HID Xenon Headlight Ballast Control Unit Module for Audi VW Skoda 8K0941597B OEM

Xenon headlight ballast / LED control unit This control unit regulates the current supplied to your HID or LED headlight. A proper ballast ensures stable light output and protects the lamp from damage. This HID xenon headlight ballast replaces control unit 8K0941597B on the Audi A3, Q5 and Q7, and on the Volkswagen Passat and Passat CC in the live fitment. The title also names Skoda.

Features

• 8K0941597B
• 8K0941597C
• 8K0941597E
• 1036060024
• 1036060051
• 1036060061
• W003T18471
• W003T20171
• Quantity: 1 ballast
• Lighting: HID xenon, 12 V DC
• Lamp types printed on the label: D3S, D3R, D4S and D4R, 35 W
• Mounting: screw-on
• Plug-and-play on a like-for-like replacement. No coding is usually required
• Direct OE replacement for the specified part number
• Sealed electronics for durability
• Plug-and-play installation - no coding required

Compatibility

• Audi A3 (8PA) 2010-2020
• Audi A3 (8V1) 2010-2020
• Audi A3 (8VA) 2010-2020
• Audi A3 (8VF) 2010-2020
• Audi A3 (8VK) 2010-2020
• Audi Q5 (8RB) 2008-2017
• Audi Q7 (4LB) 2009-2015
• Volkswagen Passat (2005-2014)
• Volkswagen Passat CC (2009-2012)
• Skoda

Installation

1. Disconnect the battery.
2. Remove the headlight and the old ballast.
3. Fit this unit, reconnect the plug and refit the lamp.
4. Reconnect the battery and check the light output.
5. Disconnect the vehicle battery.
6. Install the new unit and reconnect the wiring.
7. Refit the headlight and test the light output.

Notes

• Compare 8K0941597B with the number on your original ballast before ordering.
• The label also prints 4UM154367/00. That supplier marking is not listed as the catalogue number.
• No Skoda model is in the live fitment. The title names Skoda, so match the part number rather than the badge alone.
• Adaptive or AFS headlights, or a used module, may still need coding or fault clearing if a warning remains.
• Professional fitting is recommended because of the high voltage.
• Water ingress and damage from incorrect wiring are not covered by the warranty.
• Coding: like-for-like new ballast/driver replacements that match the OE part number are typically plug-and-play with no coding required. Always match the number on your original module. Adaptive/AFS headlight systems or used modules may still need coding, initialisation or fault clearing with diagnostic tools if warnings remain.
• Due to high voltage, professional installation is recommended.
• Includes a 1-year warranty against manufacturing defects; water ingress and damage from incorrect wiring are not covered.