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Dynotest for BMW 3 Series - G20, G21, G80, G81
2019-2024

€ 307.50
(incl. taxes)

Previous lowest price was € 307.50.

Product code : DNTBMWG

Product Information

Pay attention!

The (BC) will not function properly because it cannot calculate values without having the mileage and it's NORMAL. When the device is activated, the on-board computer readings ("Average fuel consumption", "Current fuel consumption", "Fuel") and the navigation monitor ("On-board information" or "Trip computer", "Cruising range", "Distance to destination", "Fuel economy") will have incorrect values. After deactivating the device, you must RESET the on-board computer from the BC and the navigation menu. The BC will then start working correctly again.

Adaptive cruise control, ACC and radar work in all modes!

This device is specifically designed for testing BMW 3 Series - G20, G21, G80, G81 cars.

It provides the capability to temporarily suspend (freeze) the odometer during car testing, preventing the accumulation of additional mileage.

Installing this device may cause the displayed average and current fuel consumption to be higher than the actual values.

It is not intended to be used on public roads.

The Plug&Play technology eliminates the need for soldering during installation.

Simply follow the video instructions for proper connection.

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How to install
BMW 3 Series - G20, G21, G80, G81

Dashboard

Button

Information about the operation modes of the device on BMW 3 Series - G20, G21, G80, G81 cars.

The hazard warning light on the dashboard will blink each time the device switches between modes.

1
Mode 1
Press and hold the "BC" button for 10 seconds.
The hazard warning light will blink once.
The mileage block function will be not active.
Speedometer will show the actual speed.
2
Mode 2
To activate this mode, press and hold the "BC" button for 10 seconds.
The hazard warning light will blink twice.
The odometer will register 40 km for every 100 km driven.
Speedometer will show the actual speed.
3
Mode 3
Press and hold the "BC" button for 10 seconds.
The hazard warning light will blink three times.
The odometer will register 30 km for every 100 km driven.
Speedometer will show the actual speed.
4
Mode 4
ONLY for cars with software update BEFORE 2019.
Press and hold the "BC" button for 10 seconds.
The hazard warning light will blink four times.
The odometer will register 1-2 km for every 100 km driven.
Speedometer will show the actual speed.
5
Mode 5
Press and hold the "BC" button for 10 seconds.
The hazard warning light will blink five times.
The odometer will register 1-2 km for every 100 km driven.
Speedometer will NOT show the actual speed.

Unlock the full potential of your BMW 3 Series with professional-grade dynotest services designed specifically for modern BMW platforms G20, G21, G80, and G81 (model years 2019–2024). Whether you drive a refined 320i, a powerful M340i, or the high-performance M3 Competition, accurate dynotesting is the key to understanding your vehicle’s real-world performance and tuning potential.

Our dynotest procedure delivers precise measurements of horsepower, torque, and drivetrain efficiency under controlled conditions. Unlike generic diagnostics, this service focuses on real performance data, allowing you to see how your BMW truly behaves on the road and under load. It is an essential step for enthusiasts, tuners, and anyone considering ECU optimization or Stage 1 tuning upgrades.

With advanced calibration tools and high-precision measurement systems, our dynotest ensures that every result is reliable and repeatable. This allows you to evaluate factory performance, detect hidden power losses, or confirm gains after software modifications. For modern turbocharged BMW engines, even small adjustments in airflow, fuel mapping, or boost pressure can significantly impact output — and dynotesting is the only way to verify those changes accurately.

The BMW 3 Series G-platform is known for its balance of luxury and performance, but factory settings often leave untapped potential. Our dynotest service helps reveal this hidden power, giving you a clear roadmap for further tuning upgrades, improved throttle response, and optimized engine efficiency.

We also provide professional consultation based on dyno results. If you are planning ECU remapping, downpipe upgrades, intake improvements, or full performance tuning packages, dynotesting becomes the foundation of a safe and effective build strategy. Every test is performed by experienced technicians with deep knowledge of BMW engineering standards.

Choose dynotest for BMW 3 Series and gain real insight into your vehicle’s performance — not guesses, but precise data. Ideal for daily drivers, tuning enthusiasts, and professional workshops

IMPORTANT FOR SUCCESSFUL INSTALLATION AND USE

1. During device connection/disconnection, the ignition must be turned off.
2. Switching between modes should be done on a stationary car.
3. When the device is in use, the selected mode will be retained (saved) after the ignition is turned off/on.

OTHER, ALTERNATIVE PRODUCT NAMES SEARCHED FOR:

Mileage Blocker, Mileage Stopper, Odometer Stopper, Odometer Blocker, Mileage Correction, CAN Filter, CAN Blocker, Mileage Freezer, Odometer Freezer, CAN Freezer.

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ATTENTION!

The use of this device is intended for lawful purposes only. Using it may result in loss of guarantee coverage from your car manufacturer.