MHD N55 E-series

MHD Tuning UG

About this app

This app is being retired. Please switch to our unified "MHD Flasher" app which now supports all E/F/G series vehicles / engines as well as Supra.

This app will remain as a shell to help you switch over. Additionally, some functionality will remain to read and clear engine DTC error codes, graph and analyze your prior datalogs, view your existing vehicle licenses, and access the user guide!

Ratings and reviews

Flashed my ECU to get rid of an issue with the stock outdated BMW software (idle issue/throttle lag/rpm surge when coming to a stop). The app also has some decent error code reading and adaption resets. Very pleased with MHD and highly recommended for all enthusiasts. Well done MHD and keep it up... Now it's time for me to flash xHP :)

Bcus I had to find out the hard way it left me stranded when changing just burble settings from 0,5 to 0,3s and on my new Samsung galaxy a52s 5g flashing does not work at all it does start flashing and after 5min it stopsand it left the car inoperable I have to use my old Honor 9 lite Make sure that you stay on top of your device/app updates, chrome and device sync on otherwise its not working, try device restart aswell. I feel like its getting more complicated, please keep it simple, thank you.

Yes, I have a question about my gauges not working. When I plug my phone up to my car, I click on the data logging button. It then sometimes says "contacting dme" or "if screen doesn't clear in 1 minute restart phone." I have tried all of that and the gauges show up, but they do not move when I am driving. What should I do?

What’s new

- Our separate N54 and N55E apps are being retired. Please switch to our unified "MHD Flasher" app. This app will remain as a shell to help you switch over.