CITROEN C2 2003 Handbook page 196

SPECIAL FEATURES : AIR CONDITIONING SYSTEM (R 134.a)
ESSENTIAL: The compressor lubricant is extremely hygroscopic; always use FRESH oil.
There are three specific cases :
- 1/ Repairs to a system without leaks.
- 2/ Slow leak.
- 3/ Fast leak.
1/ Repairing a system without leaks.
a) - Using draining/recovery equipment not fitted with an oil decanter.
- Drain the system as slowly as possible via the LOW PRESSURE valve, so as not to lose any oil.
- No more oil should be added when filling the system with R 134.a fluid.
b) - Using draining/filling equipment fitted with an oil decanter.
- Drain the R 134.a fluid from the system in accordance with the instructions in the equipment handbook.
- Measure the amount of oil recovered.
- Add the same amount of NEW oil when filling the system with R 134.a fluid.
c) - Replacing a compressor.
- Remove the old compressor, drain it and measure the oil quantity.
- Drain the new compressor (supplied full), so that the same amount of NEW oil is left in the compressor as was in the old compressor.
Compressor lubricant
Checking the compressor oil level.
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