Audi A6 1.8 T 1997 Turbo-Benzin 110.3KW Bosch 0261204256 4B0907557A 357473 Stage3

Audi A6 1.8 T 1997 Turbo-Benzin 110.3KW Bosch 0261204256 4B0907557A 357473 Stage3
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ECU file for Audi A6 1.8 T 1997 Turbo-Benzin 110.3KW – Stage3 performance tuning file. ECU: Bosch 0261204256 – SW: 4B0907557A / 357473 ( 1037357473 ) – for vehicles with factory output around 110.3 kW (~150 HP).

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Technical Specifications
ManufacturerAudi
ECU SystemBOSCH
CalibrationStage 3
ECU HW / SW number0261204256 | 4B0907557A | 357473
CHECKSUMS CORRECTED / READY TO FLASH
COMPATIBLE WITH: KESS V2/V3, MPPS, FOXFLASH, AUTOTUNER, FLEX, CMD, NEW GENIUS & OTHER PROFESSIONAL INTERFACES
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Your tuning file is available immediately after purchase — no waiting.

Checksum Safe

Every file is verified and checksum-corrected for safe, reliable flashing.

Tool Compatible

Works with KESS, KTAG, AutoTuner, CMD, PCMFlash, and all major interfaces.

Engineer Support

Our tuning engineers are available via WhatsApp for any technical questions.

Vehicle Audi A6 1.8 T 1997 Turbo-Benzin 110.3KW
Engine power 110.3 kW (~150 HP)
Fuel type Turbo-petrol
ECU brand Bosch
ECU hardware 0261204256
ECU software ID 4B0907557A
Bosch software number 357473 ( 1037357473 )
Tuning type Stage3
Read method / notes 4B0907557A 357473

This product contains a calibrated Stage3 tuning file for Audi A6 1.8 T 1997 Turbo-Benzin 110.3KW with Bosch 0261204256 and software ID 4B0907557A (Bosch software number 357473 ( 1037357473 )). The base stock vehicle for this calibration has a factory output of around 110.3 kW (~150 HP). This high-stage file targets heavily modified setups (bigger turbo, injectors etc.) and should be used by experienced tuners only.

All ECU tuning files from TUNING-DATABASE are prepared for professional use. They are useful whenever you search by ECU ID, hardware or software number such as 0261204256, 4B0907557A, 357473 (1037 + SW code). Use this file for diagnostics, cloning, recovery or as a base for custom remapping.

hash: 4ABA923C8ED136BF56E3C0D5C06F7C145F765D65A31021C1616D3315C203859D

Frequently Asked Questions

Use your preferred tuning tool (KESS, KTAG, AutoTuner, CMD, etc.) to write the file to the ECU via OBD, bench, or boot mode.

Yes. Every file we sell has verified checksums — ready to flash without additional correction tools.

Contact us via WhatsApp or the support dashboard. Revisions for the same stage are free.

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