For the versatile Mercedes-B-Class, we offer premium wiring kits — ideal for trailers, rear carriers or bike racks. Available in 7-pole or 13-pole, vehicle-specific or universal — our options combine function, safety and comfort.

Key features of our B-Class wiring kits

Vehicle-specific connectors & routing: Components aligned with the B-Class electrical system for a clean, fuss-free installation.
Compatibility with onboard electronics: Support for lamp-out monitoring and light fault feedback — depending on trim and model year.
Durable & weather-proof materials: Corrosion-protected contacts, high-quality insulation, and robust components for reliable operation.

7-pole or 13-pole – which version fits?

7-pole: Covers standard lighting functions like indicators, brake, tail and rear lights.
13-pole: Adds features like reverse light, permanent power or charging line — especially useful with accessories or towing trailer loads.

Installation & technical notes

Installation makes use of vehicle-specific plugs and mounting points designed for the B-Class. Depending on trim and year, coding or activation may be needed so that comfort and safety features work properly. Please check product description for details of your selected wiring kit.

Select your wiring kit now

Browse our range of wiring kits for the Mercedes-B-Class. More Mercedes-Benz wiring kits are listed under Mercedes-Benz wiring kits.

Frequently Asked Questions (FAQ)

Does the A-Class wiring kit require coding?
It depends on the year, trim and electrical configuration. Some vehicles require coding so monitoring systems and lamp-out warnings work correctly.

Is a 7-pole wiring kit sufficient if I only need lighting?
Yes — for basic lighting like indicators, brake and tail lights a 7-pole kit is usually enough. For rear lights, permanent power or trailer usage, a 13-pole version is recommended.

Can I install the wiring kit myself?
With proper instructions and some technical knowledge yes. For coding or more complex electrical systems, we recommend a professional workshop.

Are these wiring kits compatible with all A-Class versions?
Please check the product details for year, trim and equipment compatibility. Our support team is happy to assist if needed.

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Wiring Kits for Mercedes-B-Class