Free

Details

  • Released
  • Updated
  • May 14, 2020
  • September 14, 2026

Features

MHD Flasher screenshot #1 for iPhone
MHD Flasher screenshot #2 for iPhone
MHD Flasher screenshot #3 for iPhone
MHD Flasher screenshot #4 for iPhone
MHD Flasher screenshot #5 for iPhone
MHD Flasher screenshot #6 for iPhone
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About

This app allows for complete DME remapping of BMW vehicles, offering maximum performance and safety. It provides full OBD flashing, pre-configured performance maps, and advanced engine monitoring capabilities. Users can also customize various flash options for a personalized driving experience.

✓Complete DME remapping
✓Full OBD flashing
✓Pre-configured performance maps (Stage 1, 2, E85)
✓Advanced engine monitoring
✓Customizable flash options
✓Revert to factory OEM flash
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What users say

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What's New in MHD Flasher

5.30

September 14, 2026

- Added new B58 flash option: Custom throttle pedal mapping per mode (normal/s/s+). - Added NLS (no-lift shift for 6MT) flash option for S58. - Added Race Launch Control for Gen2 B58 and S58, for custom tunes (OTS flash option coming soon). - Added Push to Pass (scramble boost) for Gen2 B58 and S58, for custom tunes. - Added Moon Tune (closed loop boost control and boost targeting up to 8bar) for Gen2 B58 and S58. - Added Line Lock control via the ReFlex for Gen2 B58 and S58. - Fixed issue with exhaust flap open in sport on LCI F10 M5. - Added support for any manual transmission swap, including full sequentials, for Gen2 B58 and S58.

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User reviews

Selber Schuld wer nicht MHD auf seinen BMW nutzt!

M4 G82 / S58

Für mich die einfachste und sicherste Tuning-Lösung überhaupt. Du kannst jederzeit dein Tuning selber nach belieben anpassen und aufs Auto flashen, mit unglaublich vielen verschiedenen Möglichkeiten und Einstellungen. Dazu Mapswitching mit bis zu 4 verschiedenen Maps direkt während der Fahrt. So kann man sein Setup jederzeit an die jeweilige Situation anpassen.

Dazu kommen regelmäßige Updates und ein schneller, hilfreicher Support, wenn man mal Fragen oder Probleme hat. Man merkt einfach, dass hinter MHD ein Team steckt, das ständig weiterentwickelt und auf seine User eingeht.
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Excellent tuning app and outstanding customer support

I contacted MHD with a few technical questions about Stage 2 and Stage 2+ on my S55 engine. Their team responded quickly, clearly, and honestly. They didn’t try to sell me unnecessary upgrades—instead, they explained exactly what made sense for my setup and fuel quality.

It’s rare to find this level of transparency and technical knowledge. The app works great, the tuning is reliable, and the support is first-class.

Highly recommended!
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For b58 better off getting mg flasher

Comparing the mhd b58 stage 2.5map 95oct with the mg flasher b58 stage 2.5map 95oct, the mg flasher has better throttle response , faster turbo spool , cleaner logs with no timing corrections.

Error

S63 X6M F86, After the update, when loading the map, 2 errors appear! Please fix this in the stock

S55

Ci vuole nuovo aggiornamento s55 bootmod3 passerò a loro vanno più forte di mhd

Developer apps

User experience

🐞

Reported Bugs

16 issues

App crashes on iOS 26.2 and newer versions

Bug

Unable to flash after recent updates

Bug

Unable to erase memory errors

Bug

App fails to open after installation

Bug

Connection constantly disconnects on N55 F30 platform

Bug

Unable to upload logs to SpoolStreet

Bug

Cannot edit burples settings after update

Bug

Failed flashes (7+ consecutive failures reported)

Bug

Invalid credentials error on new device login

Bug

Monitor license not functioning

Bug

Anti-lag feature cannot be removed once flashed

Bug

Lumpy cold start with startup roar enabled

Bug

WiFi adapter disconnects during mapping

Bug

Unable to prepare memory section errors

Bug

User guide PDF crashes app

Bug

Missing custom tunes after app migration

Bug
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Requested Features

11 requests

Add 94 octane fuel option

Feature

Support for diesel engines

Feature

Support for N63 engine tuning

Feature

Max cooling fan option in new app

Feature

Ability to change login email/username

Feature

License transfer capability for car sales

Feature

Support for Gen 2 B58 with MHD+ features

Feature

Ability to revert to previous OTS map versions

Feature

Detailed release notes for OTS map updates

Feature

Custom tune file transfer to new app

Feature

Burbles setting in regular mode (not just sport mode)

Feature

FAQ

What does the MHD Flasher app do?

The MHD Flasher app is a complete flash tuning application for BMW vehicles. It enables full DME remapping, allowing for enhanced performance and drivability while retaining OEM safety mechanisms. The app also provides advanced engine monitoring and customizable flash options.

What are the key features of MHD Flasher?

Key features include full OBD flashing for easy installation and map changes, pre-configured Off-The-Shelf (OTS) maps for various stages and fuel types (like E85), advanced engine parameter monitoring, and customizable flash options such as exhaust burble, Vmax removal, and gear-specific power limits.

Is MHD Flasher free to use?

Based on the provided information, the MHD Flasher app is available for free. There are no mentions of subscription fees, in-app purchases, or advertisements within the app's description.

What BMW models are supported by MHD Flasher?

The app supports various E-Series BMW models including the 135i, 135is, 335i, 535i (2006-2013), 335is (2011-2013), and Z4 35i/is (2009-2015). It also supports N55, S55, and B58 engine variants, and has XHP TCU flash support.

How does MHD Flasher compare to a piggyback module?

Unlike a piggyback module, MHD Flasher is capable of complete DME remapping. This means it directly reprograms the vehicle's Engine Control Unit (ECU) for more comprehensive tuning, while still ensuring all original OEM safety features are maintained for maximum performance and safety.