[ECM] Knock retard #4

Signal definition and scope

Brand context

Audi

Display unit

°

Signal kind

numeric

Source signal reference

12510042, 14280031, 14675107, 14680111, 16445042

Short label

[ECM] Knock retard #4

Library state

Decoded definition available; vehicle response not established

Source revisions

legacy-owner-2026-10-02-v59

Enhanced or private PID means a manufacturer-specific signal reference. It does not mean a paid PID. Request commands and decoding formulas are not needed to read this explanation and are not published here.

Which vehicle profiles list this signal?

5 connection profiles list this signal concept. Check the definition variants below for the exact profile relationships; matching display names do not make request or decoder variants interchangeable.

• MLB: 2.0 TSI/TFSI: CAEB, CDNC var.1Audi
• MLB: 2.0 TSI/TFSI: CAEB, CDNC var.2Audi
• MLB-EVO: TSI/TFSI EA839 3.0LAudi
• MLB-EVO: TSI/TFSI EA888 Gen.3(3B) (2.0L >200 hp) (Audi: A4 8W, A5 8W, Q5 80A, Q7 4M, A7 4K8, A6 4K, Q8 4MN, VW Touareg CR)Audi
• MQB: TSI/TFSI EA888 Gen.3 (1.8L; 2.0L >200 hp)Audi

How should I interpret a value?

Use the exact vehicle profile and confirm the returned module and unit. An unavailable response is not zero. This reference does not supply a universal normal range or infer a failed component.

Definition variants and exact profile relationships

Entries sharing a label and unit can use different requests or decoders. The following variants are retained separately; they are not interchangeable.