Siemens · MSD81.X

6577475204 6577475262 0044RD0QHC0SQBS2S Siemens MSD81.X BMW 3 Series (2.0 170hp) Original ECU File

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About this file

This is the original ECU file 6577475204 6577475262 0044RD0QHC0SQBS2S for BMW 3 Series 2.0 170hp: Siemens MSD81.X, hardware (HW) 6577475204, software (SW) 6577475262. To buy it, use Quick buy below — €20 by card, no registration, a ready-to-use .bin file by e-mail — or buy it with a file-service account (register or log in and top up your balance). Also you can find all available options on our platform for emissions removal (DPF, EGR, AdBlue) or improving power with stage 1/2/3 or ECO tuning.

This is an original (stock) read of a Siemens MSD81.X control unit. Our catalogue lists it for the BMW 3 Series 2.0 170hp.

Its numbers in the catalogue: hardware (HW) number 6577475204, software (SW) number 6577475262 and calibration number 0044RD0QHC0SQBS2S.

Three other files in our catalogue have the same pair of numbers (6577475204 / 6577475262); they differ from this one in the ECU model and calibration. The versions list below links them: compare their numbers with your own read.

In our catalogue the hardware number 6577475204 is on 5 files for 1 vehicle and the software number 6577475262 is on 4 files for 1 vehicle.

All BMW 3 Series Siemens MSD81.X files: 46 in our catalogue.

What you receive

  • The original (stock) read of this ECU, exactly as read — no modifications.
  • A ready-to-use .bin file by e-mail — nothing to unpack or rename.
  • The original read only — no full backups, EEPROM, SGO, VBF or other formats.

Before you order

  • All sales are final. Check HW, SW and calibration against your own read before you buy.
  • Different tools expect different file sizes when writing to the ECU — make sure the file suits your device.

File specifications

Brand name and modelBMW 3 Series
Engine power2000 170HP
Engine codeN43B20O0
ECU brand nameSIEMENS
ECU model nameMSD81.X
ECU hardware6577475204
ECU software6577475262
ECU calibration0044RD0QHC0SQBS2S
ECU SW upgrade—
DAMOS / map pack IDCA4RDQHC

4 files with these numbers

They share the hardware and software numbers; the calibration and the vehicle tell them apart. Compare them with your own read — this page is 0044RD0QHC0SQBS2S.

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WinOLS map pack included

Original + map pack

The original .bin and its map pack (CSV) — for WinOLS and compatible software

€60one-off · card payment
  • 90 tuning maps for this software version — Variable Valve Timing (VVT), Spark Advance, Engine Torque, Air Control…
  • X / Y axes labelled correctly, correct factors
  • One ZIP by e-mail: .bin + .csv map pack
  • Axes checked against this original: 116 of 116 read correctly
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  • Map definitions only — no tuned file, no support
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WinOLS map pack for this file 90 maps

A WinOLS map export (CSV) made for this software version: tuning maps only, with correctly labelled X and Y axes and the correct factor for the data values — no maps for switching off emissions or errors. Maps by category:

Variable Valve Timing (VVT) · 23 mapsSpark Advance · 21 mapsEngine Torque · 20 mapsAir Control · 10 mapsLimiters · 9 mapsInjection System · 7 maps

For example: Exhaust, Exhaust - Catalyst protection, Limiter of knocking sensor, Optimal Spark Advance, Engine torque correction, Limiter of Maximum torque, Airflow mass through throttle valve, Engine load limiter…

See all 90 maps and buy — €60 All Siemens MSD81.X mappacks

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