2. Replace defective elements.
Attention: to avoid contamination of the system, immediately install plugs on the open ends of the pipes.
3. Tighten the connections.
Attention: tighten the connections in strict accordance with the torques shown in the figure "Tightening torques for threaded connections of the air conditioning system".
4. Vacuum and charge the system with refrigerant (see subsections "Vacuum system" And "Charging system").
Note: See section on refrigerant quantity "Charging system".
5. Check the tightness of the system (see subsection "System leak test").
6. Check the operation of the air conditioner.