443 997 397 AX · control unit for knock sensor

Discontinued — no replacement recorded

Audi discontinued 443997397AX in July 2009 and records no replacement for it. Catalogue data: oemdiagrams.com · 09/2024 — a later replacement, or a supplier still holding stock, would not appear here.

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