DECA 4.0 TFSI 630hp
Engine code DECA is a petrol engine of 3,993 cc, rated at 630 hp. It was fitted to 10 different Audi models, which is why the code matters more than the badge on the boot.
Cars fitted with DECA
| Make | Model | Generation | Power |
|---|---|---|---|
| Audi | A8 | D5 (2017–2024) | 630 hp |
| Audi | Q8 | 4M (2018–2024) | 630 hp |
| Audi | RS6 | C8 (2019–2024) | 630 hp |
| Audi | RS7 | C8 (2019–2024) | 630 hp |
| Audi | RSQ8 | 4M (2019–2024) | 630 hp |
| Audi | S6 | C8 (2019–2024) | 630 hp |
| Audi | S7 | C8 (2019–2024) | 630 hp |
| Audi | S8 | D5 (2019–2024) | 630 hp |
| Audi | SQ7 | 4M (2016–2024) | 630 hp |
| Audi | SQ8 | 4M (2019–2024) | 630 hp |
Which ECU it runs
DECA is controlled by a Bosch MG1CS001 engine control unit.
Where to find your engine code
The three or four letter code is stamped on the engine block and is usually printed in the service book. It is also stored electronically, so any diagnostic tool that talks to the engine control unit will read it back without you having to find the stamping.
The code matters more than the model year. Cars of the same age and badge were built with different engines, and the timing arrangement, common faults and correct parts all follow the code rather than the year.
VAGPULSE reads the engine code straight off the ECU, along with every stored fault and the live data behind it — so you never have to guess which engine you have. One payment, no subscription.
See VAGPULSE Look up a fault codeCommon questions
What car has engine code DECA?
DECA was fitted to the Audi A8 D5 (2017–2024), the Audi Q8 4M (2018–2024), the Audi RS6 C8 (2019–2024), the Audi RS7 C8 (2019–2024), the Audi RSQ8 4M (2019–2024), the Audi S6 C8 (2019–2024).
What is engine code DECA?
DECA is a 4.0 TFSI 630hp (petrol).
Which ECU does DECA use?
DECA runs a Bosch MG1CS001 engine control unit.