Mercedes-Benz W211 Trunk Battery Control Module - Used Original Parts
RM 350
Condition: Used (Original)Description
Product Title
Mercedes-Benz W211 Trunk Battery Control Module - Used Original Parts
Diagnosis and Common Symptoms
From the workshop floor, the W211's Battery Control Module (BCM) is a frequent culprit for a host of perplexing electrical issues. A failing module will disrupt the vehicle's sophisticated dual-battery power management, leading to distinct and often frustrating symptoms. The most common indicators we diagnose are the red "Battery/Alternator - Visit Workshop!" warning in the instrument cluster, even with a new battery and a tested alternator.
Drivers will also experience a "Convenience Functions Temporarily Unavailable" message, as the BCM fails to correctly manage the auxiliary battery circuit. A critical symptom is a severe parasitic drain that can deplete a fully charged main battery overnight. On a diagnostic level, a faulty BCM will typically log fault codes such as 9051 (Component N82 BCM is defective), 9091, or trigger CAN bus communication errors with related control units.
Introduction
Restore the critical power management system of your E-Class with a reliable, workshop-tested component. This is a Genuine Mercedes-Benz Trunk Battery Control Module, carefully removed from a donor vehicle. Each unit is rigorously bench-tested to verify correct voltage regulation, CAN bus signal integrity, and response to load, ensuring it performs precisely as the factory intended. Avoid the uncertainty of aftermarket parts and choose a proven, cost-effective solution.
Product Details
- Brand: Mercedes-Benz
- Model Compatibility: Mercedes-Benz E-Class (W211 Chassis | 2003-2009) - E320, E350, E500, E550, E55 AMG, E63 AMG
- Part Name: Trunk Battery Control Module (BCM) / Batteriesteuergerät
- Condition: Genuine Used (Tested Working)
- Notes: Located in the trunk spare tire well, adjacent to the main battery. It is essential to match the part number from your original module to ensure full compatibility with your vehicle's specific configuration.
Shipping
Location: Kuala Lumpur, Malaysia Shipping: West Malaysia RM50 (Estimate) / East Malaysia RM80 (Estimate) Delivery: 1-2 working days Packaging: Secure anti-static packaging, heavy-duty shock absorption. (We send actual photos/videos of the unit and packaging before shipping)
Warranty and Return Policy
- 30-day exchange warranty from the date of receipt.
- Proof of professional installation by a qualified workshop is required for warranty claims.
- No returns if the item is opened, modified, tampered with, or damaged due to incorrect electrical wiring.
- Exchange only for confirmed internal electronic defects.
How to Order
- WhatsApp us to confirm compatibility with your specific VIN.
- Send your chassis number or a clear photo of your old unit label.
- Confirm order details and stock availability.
- Receive actual product photos and diagnostic test confirmation.
- Make payment via bank transfer.
- Item is shipped immediately with tracking details provided.
Contact Us
Ready to order or have questions? Tap the WhatsApp button to chat with our team directly.
Price Notice
Price is estimated only. Actual price depends on current stock levels, specific part number revisions, and unit condition. Please WhatsApp us for a formal quote.
Compatible Models
Original Parts
Quality European Originals
Fast Delivery
Nationwide Shipping
