443 907 397 L · control unit for knock sensor

Replaced by 443997397CX — which has itself been discontinued

Audi discontinued 443907397L in January 2003 and records 443997397CX as its replacement. 443997397CX is itself recorded as discontinued (April 2007), with no further replacement. 443997397CX is an exchange (reconditioned) unit — the part you replace must be returned as a core. Catalogue data: oemdiagrams.com · 09/2024.

Where no discontinuation is shown, the 09/2024 catalogue records none. That is not confirmation that the part is currently available.