The Audi A8 4.2 TDI 385hp (D4 – 2010 – 2016) produces 385 hp and 850 Nm in standard form. With Stage 1 software that rises to about 450 hp and 950 Nm: a gain of 65 hp (+17%) and 100 Nm (+12%).

This is a diesel engine with a displacement of 4,134 cc and engine code CTEC. The engine is controlled by the Bosch EDC17CP44, the gearbox by the ZF AL551. The software file can be written with tools such as Alientech KESS3, Autotuner, ByteShooter Toolbox, CMD CMDFlash, MagicMotorsport Flex and 1 more.

Frequently asked questions

How much power and torque does a Audi A8 4.2 TDI 385hp gain with Stage 1?

About 65 hp and 100 Nm: from 385 hp / 850 Nm to roughly 450 hp / 950 Nm. The exact gain depends on engine condition and fuel quality.

Which ECU does a Audi A8 4.2 TDI 385hp use?

Bosch EDC17CP44 (engine); ZF AL551 (gearbox).

Which tools can read a Audi A8 4.2 TDI 385hp?

Alientech KESS3, Autotuner, ByteShooter Toolbox, CMD CMDFlash, MagicMotorsport Flex and Dimsport New Genius.

Figures are indicative and vehicle specific. Check the regulations that apply in your country before modifying engine software.