AUDI · SIMOS 18.4 ECU · petrol

AUDI TT SIMOS 18.4 tuning files

The AUDI TT on the SIMOS 18.4, mapped from stock file to finished result. The matched variants sit between 252 and 252 HP from the factory. There are 2 distinct variants on file for this combination. Petrol calibration here is about crisp response and a result that holds up day to day. Every file is matched to the exact calibration on your vehicle and signed off by an operator.

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Available solutions

Solutions that apply to the SIMOS 18.4 on this petrol platform. The exact set depends on the specific engine and software version.

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

Engine variants & ECU software

2 distinct variants for the AUDI TT on the SIMOS 18.4 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU
Catalog engine
2000 252HP
Controller brand
SIEMENS
ECU
SIMOS 18.4
Stock power
252 HP
SW upgrade
4KD906259_0005
Calibration
4KD906259_0005

Variant 2

ECU
Catalog engine
2000 252HP
Controller brand
SIEMENS
ECU
SIMOS 18.4
Stock power
252 HP
SW upgrade
8W0906259C_0005
Calibration
8W0906259C_0005

Related vehicles

Other vehicles built on the SIMOS 18.4 controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the AUDI TT on the SIMOS 18.4?

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 18.4 ECU software on this model?

Yes — the AUDI TT on the SIMOS 18.4 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.

AUDI TT SIMOS 18.4 ECU Tuning Files | TuningBay