Contents
- Why Activate High Beam Assist on BMW F30/F32
- Prerequisites Before Activating BMW High Beam Assist
- 1. Required Hardware
- 2. Required Software
- How to Activate BMW High Beam Assist on F30/F32 (Step-by-Step Guide)
- Step 1: Modify the Vehicle Order (FA)
- Step 2: Code FEM_BODY and KAFAS2/FLA Modules
- Step 3: Adjust CAFD Parameters
- Step 4: Adjust Speed Thresholds
- Step 5: Verify and Test
BMW’s High Beam Assist (HBA) is an advanced lighting feature that enhances night driving safety and convenience. Designed to work with vehicles equipped with adaptive headlights, HBA automatically adjusts your high beams to avoid dazzling other drivers, while still illuminating the road ahead. In this guide, AutoExplain will show you how to activate BMW High Beam Assist on models like the F30 and F32, providing step-by-step instructions to enable this intelligent lighting system safely and efficiently.

Why Activate High Beam Assist on BMW F30/F32
BMW’s High Beam Assist (HBA) is part of the vehicle’s advanced Adaptive Lighting system, designed to improve night driving safety and comfort. The feature automatically adjusts the high beams depending on traffic conditions, ensuring optimal visibility without dazzling other drivers.
High Beam Assist works by detecting oncoming vehicles and vehicles ahead, then temporarily dimming or redirecting the high beams. This is made possible through independently controlled light segments, sometimes referred to as Anti-Dazzle or Adaptive Beam technology. By activating HBA, drivers can:
- Enhance Night Visibility: The system maintains the maximum high-beam illumination whenever it’s safe, allowing you to see the road clearly.
- Reduce Eye Strain: Automatic dimming prevents frequent manual switching between high and low beams, minimizing driver fatigue during night trips.
- Increase Safety for Others: The system ensures that other drivers are not blinded by high beams, reducing the risk of accidents.
- Fully Utilize Adaptive Headlights: Many BMW F30/F32 models are equipped with adaptive or LED headlights. Activating HBA ensures you leverage the full capabilities of these advanced lighting systems.
Overall, enabling High Beam Assist makes driving at night safer, more convenient, and technologically optimized. It is an essential feature for any BMW owner who wants to fully utilize their car’s adaptive lighting capabilities.

Prerequisites Before Activating BMW High Beam Assist
Before you can successfully activate High Beam Assist (HBA) on BMW F30/F32, certain hardware and software requirements must be met to ensure a safe and effective procedure.
1. Required Hardware
- Adaptive Headlights: Your vehicle must be equipped with LED Adaptive headlights or Bi-Xenon AHL (Adaptive Headlight).
- Front Camera: A KAFAS2 or FLA (Frontal Light Assistant) camera mounted on the windshield is necessary for detecting oncoming traffic and vehicles ahead.
- Connection Cable: Use an ENET cable or BMW ICOM to connect your laptop to the vehicle’s OBD-II port.
2. Required Software
- E-Sys Software: Version 3.36 or higher with a valid EST token for coding.
- PSdZData: Full database version compatible with your BMW’s production year (e.g., 4.43.40 for F30 2018).
Having the correct hardware and software ensures that the coding process runs smoothly and minimizes the risk of errors while activating BMW High Beam Assist.
For professional guidance or support with activating BMW High Beam Assist, contact AutoExplain via WhatsApp: +1 (936) 289 6695 for free expert assistance.

How to Activate BMW High Beam Assist on F30/F32 (Step-by-Step Guide)
If your BMW F30/F32 is equipped with high-beam adaptive headlights, you can activate High Beam Assist (HBA) using E-Sys coding. Follow these steps carefully to enable this advanced lighting feature.
Step 1: Modify the Vehicle Order (FA)
- Connect your laptop to the BMW via ENET cable or ICOM and launch E-Sys.
- Read the current FA (Vehicle Order) from the ECU: Expert Mode → Read FA → Save FA.
- Edit the FA using the FA Editor:
- Remove code 5AP (Decoding Anti-Glare High-Beam Assistant) from the SALAPA section.
- If your car has LED Adaptive headlights, add code 8S4 (Variable Light Distribution) if it is not already present.
- Save the updated FA and ensure it is uploaded back to the vehicle.
This step ensures that the vehicle’s configuration allows HBA coding and recognizes the adaptive lighting hardware.

Step 2: Code FEM_BODY and KAFAS2/FLA Modules
Code FEM_BODY:
- Navigate to FEM_BODY → CAFD → Code Default.
- Confirm that FEM recognizes the updated FA (5AP should be removed, 8S4 added if applicable).
Code KAFAS2 (or FLA if installed):
- Access KAFAS2 → CAFD → Code Default.
- For vehicles with FLA (Frontal Light Assistant), code the FLA module instead of KAFAS2.
This step ensures the vehicle modules are synced with the new FA and HBA feature can be activated.
Step 3: Adjust CAFD Parameters
In FEM_BODY (FDL Coding):
| Parameter | Value | Explanation |
|---|---|---|
| C_HBA_ENA | aktiv | Activates HBA system |
| C_HBA_GRHB_ENA | Highway_Standby_AFS | Enables highway standby mode for adaptive headlights |
| C_HBA_ADAPT_SHUT_ENA | aktiv | Allows adaptive shut-off |
| LUT_FLC_FORWARDLIGHTING_Y | 9C, 9C, 9C | Activates Variable Light Distribution for HBA |
In KAFAS2 (FDL Coding):
| Parameter | Value |
|---|---|
| C_FLA_CC_MESSAGE_3 | No_Cc_Message |
| C_FLA_COUNTRY_WITH_MULTIPLE_REFLECTORS | aktiv |
| C_FLA_BS_ENTER_THRESH & C_FLA_BS_EXIT_THRESH | Rest Of World |
These parameters enable HBA functionality and configure the adaptive beam behavior correctly.
Step 4: Adjust Speed Thresholds
Activation Speed (HBA ON):
- Parameter: C_HBA_ENA_V_HI
- Example HEX value: 8C → 140 km/h
Deactivation Speed (HBA OFF):
- Parameter: C_HBA_ENA_V_LO
- Example HEX value: 5A → 90 km/h
Ensure that Variable Light Distribution is enabled to fully integrate the high beam assistant.
Step 5: Verify and Test
- Save all changes and code the modules.
- Restart the vehicle.
- Test HBA functionality:
- Drive at night with high beams on.
- Observe that the system automatically adjusts the high beams to avoid dazzling oncoming vehicles.
Pro Tips
- Always backup your FA and CAFD files before making changes.
- Confirm that your E-Sys version and PSdZData are compatible with your vehicle’s model year.
- Adjust speed thresholds according to your driving preference and local regulations.
Activating BMW High Beam Assist on the F30/F32 is a highly valuable upgrade that enhances nighttime visibility, improves driving safety, and unlocks the full potential of your adaptive headlight system. With the right hardware, proper software setup, and careful coding, High Beam Assist becomes fully integrated—allowing your BMW to automatically manage high beams, avoid dazzling other drivers, and provide a more comfortable and confident driving experience.
If you need professional assistance, troubleshooting support, or guidance on choosing the right diagnostic software and tools, feel free to contact AutoExplain via WhatsApp: +1 (936) 289 6695 for free expert help.
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