Refrigerant Circuit Seals
WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2017 Audi SQ5, 2017 Audi Q5, 2016 Audi SQ5, 2016 Audi Q5, and 2015 Audi SQ5. However, it is still accessible from the selected car via links, so may be relevant.
- Always use O-rings only once, replace.
- Coat the O-rings with refrigerant oil before installing.
- Make sure O-rings are seated properly on pipe or in groove.
- Check the connections on the components and refrigerant lines for damage (even a small scratch can lead to leakage).
- Perform the work under clean conditions (even the smallest deposit such as a hair may cause a leak).
NOTE:
Install only O-rings that are resistant to refrigerant R134a and corresponding refrigerant oil. The O-ring seals are color-coded to avoid mistakes (currently "red", "light purple" or "dark purple").
The dimensions -a- and -b- are different depending on the component location of the O-ring seal.
In addition to the color-coded O-ring seals, use is also made at the factory of black O-ring seals for certain connections.