The Volkswagen Tiguan’s High Beam Assist (FLA) feature automatically switches between high and low beams, enhancing visibility and driving safety. This guide provides a comprehensive walkthrough for enabling and configuring FLA on a Tiguan using VCDS (Vag-Com Diagnostic System).
Activating High Beam Assist with VCDS
This modification requires access to VCDS and a basic understanding of its operation. Incorrectly modifying vehicle settings can lead to unexpected behavior. Proceed with caution and consult your vehicle’s documentation.
Module 09 – Central Electrics
First, connect VCDS to your Tiguan and access Module 09 – Central Electrics (5Q0-937-085-CJ). Within this module, locate and adjust the following settings:
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ENG141650-MAS13782-Fernlicht_assistent-Will Beam assistant: responsivity adjustable via BAP: Set to “Present”. This enables the core functionality of the high beam assist system.
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ENG141650-ENG141973-Fernlicht_assistent-Erweiterte_Fernlichtsteuerung Basis -> Basis: Set to “FLA”. This option designates the basic operational mode for the high beam assist, specifically for vehicles without dynamic or LED headlights. Other options like “Fernlicht ueber AFS” or “BCM-Fernlicht” may apply to different Tiguan models equipped with advanced lighting systems.
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ENG141650-ENG116639-Fernlicht_assistent-Fernlichtassistent Reset: Choose between “active” and “not active”. Selecting “active” resets the auto high beam feature with each ignition cycle, while “not active” retains the previous setting.
To enable the High Beam Assist menu in the infotainment system, modify these settings:
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ENG141650-ENG116637-Fernlicht_assistent-Menuesteuerung Fernlichtassistent: Set to “present”.
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ENG141650-ENG116641-Fernlicht_assistent-Menuesteuerung Fernlichtassistent Werkseinstellung: Set to “present”.
After adjusting these settings, the High Beam Assist option should appear under Car -> Settings -> Lights -> Light assist in your infotainment system. A reboot of the head unit may be required.
Module A5 – Front Sensor Driver Assist
Next, access Module A5 – Front Sensor Driver Assist (2Q0-980-653). In the long coding section, modify Byte 15 to “20”. This specific byte enables the necessary communication between the front sensor and the high beam assist system. Note that this byte may differ from other Volkswagen models. Always consult the Long Coding Helper within VCDS for accurate byte identification.
Verification
After implementing these changes, test the High Beam Assist feature on a dark road. The high beam indicator light (a headlamp symbol with an “A”) should illuminate blue when high beams are activated automatically. It should revert to white when the system dips the headlights in response to oncoming traffic or brighter ambient lighting.
This VCDS modification allows Tiguan owners to enable the High Beam Assist feature, improving visibility and driving safety. Remember to always proceed cautiously when modifying vehicle settings using diagnostic tools.
