CTUA 3.0 TFSI 333hp SC
Engine code CTUA is a petrol engine of 2,995 cc, rated at 333 hp. It was fitted to 4 different Audi models, which is why the code matters more than the badge on the boot.
Cars fitted with CTUA
| Make | Model | Generation | Power |
|---|---|---|---|
| Audi | A5 | B8 (2007–2016) | 333 hp |
| Audi | Q7 | 4L (2005–2015) | 333 hp |
| Audi | S4 | B8 (2008–2015) | 333 hp |
| Audi | S5 | B8 (2007–2016) | 333 hp |
Which ECU it runs
CTUA is controlled by a Bosch MED17.1.1 engine control unit.
What goes wrong with this engine
The faults this engine is genuinely known for — and the timing arrangement, which decides a great deal about running costs — are covered in 3.0 TFSI supercharged V6 problems.
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 CTUA?
CTUA was fitted to the Audi A5 B8 (2007–2016), the Audi Q7 4L (2005–2015), the Audi S4 B8 (2008–2015), the Audi S5 B8 (2007–2016).
What is engine code CTUA?
CTUA is a 3.0 TFSI 333hp SC (petrol).
Which ECU does CTUA use?
CTUA runs a Bosch MED17.1.1 engine control unit.