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8K0 941 597B HID Headlight Ballast Fits A3 A4 A5 Q5 Q7 2008-2017
| MOQ: | 1 |
| Price: | $8.40-10.20 |
| Standard Packaging: | Neutral packaging |
| Delivery Period: | 10 |
| Payment Method: | L/C,D/A,T/T,D/P |
| Supply Capacity: | 100000 |
8K0 941 597B
,Q5 HID Headlight Ballast
,A4 Xenon Ballast
1. Product Details
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Product Name: Headlight Control Unit / Xenon Headlight Ballast / D3S/D4S Igniter Control Module
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OEM Number: 8K0 941 597B (cross-references: 8K0941597B, 8K0 941 597)
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Product Highlight: Genuine-spec headlight control unit that powers and regulates Xenon/HID headlights – restores full brightness and reliable operation of the vehicle's lighting system. A direct replacement for the original factory component, this unit ensures proper ignition and stable performance of D3S and D4S gas discharge lamps.
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Dimensions: 109 x 109 x 30 mm; weight approx. 0.19–0.23 kg.
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OEM Standard: Meets original equipment specifications for fit, material, and performance.
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Vehicle Adaptability: Compatible with Audi and VAG Group models equipped with Xenon lighting (see Section 4).
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Make: European Premium Brand
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Model Years: 2008–2024 (verify VIN for exact compatibility).
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Applicable Models: Audi A4 (B8/8K), A5 (8T), A6 (C7/4G), Q5 (8R), and other VAG models with Xenon lights.
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Quality: OEM-grade; available in Genuine OE and premium aftermarket variants (Metzger, Magneti Marelli, Topran, LORO) with manufacturer warranty.
2. Product Parameters
| Parameter | Specification |
|---|---|
| Component | Headlight control unit / ballast |
| Lamp Type | D3S, D3R, D4S, D4R (Xenon/HID) |
| Voltage | 12V |
| Power | 35W |
| Dimensions | 109 x 109 x 30 mm |
| Weight | Approx. 0.19–0.23 kg |
| Installation | For left or right side, with seal included |
| ECU Update | Not required |
| Condition | New, OEM replacement |
3. Product Features
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Xenon Headlight Control: Powers and regulates gas discharge headlights, ensuring consistent brightness and reliable starting of D3S/D4S bulbs.
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Dual-Side Fitment: Fits both left and right headlight assemblies – one part number covers both sides.
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Direct Plug-and-Play: No programming or ECU update required – simply replace the old unit and plug in the 7-pin connector.
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Complete Assembly: Includes the required seal/gasket for proper installation.
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Durable Construction: Housing made of aluminum with 3 mounting holes for secure fitment.
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Genuine Quality: OEM-grade part ensures reliable lighting system performance.
4. Vehicle Fitment
Fits Audi and VAG Group models equipped with Xenon headlights:
| Model | Years |
|---|---|
| Audi A4 (B8/8K) | 2008–2016 |
| Audi A5 (8T) | 2008–2016 |
| Audi A6 (C7/4G) | 2011–2018 |
| Audi Q5 (8R) | 2009–2017 |
| Audi A4/A5 (B9) | 2017–2024 |
Compatible with various VAG Group models including Seat, Skoda, Volkswagen, and Porsche with Xenon lighting. Always verify your vehicle's VIN and headlight type before ordering.
5. Company Profile
5. FAQ
Q1: What are signs my headlight control unit needs replacement?
Symptoms include one or both Xenon headlights not turning on, intermittent flickering, dim output, or a failed ignition even after replacing the bulb. The unit may also produce a buzzing sound.
Q2: Does 8K0 941 597B fit both left and right headlights?
Yes – this unit is designed to fit both left and right sides. Check your vehicle's headlight type (D3S/D4S) before ordering.
Q3: Is programming required after installation?
No – the unit is plug-and-play. No ECU update or reprogramming is required. However, professional installation is recommended to ensure proper handling of the headlight unit and electrical connections.
