• Mercedes-Benz Battery Stabilization Control Load Module A2305401045 Repair Service 2305401045
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Mercedes-Benz Battery Stabilization Control Load Module A2305401045 Repair Service

Mercedes-Benz Battery Stabilization Control Load Module A2305401045 Repair Service

$750.00 USD
$750.00 USD
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Professional Repair Service

Mercedes-Benz R230 Battery Control Module
Remanufacturing & Repair Service

SL500 · SL55 AMG · SL600 · SL65 AMG · R230 SL-Class

A2305401045
A2305400945
Bosch 0 199 000 011
The Battery Control Module (BCM) is a critical failure point in the Mercedes-Benz R230 SL-Class. Due to aging internal components and high-amperage stress, these modules are prone to internal short circuits that can trigger "Consumer Electronics Offline" warnings, total vehicle power failure, or — in severe cases — thermal damage and trunk fires.

Our professional repair service goes beyond basic component replacement. We perform a deep-level circuit refurbishment to stabilize your vehicle's power management and prevent future failures.
Important: Repair Viability & Thermally Damaged Units If your module has suffered a catastrophic burn-up, the internal PCB layers may be carbonized. Carbonized fiberglass becomes electrically conductive, making a safe repair impossible. Units with extensive internal charring or melted housings are often beyond repair. We evaluate every unit upon arrival — if deemed Beyond Economic Repair (BER), we contact you immediately before any work proceeds.
Common Fault Codes Resolved
Fault Code Description
B1000 Internal Module Failure — N82/1 Control Unit
B1828 Component K57 (Battery isolating relay) fault / No Circuit 61
B1829 Starter battery circuit fuse defect
B1832 Component G1/4 (Start battery) fault
B1838 Short circuit at terminal 30 or 30a
9071 Component K57/2 (Auxiliary battery relay) or signal wire fault
Mandatory Intake Process
1

Professional Diagnosis Required

A professional diagnostic report from Xentry / DAS / Autel by a qualified technician must be provided before shipping. This confirms the N82/1 module is the root cause.

2

Pre-Authorization Required

Contact us before shipping your unit. Unauthorized orders will be canceled. Pre-authorization allows us to screen for beyond-repair symptoms before you incur shipping costs.

3

Strict Component Matching

We service both the early 0945 revision and the updated 1045 revision, as well as Bosch reference 0 199 000 011.

Troubleshooting Guide: Before You Ship
Step 1 — Pull the Diagnostic Report

Have your technician pull a full "Short Test" from the N82/1 (Battery Control Module). Look specifically for B1000 or B1828 / B1829 codes.

Tip: If the scanner cannot communicate with the N82/1 at all, check the high-amp fuses in the trunk first before removing the module.
Step 2 — Physical Inspection
Remove the right-side trunk carpeting and inspect the BCM. If the answer to any of the following is yes, provide photos in your pre-authorization request:

Does the module smell like burnt electronics?

Is the plastic casing warped or melted?

Is there visible charring on the wiring harness?
Step 3 — Safe Removal & Installation Sequence
CRITICAL: Failure to follow this sequence can instantly damage your repaired BCM or the vehicle's SAM modules.
Removal Order
1st
Disconnect the REAR (Consumer) battery
2nd
Disconnect the FRONT (Starter) battery
Installation Order
1st
Reconnect the FRONT (Starter) battery
2nd
Reconnect the REAR (Consumer) battery
Step 4 — Shipping Your Unit

Package the BCM securely in an anti-static bag and bubble wrap.

Include a printed copy of your diagnostic report and your full contact information inside the box.
Frequently Asked Questions
Q My module is physically burnt. Can it still be repaired?
Possibly. As long as the internal PCB is not carbonized through, repair may be viable. Send us clear photos of the board during pre-authorization. If the unit is beyond economic repair, we will notify you before any charges are incurred.
Q What diagnostic tool do I need to confirm the BCM is the issue?
Mercedes-Benz Xentry or DAS is the gold standard. Autel MaxiSys (with MB license) is also acceptable. Generic OBD-II scanners will not communicate with the N82/1 module — a professional-grade tool is required.
Q Do you service both the 0945 and 1045 part numbers?
Yes. We service both the early A2305400945 revision and the updated A2305401045 revision, as well as the Bosch reference unit (0 199 000 011). If you are unsure which revision you have, include a photo of the module label with your pre-authorization request.
ECU Maverick
Fort Myers, FL  ·  Engineered Electronic Solutions
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Getting Started

Submit Your Work Order

Fill out our simple work order form to get your unique work order number. We'll email you shipping instructions immediately. Ship your module to us using any carrier (USPS, FedEx, UPS). Include your work order number with your shipment.

What's Covered

Thorough Bench Testing

Every module is tested before and after repair to ensure full functionality. If your unit tests fine, shows no issues, or is deemed non-repairable, a bench fee applies. We'll contact you before charging anything beyond the base service fee.

What to Expect

Turnaround & Warranty

✓ Turnaround: 2-3 business days (complex jobs may take longer)

✓ Warranty: 6 months on repairs we perform

✓ Programming: Not required—plug and drive

About ECU Maverick — Expert ECU Repair & Programming Services

ECU Maverick specializes in component-level ECU repair and programming for European, domestic, and specialty vehicles. Based in Fort Myers, Florida, we serve independent repair shops, dealerships, and vehicle owners nationwide.

Where most shops rely on reprogram-and-replace methods, we take a different approach. Our technicians diagnose and repair individual circuits at the board level, restoring modules that others write off as failures. This expertise comes from years of reverse engineering and bench testing across thousands of control units.

Vehicles We Service

We specialize in European automotive electronics, including BMW, Mercedes-Benz, Audi, Porsche, Land Rover, Bentley, Ferrari, Lamborghini, Maserati, and Aston Martin ECU repair. We also service domestic vehicles, heavy equipment control modules, and marine electronics systems.

Why Shops and Owners Choose Us

Fast Turnaround — Most ECU repairs ship within 2–3 business days. Same-day rush service available.

Plug-and-Play Ready — Every module leaves fully programmed and coded to your vehicle. No dealer visit required.

Direct Communication — Text or call us and speak with a real technician. No ticket queues, no waiting.

6-Month Unlimited Mileage Warranty — Drive with confidence. Our warranty covers you regardless of how many miles you put on.

Our Commitment

We exist to keep your vehicle out of the dealership and back on the road—with reliable repairs, transparent pricing, and expert support from start to finish. Every job receives the same attention we'd give our own vehicle.