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Original file

Original / Factory · Petrol · 318i 2000 16v 141hp

BMW E46 318i original file

BMW E46 318i Petrol 105.2 kW (143 HP) Original

2004, Petrol, 105.2 kW (143 hp)

141 HP Factory calibration Stock backup file, 196 Nm, Petrol

Calibrated ECU file . Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.

Performance projection

Matched engine: 318i 2000 16v 141hp, N42B20, Petrol. Engine #9451 in our gains database.

04080120160 1000200030004000500060007000 141 HP +0 196 Nm +0 HP Nm RPM 060120180
Stock · Factory · HP (left) · Nm (right) · Curve shape typical for this ECU family
Power
141 HPfactory calibration
Torque
196 Nmfactory calibration

Real data from Gains API. Dyno curve = typical ECU-family projection. Final gains depend on fuel, altitude, wear.

How it works

  1. Read your ECU

    With KESS, KTAG, AutoTuner or Flex. Keep the read: it is your way back.

  2. Match the numbers

    The numbers in your read must be the ones listed on this page.

  3. Pay and download

    Card, Apple Pay or Google Pay. The file is in your account straight away.

  4. 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, Petrol.

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 BMW
Vehicle model E46 318i
Model year 2004
Fuel / Induction Petrol
Factory power 105.2 kW (143 HP)
Calibration stage Original (Factory)
OEM engine code N42B20
File format BIN / ORI
Checksum Pre-corrected (ready to flash)
Delivery Instant download after payment

Engine performance matrix

Power, torque and fuel-economy figures for every tuning stage on this engine, sourced from the tuning-database Gains API. Values are healthy-engine crank numbers; real on-road gains vary with fuel, altitude and mechanical condition.

Engine318i 2000 16v 141hp CodeN42B20 FuelPetrol Engine ID#9451
Stage Power Torque Δ HP Δ Nm
Original / Factory 141 HP 196 Nm — —
Stage 1 155 HP 217 Nm +14 (9.9%) +21
Stage 2 164 HP 228 Nm +23 (16.3%) +32
Stage 3 233 HP 304 Nm +92 (65.2%) +108
Stage 4 275 HP 363 Nm +134 (95%) +167

About this calibration file

This is the factory (original) ECU calibration for the 2004 BMW E46 318i Petrol, 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 OEM ECU. 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

The file is written for the exact ECU hardware 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.

Two reasons. First, if your ECU write failed mid-flash and you need a verified stock image to recover from — this file restores the unit to the exact calibration it left the factory with. Second, if you plan to experiment with a tune and want a known-good rollback point that is guaranteed identical to a BMW dealer programming.

Instant. As soon as the payment clears, the file appears under Downloads in your account and the link is emailed to you. It does not expire: sign in and download it again whenever you need it.

Pre-corrected. Every tuning file we sell is processed through CHKSuite (our in-house checksum engine) before it reaches your download link. You can flash it directly with KESS, KTAG, AutoTuner, CMD, Dimsport or any other supported tool — no extra checksum step required. A zero-CRC write to a modern Bosch/Siemens/Delphi ECU bricks the unit, so this is non-negotiable.

Contact us on WhatsApp or through the dashboard support thread. Free revisions are included for the same stage on the same ECU — send us a live log (via VCDS, INPA, EcuConnect, OBDeleven or similar) and we'll adjust timing, boost, rail pressure or smoke limits and re-issue the file. A failed flash itself (write aborted, bricked ECU) is recoverable with our Original file and a bench tool.

Product details

This product contains a complete original ECU backup (stock file) for BMW E46 318i 2004 Benzin 105.2KW . This original file corresponds to a factory engine output of approximately 105.2 kW (~143 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 the ECU part number in the product title.Use this file for diagnostics, cloning, recovery or as a base for custom remapping.

SHA-256 fingerprintDCC2DC41 60F1E890 531A331C 3846A92F D11127CB 978B3D73 6B5AF2C9 7D7365FC