Specifications & Compatibility
| 🏷️ Brand | TecUpdater |
| 📝 Warranty | 1 Year |
| ♻️ Return Policy | Exchange Only |
| 📦 UOM (Unit of Measure) | 1 Unit |
| 🚚 Shipping | Free |
| 🔧 Product Type | Automatic Headlight Switch |
| 🆔 Part Numbers | 1C0941531, 3BD941531, 3BD941531A |
| ⚡ Compatibility | Volkswagen Polo, Vento, Ameo |
| 🔌 Pin Support | Works with 14-Pin & 17-Pin variations |
| 🌐 Sensor Type | Option 1 – Built-in internal sensor for auto headlight function Option 2 – External Sensor with wire that can be placed near the windshield. |
| 🪛 Installation | Plug-and-Play, no modifications required |
| 💡 Functions | Headlights + Fog lights (Front and Rear) with automatic control, Coming Home and Leaving Home, Settings Configuration |
| 🏭 Quality | OEM-grade, manufactured by leading ODMs |
Automatic Headlight Switch for VW Polo, Vento, Ameo | 1C0941531, 3BD941531, 3BD941531A | Internal & External Sensors | Plug & Play
Enhance your Volkswagen Polo, Vento, or Ameo with the 1C0941531 / 3BD941531 / 3BD941531A Automatic Headlight Switch, engineered for effortless headlight control and enhanced road safety. Designed as a direct OEM fit, this high-quality switch provides factory-level automatic headlight functionality, giving you better visibility in low-light conditions, tunnels, early morning, and dusk.
Key Features & Benefits
OEM-Grade Quality – Manufactured to the highest standards by leading ODMs for long-lasting performance and reliability.
Compatible with 14-Pin & 17-Pin Variants – Works seamlessly with multiple Volkswagen models, making it a versatile upgrade.
Internal & External Sensor Options – Choose the built-in sensor version for true automatic detection or external sensor variant if you prefer sensor placement flexibility.
Plug & Play Installation – 100% no wiring, no modifications, simply replace the existing switch. Both internal and external sensor versions support full configuration features.
Supports Advanced Functions – Including Coming Home / Leaving Home light functions, fog light control, and full headlight operation.
Configuration Switch – Lets you easily set headlight behavior according to your driving needs.
Enhanced Safety & Comfort – Smooth, automatic operation improves visibility while reducing driver distraction.
Installation Process
Turn the headlight switch to “0” (OFF) position, push it and rotate clockwise to loosen it.
Remove the existing switch carefully from the dashboard and remove the connector from the back gently.
Connect and Insert the new Automatic Headlight Switch (internal or external sensor variant) into the original slot.
Reconnect the wiring harness (no modifications required).
Test functionality: Switch should support automatic headlight operation, fog lights, and Coming Home / Leaving Home functions.
Adjust settings via configuration switch if required to customize light behavior.
💡 Tip: Always ensure the ignition is OFF while installing to prevent electrical issues.
Compatible Volkswagen Models
Volkswagen Polo
Volkswagen Vento
Volkswagen Ameo
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Many Volkswagen owners want automatic headlight control without extra wiring or complicated setups. This 1C0941531 / 3BD941531 / 3BD941531A switch offers a factory-like auto headlight experience, maintaining durability, safety, and ease of use.
Upgrade your Volkswagen today and enjoy convenience, enhanced visibility, and peace of mind on every drive.
Order & Support
📦 Available across India.
📲 WhatsApp / Call: https://wa.me/919625218968
Ketan –
Installed two for my 2014 Vento and VW Polo 2015. It is working as good as mentioned.
Aakash –
Works perfect for my 2018 Ameo Highline plus. Auto function is set and forget. For lights also work in auto mode. Overall great product and great experience.