# MHD N55 E-Series

> Engine diagnostic and data logging tool for E-Series vehicles, transitioning to a unified app. (iPhone/iPad app by MHD Tuning UG (haftungsbeschraenkt).)

- Source: https://appshunter.io/ios/app/mhd-n55-e-series/id1502611398 (this page in markdown: same URL + `.md`)
- Developer: [MHD Tuning UG (haftungsbeschraenkt)](https://appshunter.io/developer/1445162439)
- Category: Utilities, Sports
- Price: Free
- Rating: 4.60/5 from 53 App Store ratings · 24 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.2 · 123 MB
- Released: 2020-05-14
- Data updated: 2026-06-11
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/mhd-n55-e-series/id1502611398/reviews.md

## What is MHD N55 E?

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!

## Key features

- Read and clear engine DTC error codes
- Graph and analyze prior datalogs
- View existing vehicle licenses
- Access user guide
- Transition to unified flasher app

## Recent user reviews (10 of 24)

All indexed reviews: https://appshunter.io/ios/app/mhd-n55-e-series/id1502611398/reviews.md

### 1/5 — Pas en Français !!!

*2025-10-22, version 2.35*

L’application n’étant toujours pas en français, je ne l’achèterai jamais ce système de modification !
Le jour où tout sera en français, et donc compréhensible pour moi là je l’achèterai !!!

### 5/5 — Чип

*2024-12-19, version 2.35*

Пользуюсь, все ок. Рекомендую. Но при этом приобретите лицензию прошивки на АМ.

### 5/5 — Super outil

*2024-11-06, version 2.33*

Tout simplement la meilleur alternative pour reprogrammer et logger sa voiture.
Hâte que les nouvelles maps 2.0 sortent

### 5/5 — Great

*2024-03-07, version 2.33*

Fantastic app but way behind on features compared too all the rest of the platforms.

### 5/5 — Amazing have been using for over a year daily

*2023-07-24, version 2.33*

Everything from minor diagnostics to tuning and editing capabilities are in matched. I’m able to upload even custom tunes from my tuner if I’d like through MHD App. Their OTS tunes have had my car pushing that little extra power but still underrated to bmws OE parts so I’m not constantly worrying about my engines health.

### 1/5 — WARNING: mhd does not stand behind their products

*2023-06-26, version 2.33*

I’ve had a terrible experience with this company.  Purchased orange mhd adapter and mhd monitor license.  Could not log at all. It only showed READY and no option to log until they released app update. Then the adapter keeps disconnecting randomly. Mhd blamed phone Bluetooth, and it still disconnects with bt disabled.  Mhd is a liar.  Asked for refund and received a rude response.

### 5/5 — Amazing Platform

*2023-04-13, version 2.32*

I've had this for almost two years and it does everything within the app, diagnosing, reseting adaptation, logging, guages, and all tuning options you could ask for. I HOPE to see an anti-lag option soon though, YES we want an anti-lag option! Thank you for developing an app so easy to use!

### 3/5 — Stage 1 seems disappointing

*2023-04-12, version 2.32*

Honestly can’t really tell a difference between stage 1 and stock. Running latest map. Stage 1 seems like no power added on a 135is

### 2/5 — Not good.

*2022-11-10*

They need to add Vargas Stage 2 and Pure Stage 2 Turbo upgrade maps ASAP. The N55 E-Series cars are way too left out, underworked and left behind. So much stuff that N54‘s and F-Series N55‘s get to choose from we don’t have.

### 5/5 — MHD more features

*2022-05-23, version 2.30*

Love the MHD on the N55e and I would love to see more development on the older platforms!!!

## Frequently asked questions about MHD N55 E

### What is the MHD N55 E-Series app?

This app was designed for E-Series vehicles to read and clear engine diagnostic trouble codes (DTCs), graph and analyze datalogs, and view vehicle licenses. It is now being retired and users are directed to a unified flasher app.

### What functionality remains in the MHD N55 E-Series app?

Despite being retired, the app retains the ability to read and clear engine DTC error codes, graph and analyze your prior datalogs, view your existing vehicle licenses, and access the user guide.

### Is this app still supported?

No, this specific app is being retired. Users are strongly encouraged to switch to the unified "MHD Flasher" app, which supports a wider range of E/F/G series vehicles and engines, as well as Supra.

### How do I switch to the new app?

The description states that this app will remain as a shell to help you switch over to the unified "MHD Flasher" app. You should look for instructions within the app or on the developer's website to facilitate the transition.

### Is there a cost to use the remaining features or switch apps?

The provided information indicates that the app has no ads and no in-app purchases, suggesting the remaining features are free. The monetization model for the new unified app is not specified, but users are directed to switch, implying it's the intended path forward.

## Version history (last 5 releases)

### 2.35 — 2024-12-13

- 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.

### 2.33 — 2023-06-20

- Added ability to start app on logging screen.
- Added an XDF table to easily deactivate any DTC error code in a custom tune.
- Flat STFT fix for all tunes (OTS or custom).
- Late N55: added Dorch stg2 option, updated Dorch stg1 settings.
- Updated Universal Wifi adapter (red) firmware with multiple improvements.
- Added easy import of custom log channel files (provided by tuner or MHD team).
- Removed 375C code from all tunes.

### 2.32 — 2022-09-14

- Added support for upcoming MHD Universal Wifi adapter.

### 2.31 — 2022-09-07

- Added support for upcoming MHD Universal Wifi adapter.

### 2.30 — 2022-03-25

- Thorough data logging update that brings the E-Series N55 ROMS up to date with the F-Series logging parameters (where applicable) and includes many bug fixes.
- Added 1.84 updated maps: better boost control, dropped 1+ maps and added e30 stg1 and 2 maps. Older 1.60 maps still available.
- Improved DCT trans setting for 98G0B.
- Removed code 352A- protection against tampering, engine power too high.
- Fixed MHD N55-E folder not showing in Files app on latest iOS updates.

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## More apps by MHD Tuning UG (haftungsbeschraenkt)

- [MHD Flasher N54](https://appshunter.io/ios/app/mhd-flasher-n54/id1445162440)
- [MHD Flasher](https://appshunter.io/ios/app/mhd-flasher/id1468182144)

All apps by MHD Tuning UG (haftungsbeschraenkt): https://appshunter.io/developer/1445162439

## Related topics

[mhd n55](https://appshunter.io/ios/topics/mhd-n55) · [mhd s55](https://appshunter.io/ios/topics/mhd-s55) · [mhd tuning n55](https://appshunter.io/ios/topics/mhd-tuning-n55) · [mhd tuning ug](https://appshunter.io/ios/topics/mhd-tuning-ug) · [mhd flasher](https://appshunter.io/ios/topics/mhd-flasher) · [mhd](https://appshunter.io/ios/topics/mhd) · [mhd tuning](https://appshunter.io/ios/topics/mhd-tuning) · [mhd n54](https://appshunter.io/ios/topics/mhd-n54) · [keiser m series](https://appshunter.io/ios/topics/keiser-m-series)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*