Battery Interrupt Igniter, 48 Volt -N751-, REMOVING AND INSTALLING
WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
The Battery Interrupt Igniter, 48 Volt -N751- is integrated in the Battery, 48 V -A6- and cannot be replaced separately if faulty.
-- Replace the Battery, 48 V -A6-. Refer to Battery, 48 V -A6-, REMOVING AND INSTALLING, 0K4 AND VH2 .