Volkswagen Golf Mk7 alternator 04C 903 023 K - Used original Parts

Description

Product Title

Volkswagen Golf Mk7 alternator 04C 903 023 K - Used original Parts

Diagnosis and Common Symptoms

Failure of the 04C 903 023 K alternator in the Volkswagen Golf Mk7 platform typically manifests through a red battery icon on the instrument cluster or a "Check Charging System" warning. Technicians often observe fault codes such as P0562 (System Voltage Low) or P0622 (Generator Field Control Circuit) during a diagnostic scan. Physical symptoms include dimming headlights during idling, a sluggish engine crank, or an audible whining noise from the accessory belt area indicating bearing wear. If your vehicle requires frequent jump-starts despite having a healthy battery, the internal voltage regulator or rectifier diodes in the alternator have likely failed.

Introduction

Securing a Genuine used alternator is the most reliable method to restore your vehicle's electrical integrity without the high cost of a brand-new unit. This specific 140A component has been salvaged from low-mileage donor vehicles and subjected to a comprehensive bench test to verify consistent voltage output. Unlike low-quality aftermarket replicas, this Genuine part ensures seamless communication with the Golf Mk7's sophisticated LIN-bus energy management system. Our technicians have inspected the brushes, slip rings, and pulley to ensure this part is ready for immediate bolt-on installation.

Product Details

• Brand: Volkswagen
• Model Compatibility: Golf Mk7 (typically 1.2 / 1.4 TSI engines)
• Part Name: Alternator / Generator
• Part Number: 04C 903 023 K
• Amperage: 140A
• Condition: Genuine Used (Tested Working)
• Notes: Pulley and internal regulator included. Surface may show minor cosmetic oxidation consistent with normal use.

Frequently Asked Questions

Q: What symptoms indicate failure? A: The most common signs are a dashboard battery warning light, flickering interior electronics, and a battery that refuses to hold a charge despite being relatively new.

Q: Does this require coding? A: The alternator itself does not require software coding. However, if your battery was completely discharged during the failure, you may need to reset the Battery Management System (BMS) using a diagnostic tool to ensure the new charging profile is recognized.

Q: Is this original? A: Yes, this is a Genuine Volkswagen factory component. It is built to higher tolerances and provides better heat dissipation than non-genuine alternatives.

Why Choose Us?

• Verified functionality through load-testing at peak operating temperatures.
• Actual photos/videos provided of the specific unit to ensure transparency.
• 30-day exchange warranty provided on all electrical components.
• Technical benefit: Using a Genuine unit prevents "ghost" fault codes and interference with the vehicle’s Start-Stop system.

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