Components Leaking or Damaged (Except A/C Compressor, Accumulator or Receiver)

Components Leaking Or Damaged (Except A/C Compressor, Accumulator Or Receiver)

The refrigerant circuit was completely empty
- Remove malfunctioning component.
- Remove A/C compressor.
- Remove oil drain plug from A/C compressor (replace O-ring).

NOTE:
- With "Denso" ("Nippondenso") A/C compressor, a seal is installed on the oil drain plug instead of an O-ring seal, always replace Parts Catalog.
- To speed up refrigerant oil drainage, turn A/C compressor by hand via ribbed belt or magnetic clutch plate.
- Pouring old refrigerant oil out of compressor, instructions on handling refrigerant oil, refer to Customer service distributor/ServiceNet; handbooks; HSO; Volume 2; emission protection; refrigerant from A/C system I refrigerant oil).
- Then fill compressor with quantity of fresh refrigerant oil corresponding to quantity of refrigerant oil in original part compressor
- Use different refrigerant oils and quantities for the various compressors.
- To ensure compressor lubrication on start-up, at least 80 cu.cm of refrigerant oil must be poured into the compressor, the remainder can be added for example to the new reservoir or receiver.
- If dirt has penetrated into the compressor with the refrigerant circuit open (e.g. after an accident), compressor is to be replaced.
- Refrigerant circuit, flushing with compressed air or nitrogen.

- Replace receiver or accumulator and restrictor.
- Assemble, evacuate and recharge refrigerant circuit.

There is no refrigerant in refrigerant circuit
- Discharge refrigerant circuit
- Remove malfunctioning component, flush with compressed air, collect escaping refrigerant oil.
- The new component is to be filled with the amount of refrigerant oil flushed out (plus 20 cu.cm for evaporator, plus 10 cu.cm for condenser, refrigerant pipes and refrigerant hoses) as fresh refrigerant oil fill.
- Replace restrictor.
- Assemble, evacuate and charge refrigerant circuit.