Xenon Headlight Ballast Control Unit Module 8K0941597E for Audi A1 A3 A4 A5 A6

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 xenon headlight ballast control unit replaces module 8K0941597E on the Audi A1, A3, A4, A5 and A6 named in the title. The product photo also lists further Audi and Volkswagen fitment for the same module.

Features

• 8K0941597E
• Metal case with a red sealing ring and two plugs
• Lamp types printed on the unit: D3S, D3R, D4S and D4R
• 35W marking on the label
• The label is also marked 01210401 beside the part number
• The product graphic states short-circuit, open-circuit, polarity, overload and load protection
• Like-for-like replacement matching this part number is described as plug-and-play, with no coding required
• Direct OE replacement for the specified part number
• Sealed electronics for durability
• Plug-and-play installation - no coding required

Compatibility

• Audi A1 2010-2015
• Audi A3 2009-2015
• Audi A4 2010-2015
• Audi A5 2008-2015
• Audi RS5 2008-2015
• Audi A6 2009-2015
• Audi RS6 2009-2015
• Audi A7 2010-2014
• Audi RS7 2010-2014
• Audi A8L 2010-2014
• Audi Q3 2012-2015
• Audi Q5 2009-2015
• Audi Q7 2010-2015
• Volkswagen CC 2012-2015
• Volkswagen Eos 2012-2015
• Volkswagen Golf 2014-2015
• Volkswagen Golf GTI 2014-2015
• Volkswagen Tiguan 2012-2015
• Volkswagen Touareg 2011-2015
• Volkswagen Passat 2013-2015
• Volkswagen Polo 2010-2013
• Audi A1 / A3 / A4 / A5 / A6 models using OE 8K0941597E - verify the number on your original ballast

Installation

1. Disconnect the vehicle battery.
2. Remove the headlight assembly and the old ballast.
3. Fit the new unit and reconnect the wiring.
4. Refit the headlight and test the light output.

Notes

• Compare 8K0941597E with the number on your original module before ordering.
• Adaptive or used modules may still need coding or fault clearing if a warning remains.
• High voltage is present. Professional installation is recommended.
• Includes a 1 year warranty against manufacturing defects. Water ingress and damage from incorrect wiring are not covered.
• 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.