Factory features.
No dealer visit.

Remote Start, M Driver’s Package, M Drive Professional. Sent to your BMW from your phone, in your garage, not at a shop.

Download on the App Store
COMING SOONGoogle Play

Free app · Free feature check · Pay only when you flash

A hand holding a BMW key; behind it an M4 wakes up in a parking garage.

Remote Start
With your key or the My BMW app

How it works

Three steps. No dealer.

All you need is your phone and the MHD Universal Adapter, the one most people who flash their own car already have.

Plug in

Connect your MHD Universal Adapter to the OBD port under the dashboard and open the app.

Pick a feature

The app reads your car and shows which features it supports. The check costs nothing.

Flash

Sit back for about ten minutes while the flash runs. In your garage or on a parking lot.

Available features

What your BMW is hiding.

ComfortAVAILABLE

Remote Start

Start the engine and heat or cool the cabin while the car stays locked. Triggered from your key or the My BMW app.

TriggerKey fob or BMW app
ClimateHeating and A/C
SecurityDoors stay locked
PerformanceAVAILABLE

M Driver’s Package

The factory Vmax limiter, raised. Top speed opens up depending on your vehicle.

305km/h

New limit270 to 305 km/h
Depends onVehicle model
Same asFactory MDP option
TrackCOMING

M Drive Professional

The full track package, exactly like ordered from the factory.

M Track ModeIncluded
Traction control10 steps
M Drift AnalyserIncluded
In workOPF-Delete Map and more Features are coming. Everything without unlock, as always.
Why Casto Flasher

Built for people who flash their own car.

No unlock. Ever.

Everything goes over OBD. Your ECU never leaves the car.

Free check first.

The app lists every feature your car supports before you pay a cent.

Yours for good.

If a BMW update removes a feature, flash it again at no extra cost.

Hardware you own.

Works with the MHD Universal Adapter that is probably already in your glovebox.

Pricing

Pay per flash. Once.

No subscription. App download and compatibility check are free.

Remote StartEUR 149One-time · stays after updates
M Driver’s PackageEUR 149One-time · stays after updates
M Drive ProfessionalTBACOMING
FAQ

Questions

Do I need an unlock or a bench setup?

No. Everything goes over OBD without an unlock. Your ECU stays in the car the whole time.

What hardware do I need?

The MHD Universal Adapter. If you already flash your own car, chances are it is sitting in your glovebox.

Is my car supported?

Download the app and run the free check. It lists every feature your car supports before you pay anything. Two cars that look identical on paper can answer differently, so the check at the car is the answer we stand behind.

What happens after a BMW software update?

Your purchase is tied to your car. If an update removes a feature, flash it again at no extra cost.

Can a feature be removed again?

Yes. The app can put your car back the way it was before the installation, in the same place, with the adapter plugged in.

What happens to my warranty?

Changes to your car can affect what a dealer covers. We are not the manufacturer and cannot speak for them. If this matters to you, ask your dealer before you buy, and remove the feature before a service visit.

Is remote start even allowed in Austria and Germany?

What Austria and Germany actually regulate is letting an engine run while the car is parked, and those rules apply to every car, with or without Remote Start. The function itself is the manufacturer’s own software and switches off after 15 minutes at the latest. Know the rules for the place where you park, and use it there with judgment.

Your BMW can do more.
Flash it tonight.

Free download. Free feature check. Flash in about ten minutes.

Download on the App Store
COMING SOONGoogle Play