ANCEL BD300 OBD2 Scanner – Bluetooth Diagnostic Tool for BMW, MINI & Rolls-Royce

Why Choose the ANCEL BD300 Bluetooth OBD2 Scanner for BMW?

Many handheld BMW diagnostic tools on the market feature large sizes, small screens, button-based operation, and complex interfaces—making them inconvenient for everyday use. The ANCEL BD300 addresses these issues with a compact design that fits easily in your pocket, intuitive touchscreen operation, and a clear, user-friendly interface for straightforward vehicle diagnostics. As an upgraded version of the BD200, the BD300 adds dedicated BMW-specific modules to its core functionality.

Full System Diagnostic Support for BMW, MINI, and Rolls-Royce

1. Engine System

Supports all standard OBDII modes. Quickly identifies engine issues, turns off the check engine light, helps pass emissions tests, improves fuel efficiency, and maintains optimal vehicle performance.

2. Transmission System

Early detection of transmission problems is key—most fault codes originate from this system. The BD300 retrieves transmission-related trouble codes before minor issues become major repairs.

3. Airbag (SRS) System

The Supplemental Restraint System (SRS) deploys airbags to protect occupants during collisions. The BD300 can read and clear SRS fault codes and turn off the airbag warning light.

4. ABS System

The Anti-lock Braking System (ABS) modulates brake pressure to prevent wheel lockup during hard braking, maintaining approximately 20% slip for maximum tire grip and vehicle control.

5. Battery Matching System

The BD300 evaluates battery charge levels, monitors short-circuit current, registers new battery installations, activates vehicle hibernation mode, and supports battery charging through the diagnostic port.

6. CBS Correction

Supports BMW’s Condition Based Servicing (CBS) system, which monitors component wear—including oil life, cabin air filter, brake pad thickness, brake fluid condition, spark plugs, and (on diesel models) the diesel particulate filter (DPF).

7. EGS Clear Adaptation

Automatic transmissions require precise maintenance to avoid costly repairs. The BD300 enables proper transmission service procedures and adaptation resets.

Manufacturer-Level Diagnostics for BMW Vehicles

• Battery Registration

  Updates your vehicle’s system when a new battery is installed. Required for all 2002 and newer BMW models after every battery replacement.

• Throttle Relearn

  Resets the throttle actuator to its initial state and clears ECU learning values, ensuring precise throttle control and accurate air intake management.

• Maintenance Reset

  After servicing, reset the maintenance interval (mileage or time) to turn off the maintenance reminder light and start a new service cycle.

• Brake Pad Reset

  When brake pads wear down, the sensor triggers a dashboard alert. After replacing the pads, use the BD300 to reset the system—otherwise, the warning will persist.

Supported Languages

English, French, Spanish, German, Italian

Basic Diagnostic Functions for BMW / MINI / Rolls-Royce

• Read & clear fault codes
• Turn off warning lights
• Read live data stream (text and graph)
• Perform I/M Readiness test
• Conduct smog emission test
• Run EVAP system test
• Retrieve vehicle information