Tuning Wiki

Catalogue identity

The TuningService.uk ECU catalogue records EDC16C9 under Bosch EDC16 (catalogue record 59, observed 10 November 2026). The catalogue name is an identification lead; it does not by itself prove vehicle fitment or software compatibility.

Application evidence

AutoTuner lists selected Opel 1.7 and 1.9 CDTI and Saab 1.9 TiD applications.

Tuning and identification

C9 and C39 both appear in tool coverage for some 1.9 diesel families. Identify the installed ECU and firmware instead of choosing a definition from engine size alone.

Read EDC16 torque fuel and tuning basics and EDC16 variant application and tuning differences for the shared context. Examples are not an exhaustive fitment list; check the installed ECU and current tool documentation.

Further application examples

Alientech’s 2017 table includes a Fiat Idea 1.9 JTD entry, an Opel Astra 1.7 CDTI Z17DTL entry and a Saab 9-3 1.9 TiD Z19DT entry under EDC16C9. These are dated examples rather than a complete application list. Alientech, PDF pages 45, 81 and 94.

Identification photograph

The label shows Bosch 0 281 012 548 and GM 55 198 921. The source lists this specific Opel Astra H 1.9 CDTI unit as EDC16C9-3.22; the suffix is not printed visibly on the pictured label.

Bosch ECU listed as EDC16C9 with Opel GM reference 55 198 921
Image source and credit: Keysoftware.

Sources

Curated reference notes. Applicability follows the cited sources; hardware testing by this wiki is not implied.

Directly applicable articles

Technical articles assigned to this context will appear here.

Shared family guidance

From parent families. Broader context does not establish compatibility with this ECU or software version.