Open Fuel Injectors, Checking: Notes

WARNING: This page is about a different car, the 2016 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Hand Vacuum Pump :VAS6213
Make an -adapter- for the return line.

Open injector means: the nozzle needle does not close all of the way and fuel leaks into the cylinder.