| Repairing components in refrigerant circuit |
WARNING | Danger of freezing injuries. |
| If refrigerant circuit has not been evacuated, refrigerant and refrigerant oil will escape. |
| Extract refrigerant before opening refrigerant circuit. If the refrigerant circuit is not opened within 10 minutes after it has been evacuated, pressure may develop in refrigerant circuit due to re-evaporation. Extract refrigerant again. |
|
Note | t
| The refrigerant must be extracted beforehand, e.g. with air conditioning service station -VAS 6007A- (or later model). |
| t
| If refrigerant lines have been renewed, spray them with cavity sealant after installing and checking connections for leaks. Also spray between the securing clips and the refrigerant lines. |
| t
| Releasing refrigerant into the environment is a punishable offence. |
| t
| Observe the safety measures when working on an evacuated refrigerant circuit → Chapter. |
| t
| To prevent the intrusion of moisture, all components of the refrigerant circuit which have been opened must be sealed with suitable plugs. |
| t
| The colour coding of O-rings for R134a refrigerant circuits has been discontinued. Coloured and black O-rings are used. |
| t
| Under certain conditions, it is no longer necessary to renew the receiver with dryer cartridge each time the refrigerant circuit is opened. See Workshop Manual Air conditioning system with refrigerant R134a → Rep. Gr.00 Technical data; Renewing components. |
| t
| Notes on tools for repair work to vehicles with air conditioning can be found in ELSA in Workshop Manual Air conditioning system with refrigerant R134a, under repair group → Rep. Gr.00 Technical data. |
|
|
|
