The Volkswagen Passat B9 (since 2023) is built on the MQB Evo platform and features hybrid & plug-in hybrid drivetrains, CAN-Bus systems, LED lighting, and advanced driver assistance. Our wiring kits are tailored to this generation, ensuring trailer and carrier lighting is safe, reliable, and fully compatible with the vehicle’s electronics.

Key features of our Passat B9 wiring kits

CAN-Bus & light monitoring: Detects bulb failures and reports them correctly to the car’s systems.
7- or 13-pin versions: 7-pin for standard lighting; 13-pin for permanent live and additional circuits.
Permanent live / charging feed: Ideal for powering interior trailer lights, coolers or chargers.
PDC mute & comfort features: Parking sensors and assistance functions are supported; coding may be required in some trims.
Plug-and-play installation: Exact connectors and clear instructions make installation simple and secure.

Which variants are available for the Passat B9?

We offer kits ranging from basic lighting sets to full 13-pin versions with permanent live, LED support, and sensor integration. Use filters like year, trim, pin count and functions to find the right set for your B9.

Installation & coding

Most kits are plug-and-play. For vehicles with extended lighting or comfort features, coding may be needed after installation so that all functions (warnings, muting, lighting modes) work correctly.

How to choose the right wiring kit

Check product details for “CAN-Bus compatible”, “LED supported”, “permanent live included/optional”, “PDC mute available”, and the correct pin configuration. This ensures the kit is technically suitable for your Passat B9.

Your benefits with WELTMANN

Latest technology: optimized for LED, sensor systems, hybrid vehicles.
High quality & safety: durable, standards-compliant components.
Expert support: guidance for selection, installation & coding.
Fast shipping & reliable stock

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FAQ – Volkswagen Passat B9 Wiring Kits

Should I choose 7-pin or 13-pin?

7-pin is fine for lighting only. For accessories or permanent power supply, choose a 13-pin kit.

Do I need permanent live?

Yes—if you want to run devices such as trailer interior lighting, coolers or chargers. For basic lighting, it is optional.

Does the Passat B9 support bulb monitoring?

Yes—if your car is equipped with light monitoring, the kits support correct fault reporting.

Is coding necessary after installation?

Often yes—especially in cars with parking sensors, LED modules or advanced features. Coding ensures all functions are activated properly.

Can I install the kit myself?

With basic skills and tools, yes. For perfect integration and reliability, we recommend professional installation.

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Wiring Kits for VW Passat B9 – modern & high-performance

Vehicle-specific wiring kits for the Passat B9