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R230 Auxiliary Power Control Module (BCM Replacement Solution)

Engineered Alternative to OEM BCM Failure

Failure of the original auxiliary Battery Control Module (BCM) is a known issue on the R230 platform.

When the BCM fails, common symptoms include:

• Red battery warning on the dashboard

• Deactivation of auxiliary systems

• Charging irregularities

• Expensive replacement recommendations

New OEM modules often exceed €2,000 and used units carry significant risk due to age and repeated failure patterns.

• Improved design for power transfer by using brass leads instead of steel. The surface area has increased to 20mm2 from the original 10mm2 significantly improving power loss and heat generation of 0,005 Watts
• Fuses 40A on the main leads to protect the board against overconsumption
• Any existing boards are well over 20 years old, sometimes repaired units. The design flaw remains often induced by moisture in the trunk. The Everdrive unit is IP67 moisture rated.

This solution provides a structured and modern alternative.

Choose Your Configuration

🥉 CAN Emulator Module – €379

For owners implementing an external DC-DC charging solution

This module:

• Connects directly to the original BCM connector

• Communicates on the vehicle CAN network

• Eliminates BCM-related warning messages

• Allows proper auxiliary battery system operation when paired with a suitable DC-DC charger

Ideal for technically experienced owners implementing a modular charging setup.

Features:

• Plug & play connector design

• Compact, sealed housing

• Designed for automotive vibration environment

🥈 Integrated BCM Replacement Board – €599

OEM Housing Retrofit Solution

This version is designed to be installed inside the original BCM housing after removal of the failed circuit board.

Includes:

• Integrated CAN emulator

• Built-in DC-DC charging module

• 40A fused battery protection

• Pre-configured internal wiring

• Designed to reuse original external casing

• OPTIONAL: Remote control for emergency starting using both batteries. 

Advantages:

• OEM appearance retained

• No external add-on boxes

• Structured power protection

• Modern charging architecture

• Immediate availability

This solution preserves the factory look while modernizing internal power management components.

Why This Approach?

The original BCM design combines:

• Battery management

• DC-DC conversion

• CAN communication

When internal electronics fail, the entire unit is typically replaced.

This solution separates these functions into a modular, serviceable architecture while maintaining correct vehicle communication.

Designed for Long-Term Ownership

This product is intended for:

• Owners facing BCM failure

• Vehicles with recurring auxiliary battery issues

• Long-term R230 keepers

• Workshops seeking a structured alternative

Restore Functionality — Without OEM Replacement Cost

• Eliminate warning messages

• Maintain auxiliary battery operation

• Avoid uncertain used modules

• Avoid multi-thousand-euro replacement

Pricing

CAN Emulator Module: €379
Integrated BCM Replacement Board: €599