MHD Flasher N54 icon

MHD Flasher N54 APK

MHD Flasher is a complete tuning solution for your N54 engine powered BMW.

version 1.91 for Android
4.8 | 1233 Reviews
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The explanation of MHD Flasher N54

MHD Flasher is the first Android handheld application to bring ECU tuning and monitoring to the BMW N54 engine. The MHD Flasher reveals the immense margin of power BMW left on the table with the N54 while still retaining the sophistication of the original engine management program.

→ Easy to install
Connect any compatible Android device to your car using a standard K+Dcan cable along with an OTG USB adapter, install one of the pre-purchased MHD maps and enjoy the power and performance benefits of the MHD maps by Wedge Performance.

→ Keep an eye on the tuning
Monitor your engine behavior using a configurable gauges layout to keep an eye on any of the 50+ engine monitors like oil temp, boost pressure, actual load or individual cylinder ignition timing. Activate the logging mode to save up to 30 monitors to a standard CSV file for later analysis. Track issues by reading the error codes, and delete them once resolved.

→ Flash your ECU back to a stock anytime, as often as you need to. No ECU backup is needed.

→ Custom tuning support
As an alternative to built-in maps, many tuners can provide advanced custom mapping for those who have higher or special performance needs.

The MHD Flasher can be downloaded here:

Main features description:

═══ Flasher module ═══
- Flash built-in maps (purchased separately), piggyback backend maps or custom user-tuned .BIN files.
- Backup up the stock ECU software, as fast as 3 seconds on most of the cars.
- Provides handy options like power limiter per gear, wastegate rattle fix or exhaust burble settings.
- Read / delete engine trouble codes.
- Reset adaptation values (Lambda, Fuel/air, Octane rating, VANOS, Throttle, and Battery).
- 2 minutes map switching; initial install time: 18 minutes on KLINE cars (2007 & Early 2008), 38 minutes on DCAN cars (2008+).

═══ Monitor module ═══
- Extensive logging values list, up to 30 values at the same time.
- Save logging session to .CSV files
- Integrated csv log viewer
- Up to 8 configurable gauges
- Automatic or manual log session start.

═══ Optional MHD maps packs ═══
- Maps by Wedge Performance
- Stage 1 pack. Eight maps: 4 fuel octane variants, stock / upgraded FMIC variants.
- Stage 2 pack. Eight maps: 4 fuel octane variants, stock / upgraded FMIC variants. High flow downpipes recommended.
- Ethanol mix pack. Three maps (e25, e40 and e60), FMIC+DPs recommended. Upgraded fuel pump for the e60.

Supported vehicles:

2006-2010 135i, 335i and 535i
2011-2013 335is
2009-2015 Z4 35i/is
2011-2012 1M
2008-2010 X6 35i

This racing product is for competition closed course use only.

Required hardware:
- 1 device running Android 3.2 and up, USB OTG compatible.
- 1 K+Dcan cable. See page 5 of the user manual for a recommended cable:
- 1 USB OTG cable.

Price list (licenses are VIN Locked and stored by Google along your Play store account):
- Flasher module: $99
- MHD maps packs: $49 each. Requires the Flasher module.
- Monitor module: $69
- JB4 backends only flasher: $79. Upgradable for $20 to the full $99 flasher module.
- Increased boost limit (from 18 to 22 PSI) module: $49. For custom tuning purpose. Requires the Flasher module.


Q: Can I test the connection before making a purchase?
A: Yes, simply tap the MHD Store button. The ECU connection is checked before displaying available purchases.

Q: Does my Android device need to be permanently plugged to the OBD port?
A: No. Once a flash is performed you can unplug your device.

Q: Do I need to purchase a new license each time I flash a map?
A: No, you can ref lash as many times as needed.

Q: Is a battery charger required?
A: It is highly recommended for long flashes (install, uninstall). A healthy battery will handle short flashes (map changes) fine but the use of a battery charger remains recommended.

MHD Flasher N54 App version 1.91 Version Update

Feb 11, 2020
♦ v1.91 ♦
✓ v9.0 beta maps integration.

♦ v1.9b ♦
✓ v8.1 maps integration.
✓ Better shifts for v8.0 maps on xHP or Alpina AT.
✓ Fixed monitor crash on some devices.

♦ v1.8 ♦
✓ Added support for the MHD Wifi E series adapter.
✓ Added Knock and Idle adaptation reset.
✓ Added a "send report per email" button in read codes to ease sharing codes, VIN, rom version with tuners.
✓ Disabled the 2fa4 code systematically.
✓ Use the CAS vin when writing DME UIF (so replaced DMEs report the proper VIN).

Additional App Info

Operating System: Android
Category: Auto & Vehicles
Publish Date: Apr 12, 2015
Latest Version: version 1.91
Min Installs: 50000
Installs: 50,000+
Size: 34M
Requirements: Android 3.2 and up
Offers In-App Purchases: true
Contains Ads: false
Price: Free
Report: Flag as inappropriate
App uploaded by: Individual
Available on: Google Play Store

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Rating And Reviews

Vishnu Patel 5
Nov 18, 2019 US

Made my car faster than audi 2018 RS3 400bhp version not bad for a 10 year old stock car! Used it for around 18 months no major issues

Helpful Report
Cameron Prescott 5
Sep 01, 2019 US

The app is very easy to use and the results are amazing! For the next update I think a ghost cam idle would be a pretty cool add on with a slider that controls how choppy you want it to be.

Helpful Report
Cory Holmgreen 5
Nov 18, 2019 US


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Adam Skutela 5
May 23, 2019 US

Very easy and straight forward way to tune your n54 or other bmw engines. Car runs smoother then the oem factory settings. Well priced as $150us to tune a car is not expensive. 5 star service.

Helpful Report
Frantzy Ulysse 5
Feb 23, 2020 US

Five star regardless the app crashing at random times

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Parker Smith 5
Jun 18, 2019 US

Took a few tries to get it loaded but I got it. Night and day difference. It should have came this way!!!!

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AutoGlass 2Go 5
Oct 22, 2019 US

Why can't you see the battery voltage

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Fico Pendavis 5
Jun 26, 2019 US


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M M 5
May 18, 2019 US

no issues

Helpful Report
Brandon Hakki 5
Apr 03, 2019 US

idk why elon musk doednt invest into mhd. its the easiest way to turn a car into a rocketship

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Chris Joubert 5
Nov 18, 2019 US


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