil will damage the compressor.
Oil leaks
The oil must be topped up when repairing a leak or when replacing a component. The quantity required for the component in question will depend on
whether leakage has taken place slowly or quickly.
Slow leakage (longer than 24 hours)
With a slow leak, there is normally minimal risk of oil loss.
Rapid leakage (e.g. hose rupture)
Rapid leakage often means that lubricating oil escapes with the refrigerant.
General
Frequent inspections or compressor oil changes do not normally have to be carried out if the above leak has not occurred or if the vehicle is used in
professional circumstances.
The compressor oil absorbs moisture for as long as it is in contact with air.
Therefore, always use the necessary amount of oil and discard the remainder or close the oil reservoir tightly after use.
Draining/refilling oil
When draining oil from the compressor, inspect for the following:
-
the oil changes color to red
-
the oil contains metal residues
-
the clarity/translucency of the oil
Draining the oil on the air conditioning compressor without drain plug occurs via the pressure and intake side openings after the pulley and the clutch
plate have been rotated 4-5 turns and with the openings facing downwards.
Filling oil in air conditioning compressors without drain plugs occurs via the pressure side's opening.
Replacing oil
Change the oil in the compressor (reusing the compressor) or replace with the same amount that was in the old one (new compressor) according to the
tables below. Carry out a performance test of the air conditioning system. Refer to: Climate control system, check See: Heating and Air
Conditioning/Testing and Inspection/Component Tests and General Diagnostics/Climate Control System, Check.
When replacing components, the following oil volumes must be found in the new components or must be injected in the system through the service
valve, except for the compressor (see "Compressor"):
Preparatory work for transferring the oil in the compressor:
-
Measure the volume of the oil drained from the compressor
-
Replace the volume of drained oil according to the tables below:
