SEAT · SIMOS10.12 ECU · petrol

SEAT LEON SIMOS10.12 tuning files

Tuning file coverage for the SEAT LEON running the SIMOS10.12 ECU. Across the matched variants stock power runs from 105 to 105 HP. Petrol calibration here is about crisp response and a result that holds up day to day. Each file is tied to the precise software on your car and checked before it goes out.

Upload your file →All LEON coverage

Available solutions

What we can run on the SIMOS10.12 for this petrol — the precise options narrow down by engine and software version.

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

Engine variants & ECU software

4 distinct variants for the SEAT LEON on the SIMOS10.12 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU
Catalog engine
1200 105HP
Engine code
CBZB
Controller brand
SIEMENS
ECU
SIMOS10.12
Stock power
105 HP
SW upgrade
03F906070CG_9857
Calibration
03F906070CG_9857

Variant 2

ECU
Catalog engine
1200 105HP
Controller brand
SIEMENS
ECU
SIMOS10.12
Stock power
105 HP
SW upgrade
03F906070J_9859
Calibration
03F906070J_9859

Variant 3

ECU
Catalog engine
1200 105HP
Engine code
CBZB
Controller brand
SIEMENS
ECU
SIMOS10.12
Stock power
105 HP
ECU HW
65769966P1
SW upgrade
03F906070HC_2659
Calibration
03F906070HC_2659

Variant 4

ECU
Catalog engine
1200 105HP
Engine code
CBZB
Controller brand
SIEMENS
ECU
SIMOS10.12
Stock power
105 HP
SW upgrade
03F906070HC_3611
Calibration
03F906070HC_3611

Related vehicles

Other vehicles built on the SIMOS10.12 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 SIMOS10.12?

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 SIMOS10.12 ECU software on this model?

Yes — the SEAT LEON on the SIMOS10.12 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.

SEAT LEON SIMOS10.12 ECU Tuning Files | TuningBay