This BMW MSD81 ECU Cloning Service is designed for all N54-equipped BMWs using the upgraded MSD81 DME. This module replaced the earlier MSD80 and resolved common issues like MOSFET failures and injector driver faults — but MSD81 units still fail due to water damage, corrupted flash memory, or no-communication conditions.

Using advanced bench programming hardware, we perform a full data transfer from your original MSD81 to your replacement unit, including:

• Full flash memory

• EEPROM data

• ISN (immobilizer)

• VIN

• Vehicle coding

• Adaptation data (when supported)

• Injector calibrations (if stored in DME)

Your replacement ECU is programmed to be a direct plug-and-play match, with no dealer coding or CAS alignment required.

SUPPORTED BMW MODELS (MSD81 – N54 ENGINE)

MSD81 is used on the later N54 vehicles from 2009–2013.

3-Series (E90/E91/E92/E93) – 2009–2013

• 335i

• 335xi

• 335is

• 335i xDrive

1-Series (E82/E88) – 2009–2013

• 135i

• 1M Coupe (E82)

5-Series (E60) – 2009–2010

• 535i

• 535xi

Z4 (E89) – 2009–2016

• Z4 sDrive35i / 35is

X6 (E71) – 2009–2011

• X6 xDrive35i

If your BMW has the N54 engine and is 2009 or later, it likely uses MSD81.

WHAT YOU NEED TO SEND IN

• Original MSD81 DME

• Replacement DME (used or new)

• Note including:

  • Name

  • Phone

  • Return shipping address

  • Vehicle year/make/model

WHAT’S INCLUDED

• Full MSD81 data extraction

• EEPROM + Flash cloning

• ISN immobilizer transfer

• VIN + coding transfer

• Corruption scan & validation

• Bench verification (if supported)

• Plug-and-play configuration

TURNAROUND TIME

• 1–2 business days

• Same-day rush available