Xenon Headlight LED DRL Control Module Unit A2189009303 for Mercedes A W176 CLA

Replace your failed or flickering headlight control unit with this premium OE-spec module. Engineered to restore proper lighting functions, it provides a direct plug-and-play solution for the part numbers referenced. This headlight control module replaces the ballast on Mercedes-Benz A-Class W176, CLA C117 and CLA Shooting Brake X117 cars. The label on the unit reads A2189009303, and the live compatibility list also includes the GLA-Class X156.

Features

• A2189009303
• A2189009103
• A2189009203
• A1668203589
• Type: xenon headlight control module
• Voltage: 12 V DC
• Mounting: screw-on
• The label also shows hardware stand 14/05 and software stand 12/03/00
• Direct fit on the factory connector
• Replaces the original ballast/control unit to restore headlight performance
• Ensures correct operation of daytime running lights, low/high beam, indicators or adaptive functions (as applicable)
• High-quality electronics and sealed housing provide reliable, long-lasting service
• Direct fit with factory connectors - no modifications needed

Compatibility

• Mercedes-Benz A-Class (W176) 2012-2018
• Mercedes-Benz CLA (C117) 2013-2016
• Mercedes-Benz CLA Shooting Brake (X117) 2013-2016
• Mercedes-Benz GLA-Class (X156) 2014-2016
• Mercedes A-Class (W176)
• Mercedes CLA (C117)

Installation

1. Disconnect the battery and remove the headlamp.
2. Unplug the old module and fit this one with the original screws.
3. Reconnect the plug, refit the lamp and test the lights.
4. A like-for-like module that matches A2189009303 is normally plug-and-play. Adaptive lamp systems may still need coding if a warning remains.
5. Unplug and remove the faulty module from the headlight
6. Install the new module and secure it using the original screws
7. Reconnect wiring, reinstall the headlamp and test all lighting functions

Notes

• A2189009303 is printed on the module label. A2189009103 and A2189009203 are in the existing description. A1668203589 is in the reference OE field and is not printed on this label.
• Compare the number on your original module before ordering.
• Smaller codes on the same label are production markings, not extra catalogue numbers.
• Please match the part numbers and ensure compatibility with your vehicle before ordering.
• Professional installation is recommended for optimal results.
• Coding: new like-for-like replacements that match the OE part number are often plug-and-play. Adaptive / ILS / AHL systems, or used modules, may need coding, adaptation or light initialisation - consult a specialist if warning lights remain after fitting.
• 1-year warranty covering manufacturing defects