SEAT · DCM6.2 ECU · diesel

SEAT LEON DCM6.2 tuning files

SEAT LEON on the DCM6.2: matched, calibrated and delivered with care. Across the matched variants stock power runs from 110 to 115 HP. 2 distinct variants are catalogued here. Diesel calibration here covers everything from a clean Stage 1 to the emissions-side work. 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

Solutions that apply to the DCM6.2 on this diesel platform. The exact set depends on the specific engine and software version.

Stage 1Stage 2DPF OffEGR OffAdBlue OffSwirl Flaps OffLambda / O2MAF OffTVANOx OffAGSReadinessStart/Stop OffOil PressureLimp Mode Off

Engine variants & ECU software

2 distinct variants for the SEAT LEON on the DCM6.2 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU
Catalog engine
1600 115HP
Engine code
CXXB
Controller brand
DELPHI
ECU
DCM6.2
Stock power
115 HP
ECU SW
4122
ECU HW
04L906056GT
SW upgrade
04L906056GT_4122
Calibration
04L906056GT_4122

Variant 2

ECU
Catalog engine
1600 110HP
Engine code
CXXB
Controller brand
DELPHI
ECU
DCM6.2
Stock power
110 HP
ECU SW
2787
ECU HW
04L906056AH
SW upgrade
04L906056AH_2787
Calibration
04L906056AH_2787

Related vehicles

Other vehicles built on the DCM6.2 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 DCM6.2?

Stage 1, Stage 2, DPF Off, EGR Off, AdBlue Off, Swirl Flaps Off, Lambda / O2, MAF Off, TVA, NOx Off, AGS, Readiness, Start/Stop Off, Oil Pressure, Limp Mode Off. The exact set depends on the specific engine and software version.

Do you cover the DCM6.2 ECU software on this model?

Yes — the SEAT LEON on the DCM6.2 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 DCM6.2 ECU Tuning Files | TuningBay