The Seat Leon 1.2 TSI 85hp (5F MK1 – 2012 – 2017) produces 85 hp and 160 Nm in standard form. With Stage 1 software that rises to about 140 hp and 235 Nm: a gain of 55 hp (+65%) and 75 Nm (+47%).

This is a petrol engine with a displacement of 1,197 cc and engine code CJZ. The engine is controlled by the Bosch MED17.5.21. The software file can be written with tools such as Alientech KESS3, Autotuner and CMD CMDFlash.

Besides Stage 1, the following options are available for this vehicle: DECAT, DTC Removal, START/STOP OFF, FLAPS, Pop & Bang Crackle map and Vmax.

Frequently asked questions

How much power and torque does a Seat Leon 1.2 TSI 85hp gain with Stage 1?

About 55 hp and 75 Nm: from 85 hp / 160 Nm to roughly 140 hp / 235 Nm. The exact gain depends on engine condition and fuel quality.

Which ECU does a Seat Leon 1.2 TSI 85hp use?

Bosch MED17.5.21.

Which tools can read a Seat Leon 1.2 TSI 85hp?

Alientech KESS3, Autotuner and CMD CMDFlash.

Which extra options are available for a Seat Leon 1.2 TSI 85hp?

DECAT, DTC Removal, START/STOP OFF, FLAPS, Pop & Bang Crackle map and Vmax.

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