Stage 1
Stage 1 · Petrol · 1.8 TFSI 120hp
Audi A4 1.8 TFSI Stage 1 file Bosch · 8K1907115C · SW 503660
Audi A4 1.8 TFSI Turbo Petrol 88.3 kW (120 HP)2009, Turbo petrol, 88.3 kW (120 hp)
120 → 138 HP +18 HP +35 Nm 15% more power
Calibrated ECU file for 8K1907115C (SW 503660). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.
Performance projection
Matched engine: 1.8 TFSI 120hp, CABB, 1.8L, Petrol. Engine #327 in our gains database.
- Power
- 138 HP+18 HP from 120
- Torque
- 265 Nm+35 Nm from 230
- Fuel economy
- −8 %−12% full load
Real data from Gains API. Dyno curve = typical ECU-family projection. Final gains depend on fuel, altitude, wear.
How it works
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Read your ECU
With KESS, KTAG, AutoTuner or Flex. Keep the read: it is your way back.
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Match the numbers
Your read must show hardware 8K1907115C and software 503660.
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Pay and download
Card, Apple Pay or Google Pay. The file is in your account straight away.
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Write it and drive
Write it back the way you read it. Not right for your car? We correct it free.
What the car needs
Required modifications: Stage 1, Petrol.
Hardware
- No hardware changes required: runs on completely stock hardware
Software / calibration
- Boost / load targets optimised within factory hardware limits
- Ignition advance refined for the running fuel grade
- Throttle response and torque request remapped
- Factory safeties (knock, lambda, EGT) preserved
Stage 1 is a software-only calibration. Compatible with stock turbo, injectors, intercooler, exhaust and clutch.
Product details
This product contains a calibrated Stage1 tuning file for Audi A4 1.8 TFSI 2009 Turbo-Benzin 88.3KW with Bosch 8K1907115C (Bosch software number 503660 ( 1037503660 )). The base stock vehicle for this calibration has a factory output of around 88.3 kW (~120 HP). This Stage 1 calibration is designed for stock hardware, offering a safe and reliable increase in power and torque for daily use.
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 8K1907115C, 503660 (1037 + SW code). Use this file for diagnostics, cloning, recovery or as a base for custom remapping.
DDB797BA D9EC71A8 1B2EFF94 E2193E83 13965E79 4029C076 16833537 00EC9F57Frequently asked questions
How do I flash this file?
Use your preferred tuning tool (KESS, KTAG, AutoTuner, CMD, etc.) to write the file to the ECU via OBD, bench, or boot mode.
Is the checksum corrected?
Yes. Every file we sell has verified checksums — ready to flash without additional correction tools.
What if I need a revision?
Contact us via WhatsApp or the support dashboard. Revisions for the same stage are free.