Check that it is de-energized on the jump-start connection point using the analog/digital multimeter:

WARNING: This page is about a different car, the 2024 Audi A4 allroad. However, it is still accessible from the selected car via links, so may be relevant.

-- Open the cover -1- by releasing the catch.

-- Measure using the Analog/Digital Multimeter:V.A.G. 1526E between the positive terminal -2- and the negative terminal -3-.

Display on analog/digital multimeter = 0 Volt.