Original file
Original / Factory · Diesel · 525D 163hp
BMW E39 525TDS original file Bosch · SW 090799
BMW E39 525TDS Turbo Diesel 119.9 kW (163 HP)2002, Turbo diesel, 119.9 kW (163 hp)
163 HP Factory calibration Stock backup file, 350 Nm, Diesel
Calibrated ECU file for (SW 090799). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.
Performance projection
Matched engine: 525D 163hp, 256D1, 2.5L, Diesel. Engine #960 in our gains database.
- Power
- 163 HPfactory calibration
- Torque
- 350 Nmfactory calibration
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 software 351761.
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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: Factory, Diesel.
Hardware
- Factory hardware: no modifications required
Software / calibration
- OEM calibration restored (recovery / immobiliser / coding work)
Original files are used to revert to factory state, repair after a faulty tune, or recover an ECU before service work.
Product details
This product contains a complete original ECU backup (stock file) for BMW E39 525TDS 2002 Turbodiesel 119.9KW with Bosch 0 (Bosch software number 351761 ( 1037351761 )). This original file corresponds to a factory engine output of approximately 119.9 kW (~163 HP). This file is ideal for ECU cloning, restoring the car back to stock and using it as a safe base for future remaps.
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 0, 351761 (1037 + SW code). Use this file for diagnostics, cloning, recovery or as a base for custom remapping.
1CABE72E 36FD8AA7 3AEE763A CC048F67 BAA0E16C FC229DFA 2F9B7138 11FE7465Frequently 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.