Original file
VW Golf3 GTI original file Siemens · 037906025G
Volkswagen Golf 3 GTI 84.6 kW (115 HP) Original2002, 84.6 kW (115 hp)
Calibrated ECU file for 037906025G. Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.
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 5WP4203.
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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.
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.
Vehicle & ECU specifications
Exact vehicle, engine and ECU identifiers this calibration file is written for. Cross-check against your ECU before flashing.
| Vehicle make | Volkswagen |
|---|---|
| Vehicle model | Golf3 Gti |
| Model year | 2002 |
| Factory power | 84.6 kW (115 HP) |
| ECU manufacturer | Siemens |
| ECU hardware | 5WP4203 |
| ECU software | 037906025G |
| Calibration stage | Original (Factory) |
| File format | BIN / ORI |
| Checksum | Pre-corrected (ready to flash) |
| Delivery | Instant download after payment |
About this calibration file
This is the factory (original) ECU calibration for the 2002 Volkswagen Golf3 Gti, extracted from a genuine stock control unit. Use it as a verified backup before flashing any performance tune, or as a reference when recovering an ECU from a failed write.
This file matches a Siemens ECU with hardware number 5WP4203 and software version 037906025G. Verify both identifiers in your flashing tool before writing — an ID mismatch is the most common cause of a bricked ECU. If you are unsure, upload a read of your original file via the file-request wizard and our engineers will confirm compatibility before you flash.
The file is delivered as a ready-to-flash BIN (and ORI backup where applicable) compatible with all major tools — KESS V2/V3, KTAG, AutoTuner, CMDFlash, Dimsport New Genius, MPPS, Flex, BFlash, PCMFlash, MMFlash — via OBD, bench or boot-mode as supported by your ECU family. Checksums are pre-computed and verified; no additional checksum tool is required. All files include a free revision if post-flash logs reveal a fuelling, boost or EGT issue.
Frequently asked questions
5WP4203 (Siemens) listed in the specifications. Read your ECU with any supported tool (KESS, KTAG, AutoTuner, CMD, etc.) and compare the hardware + software numbers against the ones on this page. If they match exactly, the file is a direct fit. If you're not 100% sure, upload your original read via the file-request wizard and our engineers will confirm within minutes — no cost, no obligation.Product details
This product contains a complete original ECU backup (stock file) for VW Golf3 GTI 2002 84.6KW with Siemens 5WP4203 and software ID 037906025G. This original file corresponds to a factory engine output of approximately 84.6 kW (~115 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 5WP4203, 037906025G. Use this file for diagnostics, cloning, recovery or as a base for custom remapping.
68A99D59 D931A15B B484B4DA CCCCCEBE 1BB08517 FC71D87E 584CEC4E 0EC1A886