BTR 4.2 TDI 326hp
Engine code BTR is a diesel engine of 4,134 cc, rated at 326 hp. It was fitted to 5 different Audi models, which is why the code matters more than the badge on the boot.
Cars fitted with BTR
| Make | Model | Generation | Power |
|---|---|---|---|
| Audi | A4 | B7 (2004–2008) | 326 hp |
| Audi | A6 | C6 (2004–2011) | 326 hp |
| Audi | A8 | D2 (2000–2002) | 326 hp |
| Audi | A8 | D3 (2002–2009) | 326 hp |
| Audi | Q7 | 4L (2005–2015) | 326 hp |
Which ECU it runs
BTR is controlled by a Bosch EDC16CP34 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 4.2 V8 FSI 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 BTR?
BTR was fitted to the Audi A4 B7 (2004–2008), the Audi A6 C6 (2004–2011), the Audi A8 D2 (2000–2002), the Audi A8 D3 (2002–2009), the Audi Q7 4L (2005–2015).
What is engine code BTR?
BTR is a 4.2 TDI 326hp (diesel).
Which ECU does BTR use?
BTR runs a Bosch EDC16CP34 engine control unit.