Stock file restore is an online file service that provides you with the original factory ECU calibration. Upload your current file and receive back a verified OEM stock file, removing all modifications.

Stock File Restore Service

ECU stock file restore

A stock file (also called original file) is the unmodified factory calibration that came pre-programmed in your ECU. It contains all OEM maps and emission controls exactly as designed by the manufacturer, with no tuning or modifications.

Importante: Stock file restore is a custom service requiring a quote request. We maintain a database of verified original files cross-referenced by ECU part number, software version, and hardware revision. Our stock files include complete checksum correction and are ready to flash.

⚠ What You Will Lose: Restoring to stock removes ALL previous modifications including Stage tuning, DPF OFF, EGR OFF, AdBlue OFF, IMMO OFF, speed limiter removal, and any other changes. The file returns to 100% factory specifications. If you need to keep some modifications (like IMMO OFF), contact us for a custom solution.

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When Do You Need a Stock File?

  • Vehicle sale or trade-in – dealers require original ECU calibration
  • Emissions testing – MOT, TÜV, ITV require all emission systems active
  • Warranty service – manufacturer service needs factory calibration
  • Post-tuning problems – diagnose if issues are tuning-related
  • Legal compliance – return to emission-compliant configuration

Cómo funciona

  1. Request quote – submit your ECU details (part number, SW version, HW version) via our custom quote form
  2. Upload your current file – we verify compatibility and identify the correct stock file
  3. Receive stock file – we deliver the verified original file with correct checksums
  4. Flash to your ECU – use your flash tool to write the stock file

Delivery time: Stock files are typically delivered following the same timeframes as our standard tuning service. Complex or rare ECU variants may require additional verification time.

Supported ECU Families – Stock File Database

Complete coverage of ECU families with verified original factory calibrations.
Fabricante Familias ECU compatibles Arquitectura / MCU Marcas típicas de vehículos
Bosch (MDG1 / MG1 / MD1) MD1CS001, MD1CS002, MD1CS003, MD1CP002, MD1CP004, MD1CP006, MD1CP007, MG1CS001, MG1CS002, MG1CS011, MG1CS016, MG1CS111, MG1CS261, MD1CE100, MD1CE101 Infineon Tricore TC298 / TC299 / TC275 / TC277 VW, Audi, BMW, Mercedes, Porsche, Ford, PSA, Volvo, Opel, Fiat
Bosch (EDC17 / MED17 / ME17) EDC17CP04, EDC17CP14, EDC17CP20, EDC17CP22, EDC17CP44, EDC17CP48, EDC17C46, EDC17C49, EDC17C64, EDC17CV41, EDC17CV54, MED17.1, MED17.1.1, MED17.3, MED17.5, MED17.5.21, MED17.7, ME17.5, ME17.9.8 Infineon Tricore TC1766 / TC1796 / TC1797 / TC1793 / TC1767 VW, Audi, BMW, Mercedes, PSA, Ford, Opel, Porsche, Volvo, FCA, GM
Magneti Marelli (Familia completa) IAW 4LV, IAW 4MV, IAW 4EF, IAW 4SF, IAW 5AM, IAW 5AF, IAW 7GF, IAW 7SM, MJ8DF, MJ9DF, MM6LP, MM6LP2, MJD6F3, MJD8F2, MJD8DF, MJD10F3, MM8GF, MM8GM, MM8GV, MM10JA ST10F275 / MPC555 / MPC561 Fiat, Alfa Romeo, Lancia, Jeep, Abarth, Iveco
Siemens / Continental (SID / SIMOS / PCR / EMS) SID201, SID203, SID204, SID206, SID208, SID209, SID211, SID807, SID807EVO, SID801, SID803, SID804, SID902, SID903, SID904, SID906, SIMOS 8.x, SIMOS 10.x, SIMOS 11.x, SIMOS 12.x, SIMOS 16, SIMOS 18, PCR2.1, EMS2.x, EMS3.x Renesas SH705x / SH725xx / Infineon Tricore VW, Audi, Skoda, Seat, Renault, Volvo, Ford, Kia, Hyundai, Peugeot, Citroën
Delphi (Familia completa) DCM3.2, DCM3.3, DCM3.4, DCM3.5, DCM3.7, DCM6.2, DCM6.3, DCM6.4, MT05, MT10, MT22.1, MT22.2, MT32, MT38, MT60, MT80, MT86, MT90, MT92, MT240 MPC55xx / MPC56xx / Tricore Renault, Nissan, Mercedes, Ford, PSA, Hyundai, Kia, GM, Opel, camiones
Opel / GM Delco (serie E) Delco E37, E39, E67, E69, E78, E80, E82, E83, E87, E92, E98, E99 Freescale MPC55xx / MPC56xx Opel, Chevrolet, Buick, Cadillac, Holden
Denso (16 bits / 32 bits) 175822, MB275800, SH7055, SH7058, SH7059, SH72531, SH72543, SH72546 Renesas SH705x / SH725x Toyota, Mazda, Subaru, Ford, Suzuki
Transtron (Isuzu / Hino) Familias Transtron 4JJ1, 4HK1, 4HE1 Renesas SH725xx 32 bits Isuzu, Hino
TRW (Volvo Trucks) EMS2, EMS2.2, EMS2.3, ACM (Módulo de control de postratamiento) MPC561 / MPC555 / MPC5566 Volvo Trucks, Renault Trucks, Mack

Technical Notes

  • What we provide: verified original calibration matched to your ECU part number, SW version, and HW code
  • File format: BIN, HEX, or other format compatible with your flash tool
  • Checksum: complete checksum correction for flash and EEPROM regions
  • VIN and IMMO: we can preserve your VIN data or provide virgin file as needed
  • Hardware requirement: if emission hardware was removed (DPF, EGR, AdBlue), reinstall it before flashing or request custom hybrid file

Additional ECU Families Supported

Beyond the main families above, our database includes stock files for these legacy and specialized ECU platforms:

  • Bosch EDC15 (all variants)
  • Bosch EDC16 families
  • Bosch ME7.x (all variants)
  • Bosch M3.x / M5.x series
  • Siemens MS41 / MS42 / MS43
  • Siemens MSS5x series
  • Siemens EMS2 / EMS3
  • Siemens SIMTEC 71 / 75 / 76
  • Marelli IAW 4AF / 4AV / 4EF / 4LV / 4MV / 4SF
  • Marelli IAW 5AM / 5AF / 5NF / 7GF
  • Delphi MT series (all variants)
  • Delco E-series (all variants)
  • Hitachi automotive ECUs
  • Kefico ECU platforms
  • Mitsubishi automotive ECUs
  • Sagem S2000 / S3000
  • Temic / TRW truck ECUs
  • Visteon DCU platforms
  • Ford EEC-IV / EEC-V / EEC-VI
  • Motorcycle ECUs
  • Agricultural equipment ECUs
  • Marine engine ECUs

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Database coverage is continuously expanded. If your ECU is not listed, contact us with your ECU details and we’ll verify availability.