The Volkswagen Passat B8 (Typ 3G / 3G5) includes advanced electronics such as CAN-Bus systems, lighting monitoring, and comfort features. Our vehicle-specific wiring kits are engineered to fit those systems. That ensures trailer and carrier lighting works reliably, safely, and in harmony with the car’s control units.

Key features of our Passat B8 wiring kits

CAN-Bus compatibility: Ensured communication with onboard control; lamp faults are detected and properly reported.
Permanent live / charging feed: Many kits include a connection for constant power—to support interior lighting, charger boxes, or powered accessories.
7- or 13-pin variants: 7-pin for basic lighting; 13-pin for extended features and additional power circuits.
PDC muting & rear fog light cut-off: Comfort features supported if your vehicle has parking sensors or rear fog-lights.
Plug-and-play installation: Compatible connectors, clean cable routing, clear instructions optimized for both private and commercial use.

Which variants are available?

We offer a range of wiring kits for the Passat B8—from basic light-only versions to full-featured variants with permanent live, LED support, and sensor integration. Use filters like model year, trim level, pin count and special features to find your match.

Installation & coding details

Many kits install easily with minimal changes. In vehicles with LED modules, comfort packs or sensor systems, coding may be required after installation so that warning messages, light modes, or sensor deactivations function correctly.

How to choose the right wiring kit

Look for product specs such as “CAN-Bus compatible”, “permanent live included/optional”, “LED supported”, “PDC mute available”, and correct pin configuration. That helps ensure the kit you choose will work seamlessly with your Passat B8.

Your advantages with WELTMANN

Top-tier quality: components designed to meet modern demands.
Expert consultation: guidance on selection, installation & coding.
Reliable stock & prompt dispatch

FAQ – Volkswagen Passat B8 Wiring Kits

Should I pick 7-pin or 13-pin?

If you only need basic lighting functions, a 7-pin wiring kit is usually enough. For powered accessories, permanent live connections or increased functionality, a 13-pin set will serve you better.

Do I need a permanent live / charging feed?

Yes, if you plan to power accessories like interior lights, charger boxes, or permanently powered load units. For basic lighting only, this is typically optional.

Does my Passat B8 support light failure monitoring / Check-Control?

If your vehicle is equipped with lamp-failure or light monitoring systems, yes. Our kits are built to detect lamp faults and display them properly.

Will coding be required after installation?

Often yes—especially in cars with LED lighting, sensors or advanced comfort/launched features. Coding ensures all functionalities are recognized correctly and warnings are avoided.

Can I install the wiring kit myself?

With basic technical skills and appropriate tools, yes. For neat installation, weather-protected connections and full compatibility, professional installation is recommended.

Filter products

Wiring Kits for VW Passat B8 – modern & precisely integrated

Electrical solutions built for your Passat B8