Brake System Vacuum Pump -V192-: Notes
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2013 Audi S4, 2013 Audi A4, 2012 Audi S4, 2012 Audi A4, and 2011 Audi S4. However, it is still accessible from the selected car via links, so may be relevant.
The construction of the brake system vacuum pump -- depends on the engine.
The brake system vacuum pump -- is switched on by the engine control module depending on the intake line pressure.
Vacuum pump is not intended to be serviced. In case of complains, determine cause with help of function or seal test. If there is a malfunction, replace electrical vacuum pump.