01 / MOSTUNED APP
Choose your calibration.
Choose a power level supported by your package and car. Manage burble, cold start, Vmax and RPM in one place.
VIN authorisation required
What would you like to learn?
- What do you need to flash your BMW? — Vehicle compatibility, connection and VIN access: what to check before your first flash.
- What does Unlock Check check? — Understand the difference between an ECU lock check and VIN-authorised Flash access.
- Flasher or a ready-made power package? — Compare the licence to write your own file with MOSTUNED calibration packages.
- How do you use MOSTUNED Logger? — View live vehicle data, review recordings and prepare useful information for support.
MOSTUNED Flasher: step-by-step instructions
MOSTUNED Flasher is included at no extra cost with every engine tuning package. Flash access is assigned to your VIN; available calibrations and features depend on your package.
- 1 Install the app and connect. Download MOSTUNED from the App Store. Plug the ENET cable or WiFi-ENET adapter into the OBD socket, connect your iPhone and find the car from Connect. Your phone also needs internet access for writing.
- 2 Verify the vehicle and access. Check the displayed VIN, engine and ECU details. Required unlocking must be complete and your Flash package assigned to this VIN. If your package is missing, contact MOSTUNED before buying it again.
- 3 Choose a ready package and settings. Open Ready Package in Flash. Select an authorised calibration suitable for your car and fuel; configure burble, Cold Start and Sport Cooling where supported. My Own File is for users with a separate compatible file.
- 4 Prepare to write. Keep the ignition on and the engine off. Connect suitable battery charging support and switch off unnecessary electrical loads. Check phone power, internet and the vehicle connection. Resolve the app’s preparation or error messages before writing.
- 5 Review Final Confirmation and start writing. Check the VIN and selected file again. Keep the app open and phone unlocked; do not remove the adapter or switch off the ignition. The progress percentage alone does not mean the job is finished; wait for the success message.
- 6 Check the result. Follow the app’s completion instructions. To change Flash settings later, make your selection and complete preparation and writing again. If an error appears, contact MOSTUNED support with the on-screen message.
Selecting a setting in Flash does not change the car immediately; the write operation must finish to apply it. See the guide for preparation and detailed instructions.
Flasher use and package coverage
Do burble or Sport Cooling settings apply as soon as I select them?
Selecting a setting in Flash does not change the car immediately; the write operation must finish to apply it. See the guide for preparation and detailed instructions.
Does complimentary Flasher include every power level and Map Switch?
Flasher access is separate from calibration and optional-feature coverage. You can use the levels and supported features assigned to your vehicle. Options such as 321 Edition and Map Switch retain their own package and hardware requirements.
Does the package include an ENET cable or adapter?
Complimentary Flasher access does not establish that connection hardware is included. Read the connection guide and confirm hardware coverage with MOSTUNED before obtaining a cable or adapter.
FROM SOFTWARE TO THE ROAD
A new connection to your BMW.
Calibration, diagnostics and live data. One app, right at your fingertips.
02 / MOSTUNED APP
See the data. Understand your drive.
Follow live sensor data with Logger. Review how your car responds through recorded logs.
Free
03 / MOSTUNED APP
Know your car first.
Read and clear fault codes. Check lock status with Unlock Check and understand what is needed before flashing.
Free
Screens are shown in demo mode; vehicle and sensor values are simulated.
App access
MOSTUNED is available on the App Store. Fault reading / clearing, Unlock Check and Logger are free. Flash works with authorised VINs.
Five steps to your first connection
- 1 Open the MOSTUNED App Store page on an iPhone running iOS 16.1 or later.
- 2 Download MOSTUNED for free and open the app.
- 3 Connect to the car using an ENET or WiFi-ENET adapter.
- 4 Start the connection in the app and check the VIN, ECU and unlock status.
- 5 If your car is supported, choose an appropriate flash package. Coding appointments are a separate service.
Flash compatibility
Verified coverage: Turkish-market BMWs with the 1.6L B48B16 (1,597 cc / MG1CS003 ECU) engine — 320i (G20), 420i (G22/G26), 520i (G30) and X3 sDrive20i (G01). Coverage is expanding and will be announced here; ask anyway if your car is not listed.
The broader BMW coding catalogue does not mean that every model supports mobile flashing. Check eligibility before buying.
Before flashing
Check vehicle and phone power. Follow the preparation steps in the app, ensure a stable connection and keep the adapter connected throughout the process. If the app reports an error or compatibility warning, contact support before proceeding.
Connection and support
What if my car won’t connect?
Check the adapter and selected network connection. If the issue continues, send support your car model, iPhone model and error screen.
What if the ECU is locked?
Let’s assess the unlock requirement before flashing. Explore the unlock service.
Are coding services included in the app?
Feature coding and gearbox installation are appointment services included in the €750 complete 300 HP package. Standalone coding costs €150; Stage 2/3 with Gear Display costs €250. M Track module installation is separate.
Connection hardware
- ENET cable and WiFi-ENET adapter guide — What you need and what does not work
- BMW fault code guide — What the code means and common causes
Contact
Get in touch
WhatsApp: +90 547 470 40 40
Email: [email protected]
Instagram: @mostuned
Istanbul · Monday–Saturday 09:00–18:00 (TR time) · Remote service by appointment
Not sure?
Send your model, hardware and goal — we will pick the right package together. We do not sell what does not fit.