Draining
See Draining
Topping up the lubricating oil
| WARNING | Do not mix oil types. Always use the correct type of compressor oil. |
Note. Too much lubricating oil will impair cooling. Too little lubricating 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.
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 new components or the system (which should be filled through the service valve) must have the oil volumes given below, except for the compressor: OIL VOLUME TABLE Receiver 30 cm 3 Evaporator 50 cm 3 Condenser 30 cm 3 Tube 10 cm 3 Hose 10 cm 3
Compressor
Preparatory operations for oil return
- Measure the volume of the oil drained from the compressor
- Replace the volume of drained oil according to the table below
| Drained oil volume | Reusing the compressor | New compressor |
|---|---|---|
| More than 60% of the total oil volume | Replace the volume of drained oil with the corresponding quantity | 180 cm 3 - (drained oil volume + 20 cm 3 ) |
| Less than 60% of the total oil volume | Fill with 60% of the total oil volume in the system | Fill with 180 cm 3 * 40% - 20 cm 3 |
| CAUTION | When installing a completely new system: Check that there is oil in the compressor. The other components should contain no oil. |
Replacing the receiver
Replace the receiver in the following instances
- When replacing the compressor (compressor seizure for example)
- Refrigerant leakage, where nearly 100% has leaked out of the system. (The system has no pressure)
- When replacing any air conditioning (A/C) component outside the warranty period.
| 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 |
|---|---|---|---|
| S40 (-04)/V40 | All petrol except B4184SM/SJ (GDI) | All | 1161 627-3 |
| S40 (-04)/V40 | B4184SM/SJ (GDI) | All | 1161 628-1 |
| S40 (-04)/V40 | All Diesel | All | 1161 629-9 |
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
| Receiver drier | 30 cm 3 |
|---|---|
| Evaporator | 50 cm 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. |