443 907 397 E · control unit for knock sensor

Replaced by 443997397AX — which has itself been discontinued

Audi discontinued 443907397E in January 2003 and records 443997397AX as its replacement. 443997397AX is itself recorded as discontinued (July 2009), with no further replacement. 443997397AX 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.