Attention! The air conditioning system is under high pressure. Do not loosen any connections or remove any parts until the system has been depressurized in a workshop or workshop. Always wear protective goggles when disconnecting the air conditioning hose.
1. Let the air conditioning system be discharged for you (see above precautions).
2. Disconnect the negative cable from the battery.
3. Disconnect the refrigerant lines from the battery. To prevent twisting of the pipeline, use the second key (see illustrations).
14.3a. The filter-drier of the air conditioning system is located in the right front corner of the engine compartment in front of the expansion tank: 1 - inlet pipeline, 2 - exhaust pipeline | 
14.3b. To prevent twisting of the pipes, use a special wrench when unscrewing the refrigerant lines |
4. Plug open fittings to prevent dirt and moisture from entering.
5. Loosen the mounting bracket bolt (see illustration) and remove the filter.
14.5. Loosen the mounting bolt (indicated by an arrow) and separate the bracket to remove the filter
6. If a new filter is to be installed, remove the Schrader valve (see illustration) and pour the oil into a measuring cup, measuring its amount. Add as much fresh oil to the new filter as was removed from the old one, plus 1 oz.
14.6. To remove the Schrader valve, unscrew the protective plastic cap (indicated by an arrow)
7. Remove the old refrigerant piping O-rings and replace with new ones. This should be done regardless of whether a new filter is installed on the car or an old one is used.
14.7. Don't forget to replace the O-rings on the refrigerant lines
8. Reassemble in reverse order, but remember to lubricate the O-rings on the fittings with refrigerant oil before connecting the fittings.
9. Have the system evacuated, recharged and checked for leaks at the same workshop that performed the discharge.