Product Information

Redline Autohaus & Performance offers this BMW MSD80 to MSD81 ECU / DME upgrade service for select E-Series N54 applications originally equipped with the Siemens MSD80 DME. This service is intended for owners who want to move to the later MSD81 platform to reduce long-term MSD80-related injector and ignition concerns.

You must provide a used MSD81 from a supported donor unit along with the original CAS and original key shown in the product images. Redline performs the conversion, verifies compatibility, and returns the upgraded set ready for installation.

Supported Applications

• BMW E82 135i from 12/2006 to 08/2008 with N54
• BMW E88 135i from 12/2006 to 08/2008 with N54
• BMW E90 335i from 08/2006 to 08/2008 with N54
• BMW E91 335xi from 08/2006 to 08/2008 with N54
• BMW E92 335i from 08/2006 to 08/2008 with N54
• BMW E93 335i from 08/2006 to 08/2008 with N54
• BMW E60 535i / 535xi from 04/2008 to 08/2008 with N54
• BMW E89 Z4 35i from 07/2008 to 08/2008 with N54

What You Need To Send

• Your original MSD80 DME
• A supported used MSD81 donor DME
• Your original CAS module
• Your original vehicle key

Supported MSD81 Donor Numbers

Common supported Siemens MSD81 numbers include 7578033, 7578034, 7579011, 7579012, 7583324, 7583325, 7585540, 7585541, 7585711, 7585712, 7585889, 7585890, 7586933, 7586934, 7590871, 7590872, 7592080, 7592081, 7593493, 7593494, 7596019, 7596020, 7596021, 7596022, 7600427, 7600428, 7601865, 7601866, 7602118, 7602119, 7604567, 7604568, 7604593, 7604594, 7605662, 7605663, 7608621, 7608622, 7611358, 7611359, 7612455, 7612456, 7614620, 7616431, 7616432, 7618935, 7618936, 7622911, and 7622912.

Service Notes

• Price is set in USD for this catalog entry
• Customer must supply a compatible used MSD81 donor unit
• 1-year warranty and fast turnaround advertised in the service artwork
• Contact Redline Autohaus to confirm donor compatibility before shipping