From 110 hp to about 140 hp: the Seat Leon 1.2 TSI 110hp (5F MK1 – 2012 – 2017) becomes noticeably stronger and more responsive with Stage 1 software. Torque climbs from 175 Nm to about 235 Nm.

This is a petrol engine with a displacement of 1,197 cc and engine code CYV. The engine is controlled by the Bosch MED17.5.21 and Bosch MED17.5.25. The software file can be written with tools such as Alientech KESSv2, Autotuner, CMD CMDFlash and MagicMotorsport Flex.

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 110hp gain with Stage 1?

About 30 hp and 60 Nm: from 110 hp / 175 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 110hp use?

Bosch MED17.5.21 and Bosch MED17.5.25.

Which tools can read a Seat Leon 1.2 TSI 110hp?

Alientech KESSv2, Autotuner, CMD CMDFlash and MagicMotorsport Flex.

Which extra options are available for a Seat Leon 1.2 TSI 110hp?

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.