Stop KM/Mile Freezer for the BMW Z4 G29 With Working Speedo!!

Overview

Our BMW Z4 G29 mileage blocker is a dedicated plug-in module designed for the BMW Z4 G29. It temporarily stops mileage (or kilometres) from being recorded while the vehicle is in motion, and is intended only for off-road use, dyno testing, and vehicle development or tuning.

Compatibility

This mileage blocker is compatible with:

• BMW Z4 G29
• Model years: 2018 – current
• For vehicles with the display as shown in the product images

If you are unsure whether your vehicle is compatible, please contact us with your VIN and a photo of your dashboard before ordering.

Key features

• True plug-and-play installation – fits directly behind the cluster, with no cutting or soldering required.
• OEM-style connectors – supplied with original-type plug connections for a secure, factory-style fit.
• Control at the touch of a button – activate or deactivate the module with a button press, even while driving.
• No error messages when active – no warning lights or fault codes are triggered when correctly installed.
• No mileage jump on removal – when removed and the car is returned to standard, the odometer does not catch up or jump forward.
• Memory of last setting – the module remembers whether it was on or off when the vehicle was last used.
• Full functionality retained – the speedometer and driver assistance systems continue to operate normally.

How the mileage blocker works

The module is a small microcomputer that plugs into the wiring behind the vehicle’s instrument cluster. It selectively blocks and filters the mileage signal so that the odometer and related control units do not record additional distance while the module is active, while the system remains stable with no warning lights when correctly installed. When deactivated, the vehicle behaves as normal and mileage is recorded in the usual way.

Quality and testing

• Each unit is programmed and tested in-house before dispatch to ensure correct operation on the specified vehicle type.
• Modules are built using high-quality components and designed for long-term use in the dashboard environment.
• Every kit includes a clear, step-by-step instruction pack. We recommend installation is carried out by a suitably experienced auto electrician or specialist.

Vehicle-Specific Information

• Cluster/display and software version affect which operating modes apply. Confirm the fitted display/cluster before ordering.

If you are unsure about compatibility, please contact us with your VIN and a clear photo of the dashboard / instrument cluster before ordering.

Full Installation Instructions

1. Switch the vehicle off and allow the electrical systems to shut down.
2. Access and remove the instrument cluster using the correct procedure for the vehicle.
3. Disconnect the original cluster / dashboard plug.
4. Connect the module inline between the original vehicle harness and the instrument cluster using the supplied original-style connectors.
5. On harnesses with a Pin 1 marker, align the connector marker correctly and connect the cluster side first.
6. Ensure the plugs are fully seated, secure the module and route the wiring away from sharp edges or moving parts.
7. Refit the cluster and trim.
8. Switch the vehicle back on and verify normal display and vehicle functions.

No cutting or soldering is required.

Activation / Mode Change

• Hold BC until the indicator lights flash; repeat to cycle modes.

Modes

• Mode 1 — 1 flash: speedometer works; 0% mileage. Described for pre-2019 software.
• Mode 2 — 2 flashes: 0% mileage; speedometer does not work. Described for newer software.
• Mode 3 — 3 flashes: speedometer works; 30% mileage.
• Mode 4 — 4 flashes: speedometer works; 50% mileage.
• Mode 5 — 5 flashes: normal operation.

Return To Normal

• Cycle to Mode 5 (5 flashes = normal).

Confirmation

• Indicator flash count identifies the mode.

Shipping and availability

• UK and worldwide shipping available.
• Most in-stock orders are dispatched the same day.
• Next working day UK delivery options are available at checkout for eligible in-stock orders.
• International delivery options are available depending on destination.

Important information

• This product is supplied strictly for off-road, motorsport, dyno testing, and tuning purposes only.
• It is the customer’s responsibility to ensure use of this device complies with all applicable laws and regulations in their country or region.

If you have any questions about fitment, compatibility, or installation, please contact our team before placing your order.