Topping up the lubricating oil
| WARNING | Do not mix oil types. Always use the correct type of compressor oil. |
Note. Too much lubrication oil will impair cooling. Too little lubrication oil will damage the compressor.
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.
| Model | Engine | Model Year | Oil, AC compressor R134a |
|---|---|---|---|
| S60/S80(-06)/V70(00-)/V70XC(01-)/XC70/XC90 | All | All | 1161 627-3 |
Slow leakage (longer than 24 hours)
With a slow leak, there is normally minimal risk of oil loss.
When installing new components the following procedures apply
Rapid leakage (e. g. hose rupture)
Rapid leakage often means that lubricating oil escapes with the refrigerant.
When replacing components, the following oil volumes shall be found in the new components or shall be filled in the system through the service valve, except for the compressor (see "Compressor" below)
| Receiver drier | 30 cm 3 |
|---|---|
| Evaporator | 50cm 3 |
| Condenser | 30 cm 3 |
| Tube | 10 cm 3 |
| Hose | 10 cm 3 |
Compressor
Oil return when reusing compressor
- measure the volume of the oil drained from the compressor
- replace the volume of drained oil according to the table below
| Drained oil | Filling with oil |
|---|---|
| > or = 70 cm 3 oil | Replace the volume of drained oil with the corresponding quantity. |
| < 70 cm 3 oil | Fill with 70 cm 3 of oil. |
Oil return when replacing compressor
- Drain the old compressor of oil, and measure the amount.
- Drain the new compressor of oil (the amount may be below specified value since it is not possible to drain all oil from the compressor).
- Use the table below to fill the new compressor with the right amount of oil.
| Drained oil | Filling with oil |
|---|---|
| > or = 70 cm 3 oil | Replace the drained oil volume with the same amount that was drained from the old compressor. |
| < 70 cm 3 oil | Fill with 70 cm 3 of oil. |
| CAUTION | When installing completely new system: Check that there is oil in the compressor. The other components should contain no oil. |
Draining Refrigerant
Information
Scheme 357
Note. The ambient temperature must be above 20°C when draining the system
When draining refrigerant, the recycling unit can be attached to the service valve for both the high pressure side (HP) and the low pressure side (LP) at the same time. This is the quickest method.
- The engine must be switched off
- Check the amount of oil (if any) that has run out when draining the refrigerant.
Note. The recycling unit must be equipped with an oil separator. The oil separator must be of a type that allows the amount of oil in the refrigerant to be measured.
Note. Always disconnect the battery lead when working on the climate control system. Disconnect the battery lead. See Battery, replacing .
Other information
- For vacuum pumping, see «Vacuum pumping»(ref-461634-S19506972102012040200000)
- For visual and physical checks, see «Air Conditioning (A/C) compressor, visual and physical check»(ref-461634-S39038436672012040200000)
- To fill with refrigerant, see «Filling with refrigerant»(ref-461632-S36656185202012040200000)
- To fill with fluorescent tracing agent, see «Filling with fluorescent tracing agent with the refrigerant»(ref-461632-S32812825382012040200000)
- To leak trace using an electronic leak tracer, see «Leak Tracing, Electronic Leak Tracer»(ref-440226-S01954603742011121400000)
- To leak trace using fluorescent tracing agent and an UV flashlight, see «Leak Tracing, Fluorescent Tracing Agent/UV lamp»(ref-440226-S08525109212011121400000)