Audi Q7: Communication

 Rubber Valve

1 - Valve body 2 - Valve Insert 3 - Valve cap 1. The Valve Body The rubber valve for tubeless tires is designed to seal air-tight in the hole in the rim. The elastic material of the rubber body presses itself tightly into the hole in the rim. When valves with threade

 Refrigerant R134a Capacities, Refrigerant Oil and Approved Refrigerant Oils

Approved Refrigerant Oils and Capacities   Note As PAG (polyalkylene glycol) oil is highly hygroscopic (attracts water), opened containers are to be immediately resealed so as to be air-tight. PAG oil from containers which have been open for a lengthy period is no longer usable. Refrige