CTBB 3.0 TDI 258hp
Engine code CTBB is a diesel engine of 2,967 cc, rated at 258 hp. It was fitted to 6 different Audi models, which is why the code matters more than the badge on the boot.
Cars fitted with CTBB
| Make | Model | Generation | Power |
|---|---|---|---|
| Audi | A6 | C7 (2011–2018) | 258 hp |
| Audi | A6 allroad | C6 (2006–2011) | 258 hp |
| Audi | A7 | C7 (2010–2018) | 258 hp |
| Audi | A8 | D4 (2009–2017) | 258 hp |
| Audi | Q5 | 8R (2008–2017) | 258 hp |
| Audi | SQ5 | 8R (2012–2017) | 258 hp |
Which ECU it runs
CTBB is controlled by a Bosch EDC17CP44 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 TDI 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 CTBB?
CTBB was fitted to the Audi A6 C7 (2011–2018), the Audi A6 allroad C6 (2006–2011), the Audi A7 C7 (2010–2018), the Audi A8 D4 (2009–2017), the Audi Q5 8R (2008–2017), the Audi SQ5 8R (2012–2017).
What is engine code CTBB?
CTBB is a 3.0 TDI 258hp (diesel).
Which ECU does CTBB use?
CTBB runs a Bosch EDC17CP44 engine control unit.