Brake Fluid Reservoir Cap, Removing And Installing: Notes
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2015 Audi S7, 2015 Audi RS 7, 2015 Audi A7 Quattro, 2014 Audi S7, and 2014 Audi RS 7. However, it is still accessible from the selected car via links, so may be relevant.
Not installed in all vehicles.
The brake fluid reservoir cover has an opening on the left to check the brake fluid level. To prevent damage later, brake fluid must not enter between the brake fluid reservoir cover and the brake fluid reservoir.