Skip to the content
TunerSuite Your own ECU file portal, from £699 File service · upload 24/7 WhatsApp Client portal
Cart Try the demo
  1. Home
  2. Tuning files
  3. Original

Original file

Original / Factory · Petrol · 550i 367hp

BMW E60-E61 550 original file Bosch HW 0261209092 · SW 377011

BMW E60-E61 550 Petrol 269.9 kW (367 HP) Original

2005, Petrol, 269.9 kW (367 hp)

367 HP Factory calibration Stock backup file, 490 Nm, Petrol

Calibrated ECU file for 0261209092 (SW 377011). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.

Performance projection

Matched engine: 550i 367hp, N62B48B, 4.8L, Petrol. Engine #978 in our gains database.

090180270360 1000200030004000500060007000 367 HP +0 490 Nm +0 HP Nm RPM 0120240360480
Stock · Factory · HP (left) · Nm (right) · Curve shape typical for this ECU family
Power
367 HPfactory calibration
Torque
490 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

    Your read must show hardware 0261209092 and software 377011.

  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 E60 E61 550
Model year 2005
Fuel / Induction Petrol
Factory power 269.9 kW (367 HP)
ECU manufacturer Bosch
ECU hardware 0261209092
ECU software 377011
Calibration stage Original (Factory)
Cylinder capacity 4799 CC
Compression ratio 10,5 : 1
Bore × Stroke 93,0 X 88,3 mm
OEM engine code N62B48B
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.

Engine550i 367hp CodeN62B48B Displacement4.8L Capacity4799 CC Compression10,5 : 1 Bore × Stroke93,0 X 88,3 mm FuelPetrol Engine ID#978
Stage Power Torque Δ HP Δ Nm
Original / Factory 367 HP 490 Nm — —
Stage 1 390 HP 525 Nm +23 (6.3%) +35
Stage 2 410 HP 540 Nm +43 (11.7%) +50
Stage 3 606 HP 760 Nm +239 (65.1%) +270
Stage 4 716 HP 907 Nm +349 (95.1%) +417
Fuel economy gain (vs. factory map, same driving profile): combined cycle −8% , full-load cruise −12%. Diesel calibrations typically net bigger combined-cycle savings thanks to shorter duty-cycle on low-load driving.

About this calibration file

This is the factory (original) ECU calibration for the 2005 BMW E60 E61 550 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 Bosch ECU with hardware number 0261209092 and software version 377011. 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 0261209092 (Bosch) 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 E60-E61 550 2005 Benzin 269.9KW with Bosch 0261209092 (Bosch software number 377011 ( 1037377011 )). This original file corresponds to a factory engine output of approximately 269.9 kW (~367 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 0261209092, 377011 (1037 + SW code). Use this file for diagnostics, cloning, recovery or as a base for custom remapping.

SHA-256 fingerprint190D2FCE B93D5AC2 37AC3A81 1C6EF1DD D8C07756 4AFE1722 EBDEBC05 F16224B6