SEAT · SIMOS 18 ECU · petrol

SEAT LEON SIMOS 18 tuning files

Tuning file coverage for the SEAT LEON running the SIMOS 18 ECU. Across the matched variants stock power runs from 180 to 300 HP. 9 distinct variants are catalogued here. It is a petrol platform, tuned for response and clean power delivery. Every file is matched to the exact calibration on your vehicle and signed off by an operator.

Upload your file →All LEON coverage

Available solutions

What we can run on the SIMOS 18 for this petrol — the precise options narrow down by engine and software version.

Stage 1 Stage 2 Swirl Flaps OffLambda / O2OPF/GPF Off

Engine variants & ECU software

9 distinct variants for the SEAT LEON on the SIMOS 18 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 2000 300HP
Controller brand: SIEMENS
ECU: SIMOS 18
Stock power: 300 HP
Calibration: 8V0906264M_0001

Variant 2

ECU

Catalog engine: 2000 280HP
Generation: 5F Mk1 2012-2017
Matched gains engine: 2.0TSI Cupra 280
Controller brand: SIEMENS
ECU: SIMOS 18
Stock power: 280 HP
Stage 1 power: 350 HP
Power increase: +70 HP (+25%)
Stock torque: 350 Nm
Stage 1 torque: 460 Nm
Torque increase: +110 Nm (+31%)
ECU SW: 0003
ECU HW: 3G0906264
SW upgrade: 3G0906264_0003
Calibration: 3G0906264_0003

Variant 3

ECU

Catalog engine: 2000 280HP
Engine code: CJXA
Generation: 5F Mk1 2012-2017
Matched gains engine: 2.0TSI Cupra 280
Controller brand: SIEMENS
ECU: SIMOS 18
Stock power: 280 HP
Stage 1 power: 350 HP
Power increase: +70 HP (+25%)
Stock torque: 350 Nm
Stage 1 torque: 460 Nm
Torque increase: +110 Nm (+31%)
Calibration: 8VD906264A_0003

Variant 4

ECU

Catalog engine: 2000 280HP
Engine code: CJXA
Generation: 5F Mk1 2012-2017
Matched gains engine: 2.0TSI Cupra 280
Controller brand: SIEMENS
ECU: SIMOS 18
Stock power: 280 HP
Stage 1 power: 350 HP
Power increase: +70 HP (+25%)
Stock torque: 350 Nm
Stage 1 torque: 460 Nm
Torque increase: +110 Nm (+31%)
Calibration: 5TD906264_0003

Variant 5

ECU

Catalog engine: 2000 280HP
Engine code: CJXA
Generation: 5F Mk1 2012-2017
Matched gains engine: 2.0TSI Cupra 280
Controller brand: SIEMENS
ECU: SIMOS 18
Stock power: 280 HP
Stage 1 power: 350 HP
Power increase: +70 HP (+25%)
Stock torque: 350 Nm
Stage 1 torque: 460 Nm
Torque increase: +110 Nm (+31%)
Calibration: 5TD906264_0002

Variant 6

ECU

Catalog engine: 2000 280HP
Engine code: CJXA
Generation: 5F Mk1 2012-2017
Matched gains engine: 2.0TSI Cupra 280
Controller brand: SIEMENS
ECU: SIMOS 18
Stock power: 280 HP
Stage 1 power: 350 HP
Power increase: +70 HP (+25%)
Stock torque: 350 Nm
Stage 1 torque: 460 Nm
Torque increase: +110 Nm (+31%)
Calibration: 8VD906264A_0002

Variant 7

ECU

Catalog engine: 2000 280HP
Engine code: CJXA
Generation: 5F Mk1 2012-2017
Matched gains engine: 2.0TSI Cupra 280
Controller brand: SIEMENS
ECU: SIMOS 18
Stock power: 280 HP
Stage 1 power: 350 HP
Power increase: +70 HP (+25%)
Stock torque: 350 Nm
Stage 1 torque: 460 Nm
Torque increase: +110 Nm (+31%)
Calibration: 5NG906264_0002

Variant 8

ECU

Catalog engine: 1800 180HP
Controller brand: SIEMENS
ECU: SIMOS 18
Stock power: 180 HP
SW upgrade: 8V0906264H_0005
Calibration: 8V0906264H_0005

Variant 9

ECU

Catalog engine: 1800 180HP
Controller brand: SIEMENS
ECU: SIMOS 18
Stock power: 180 HP
SW upgrade: 3G0906264_0004
Calibration: 3G0906264_0004

Related vehicles

Other vehicles built on the SIMOS 18 controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the SEAT LEON on the SIMOS 18?

Stage 1, Stage 2, Swirl Flaps Off, Lambda / O2, OPF/GPF Off. The exact set depends on the specific engine and software version.

Do you cover the SIMOS 18 ECU software on this model?

Yes — the SEAT LEON on the SIMOS 18 ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.

How is the file delivered?

Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.