Guidelines For Clean Working Conditions

WARNING: This page is about a different car, the 2021 Audi e-tron Quattro and 2019 Audi e-tron Quattro. However, it is still accessible from the selected car via links, so may be relevant.

It is necessary to maintain a high level of cleanliness when working on the brake system. It is not permitted to use any products which contain mineral oil, such as oils, greases etc.
Thoroughly clean all connection points and their surrounding areas before loosening. However, do not use aggressive cleaning agents such as brake cleaner, gasoline, thinners or similar compounds.
Place the removed parts on a clean surface and cover them.
Carefully cover or seal off opened components if repairs are not performed immediately (use plugs from the Plug Set:1H0 698 311 A ).
Only use lint-free cloths.
Remove the replacement parts from their packaging just prior to installing them.
Only use parts in their original packaging.
Do not move the vehicle and do not work with compressed air when the system is open to prevent contamination due to mineral oil or particles.
Make sure that brake fluid cannot get into the connectors.