BMW 7 Series Mileage Blocker (G11/G12)

Overview

The BMW 7 Series G11/G12 mileage blocker is an electronic module designed for vehicles equipped with the supported instrument-cluster configuration.

Using a plug-and-play connection behind the dashboard, it controls new mileage recording without cutting or soldering the original wiring. Its operating modes vary according to the vehicle’s software version, with normal speedometer and driver-assistance functionality retained where supported.

Compatibility

The Smelecom BMW 7 Series mileage blocker is compatible with:

• BMW 7 Series G11: 2015–2022
• BMW 7 Series G12: 2015–2022
• Instrument cluster: Display matching the product images
• Software: Mode availability and speedometer behaviour depend on the installed firmware.

The instrument-cluster type and software version are important compatibility factors. BMW G11 and G12 vehicles with different dashboard configurations may require another module from the BMW mileage blocker collection.

For compatibility assistance, contact Smelecom with your VIN, model year and a clear dashboard photograph before ordering.

Key Features

• G11/G12 compatibility: Designed for the supported BMW 7 Series instrument-cluster configurations.
• Plug-and-play fitting: OEM-style connectors allow installation without cutting or soldering.
• Five operating modes: Provides stopped, partial and normal mileage-recording settings.
• BC-button operation: Switches modes using the vehicle’s existing control, including while driving.
• Working speedometer: Maintains the speed display in supported modes, except Mode 2.
• Last-setting memory: Remembers the previous operating setting.
• No mileage catch-up: Prevents the odometer from jumping forward when the module is removed.
• Vehicle functionality: Designed to maintain supported driver-assistance systems without warning lights or fault codes when correctly installed.

How Does the BMW 7 Series Mileage Blocker Work?

A compact microcomputer connects between the BMW’s original wiring loom and instrument cluster, filtering mileage-related signals according to the selected operating mode.

The module offers different mileage-recording percentages, with speedometer behaviour determined by the software configuration. Indicator-light flashes identify the active setting, while Mode 5 restores normal mileage counting.

Quality and Testing

Each BMW G11/G12 module is programmed and tested in-house before dispatch using high-quality electronic components designed for long-term dashboard use.

The kit includes step-by-step fitting instructions. Professional installation is recommended for customers unfamiliar with BMW instrument-cluster electronics. General precautions are available through Smelecom’s mileage blocker installation support.

Shipping and Availability

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

Delivery conditions and returns are covered in the Smelecom delivery and returns policy.

Vehicle-Specific Guidance

The BMW 7 Series G11/G12 module’s operating modes depend on the vehicle’s instrument-cluster and firmware configuration.

Mode 1 is described for pre-2019 software, while Mode 2 applies to newer software and does not display road speed.

Confirm the instrument-cluster type and software version before installation.

Installation

The BMW G11/G12 mileage blocker connects inline with the original instrument-cluster wiring.

1. Switch off the vehicle and allow its electrical systems to shut down.
2. Access and remove the instrument cluster using the correct BMW G11/G12 procedure.
3. Disconnect the original instrument-cluster or dashboard plug.
4. Connect the module between the vehicle wiring loom and cluster using the supplied OEM-style connectors.
5. If a Pin 1 marker is present, align it correctly and connect the cluster side first.
6. Ensure all connectors are fully seated and secure the wiring away from sharp edges or moving parts.
7. Refit the instrument cluster and surrounding dashboard trim.
8. Switch the vehicle on and verify normal display and vehicle functions.

No cutting or soldering is required.

Activation and Operating Modes

The BMW 7 Series G11/G12 mileage blocker offers five operating settings, identified through indicator-light flashes.

Mode 1: 0% Mileage Recording

• 1 flash; speedometer works; mileage recording stops.
• Described for pre-2019 software.

Mode 2: 0% Mileage Recording

• 2 flashes; mileage recording stops; speedometer does not work.
• Described for newer software.

Mode 3: 30% Mileage Recording

• 3 flashes; speedometer works; 30% mileage recorded.

Mode 4: 50% Mileage Recording

• 4 flashes; speedometer works; 50% mileage recorded.

Mode 5: Normal Operation

• 5 flashes; module off, with normal speed display and mileage counting.

Activation and Confirmation

Hold the BC button until the indicator lights flash. Repeat the button hold to cycle through the available modes.

The flash count confirms the selected setting. To restore normal operation, select Mode 5, confirmed by five indicator flashes.

Important Information

The BMW 7 Series G11/G12 mileage blocker is intended for compatible 2015–2022 vehicles with the supported instrument-cluster and software configuration.

Customers are responsible for ensuring that purchase, installation and use comply with applicable laws and regulations. Any mileage discrepancy must be disclosed where legally required.

For assistance with BMW G11/G12 compatibility, software versions or installation requirements, contact Smelecom’s support team before ordering.