AFS Fault VW – Causes, Repair Cost & Insurance Coverage

AFS Fault VW – Causes, Repair Cost & Insurance Coverage

Adaptive Frontlighting System (AFS), also known as dynamic cornering lights, is designed to significantly improve nighttime visibility in vehicles equipped with bi-xenon headlights. According to Volkswagen, the system can increase effective illumination by up to 90 percent. At speeds as low as around 10 km/h (6 mph), the bi-xenon headlights swivel up to 15° (7.5° to each side) following the steering angle. This allows the driver to see further into corners before actually entering them. Combined with static cornering lights, the system improves safety and driving comfort at night. The integrated turning lights operate up to approximately 40 km/h (25 mph) and activate during low-speed maneuvers depending on steering direction, or both sides when reverse gear is engaged. These functions are supported by H7 bulbs. Both systems work together, and if one component fails, the entire AFS system may stop functioning completely.

Shortly after installing the High Beam Assist system, I was greeted with a warning message on the dashboard display: "Adaptive Frontlighting System (AFS) is not working. Please see owner’s manual." Unfortunately, the owner’s manual does not provide a clear explanation of the exact cause. Luckily, with access to VCDS diagnostic software, I was able to check the fault codes myself. While the message sounds serious, the actual issue turned out to be very simple – a burned-out cornering light bulb in the right headlamp unit. Replacing the bulb solved the problem immediately. In my opinion, the error message should clearly indicate which bulb or component has failed, but for some reason the system only displays a generic warning without detailed information.

Below you’ll find more technical details and diagnostic steps.

OVERVIEW

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requirements
Active AFS system warning message
time
5–10 minutes
tools
Plastic trim removal tool (or similar non-metal pry tool)
parts required
H7 bulb x1
removed parts
Burned-out H7 bulb x1

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MFA WARNING MESSAGE

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The AFS warning displayed in the instrument cluster is quite generic – it does not indicate that a bulb has failed, nor which side is affected.

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VCDS DIAGNOSTIC FAULT

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To identify the issue properly, enter the control module selection menu in VCDS.

Select module 55 – Headlight Range Control (Xenon Range).

Open “02 – Fault Codes”.

Here the issue becomes clear – right-side static cornering light bulb failure.

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BULB REPLACEMENT

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The static cornering light bulb is located inside the main headlamp housing, positioned at roughly a 45° angle relative to the low beam bulb.

On most models, simply open the hood and locate the removable rear cover on the headlamp assembly.

In this case, the cover is rubber. There is enough space to work comfortably. Twist the bulb holder until the metal retaining clips release.

Replace it with a new H7 bulb and reinstall it into the housing.

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AFS REPAIR COST – HOW MUCH DOES IT COST?

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The cost of fixing an AFS fault can vary significantly depending on the actual cause of the problem. In many cases, like the one described above, the issue may simply be a burned-out H7 bulb, which typically costs between $10–$25 (or €10–€20). If you replace it yourself, the total repair cost is minimal.

However, if the problem is related to the headlight range control module, AFS control unit, or wiring, the repair cost can increase substantially. A replacement headlight control module may cost anywhere between $150–$500, while a complete bi-xenon headlamp assembly can exceed $800–$1,200, depending on the model.

Labor costs at a dealership or independent workshop may range from $80–$150 per hour. For that reason, it is always recommended to perform a proper diagnostic scan (for example using VCDS) before replacing expensive components.

If your vehicle is covered by comprehensive insurance, some electrical or headlight-related failures may be partially covered. It is worth checking your insurance policy before proceeding with major repairs.

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FAQ – AFS FAULT IN VOLKSWAGEN

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Can you drive with AFS fault?

Yes, in most cases you can continue driving with an AFS fault. However, the adaptive cornering function will be disabled, meaning your headlights will no longer swivel into turns. Night visibility may be reduced, especially on dark or winding roads. It is recommended to diagnose the issue as soon as possible.

Is it safe to ignore the AFS warning?

Ignoring the AFS warning is generally not dangerous in the short term, but it may indicate an electrical issue within the headlight system. If the problem is caused by a failed bulb, it is inexpensive to fix. If the fault is related to the headlight control module or wiring, delaying repair could lead to higher repair costs.

How much does it cost to fix AFS fault in VW?

Repair cost depends on the root cause. A simple H7 bulb replacement may cost under $25. However, replacing a headlight range control module or AFS control unit can cost several hundred dollars, especially if professional labor is required.

Does insurance cover AFS system repair?

Comprehensive car insurance may cover headlight damage caused by accidents or external impact. However, normal wear and tear, such as a burned-out bulb, is usually not covered. Always review your insurance policy before filing a claim.

What causes AFS fault in Volkswagen?

Common causes include a burned-out cornering light bulb, faulty headlight level sensor, damaged wiring, or a malfunctioning headlight control module. A diagnostic scan with VCDS or similar OBD2 software is the most reliable way to identify the exact issue.

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