BMW F30 F10 F25 N20 Engine Alternator Generator 12317605478 - Used Original Parts

Description

Product Title

BMW F30 F10 F25 N20 Engine Alternator Generator 12317605478 - Used Original Parts

Diagnosis and Common Symptoms

From a technical standpoint, the alternator in the N20 engine platform is a critical component linked to the vehicle's BSD (Bit Serial Data) interface. When this unit begins to fail, you will typically encounter fault codes such as 2E97 (Generator Communication) or CD93 (Bus Signal). Physical symptoms often include a "Battery Not Charging" warning on the iDrive screen, flickering interior lighting at idle, or a high-pitched whining noise from the front of the engine block. In some cases, a failing voltage regulator within the unit can cause erratic shifting or start-stop system malfunctions due to unstable voltage supply.

Introduction

As a Senior BMW Technician, I have seen many owners compromise their electrical systems with low-quality aftermarket units that fail to communicate with the DME. This is a Genuine BMW component pulled from a low-mileage donor vehicle and rigorously bench-tested to ensure stable amperage and voltage output. By choosing a Genuine Used part, you maintain the factory electrical integrity of your F30, F10, or F25 without the exorbitant cost of a brand-new unit from the dealership.

Product Details

• Brand: BMW
• Model Compatibility: F30 (3 Series), F10 (5 Series), F25 (X3) with N20 Engine
• Part Name: Alternator / Generator
• Part Number: 12317605478
• Amperage: 170A
• Condition: Genuine Used (Tested Working)
• Notes: This unit includes the original pulley and voltage regulator. It is a direct fit for 4-cylinder turbocharged N20 models.

Frequently Asked Questions

Q: What symptoms indicate failure? A: Common signs include the red battery icon on the dashboard, a "Power Supply" warning, heavy steering (if EPS is affected), or the engine failing to crank after being parked for a short time despite having a healthy battery.

Q: Does this require coding? A: The alternator hardware itself does not require software coding. However, if your battery was significantly discharged or replaced during the process, it is highly recommended to perform a Battery Registration via a scan tool to ensure the charging profile is updated.

Q: Is this original? A: Yes, this is a Genuine BMW factory part. It features the internal components and communication protocols specifically designed for the BMW BSD system, which aftermarket alternatives often lack.

Why Choose Us?

• Verified functionality through rigorous load testing
• Actual photos and videos of the unit are provided upon request
• 30-day exchange warranty for peace of mind
• Technical support from experienced BMW specialists to ensure part compatibility

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

1. WhatsApp us to confirm compatibility with your specific VIN.
2. Send your chassis number or a clear photo of your old unit label.
3. Confirm order details and stock availability.
4. Receive actual product photos and diagnostic test confirmation.
5. Make payment via bank transfer.
6. Item is shipped immediately with tracking details provided.

Contact Us

William – https://wa.me/60102992988 Lok – https://wa.me/60177720143

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