Add wireless Apple CarPlay and Android Auto to your Mercedes B-Class W246 (2012 to 2015) with the  Mr12Volt retrofit kit, keeping the factory screen, COMAND controller, steering wheel controls and Mercedes sound system.

The B-Class is built for everyday practicality: school runs, commuting and long family journeys. Its factory navigation and phone connection have aged, though, and an outdated map SD card is no match for live traffic on your phone. The Mr12Volt kit fits NTG 4.5 / 4.7 cars with nothing mounted on the dash, so the interior looks exactly as it left the factory. CarPlay Direct is an official UK authorised Mr12Volt stockist.

Find Your Mercedes B-Class CarPlay Kit

Your Mercedes B-Class Years Factory System Mr12Volt Kit
B-Class W246 2012 to 2015 NTG 4.5 / 4.7 NTG 4.5 / 4.7 Kit, £364.99

Earlier and later models

The previous B-Class (W245, 2005 to 2011) and the facelifted W246 from 2015 use different systems, which this kit doesn’t fit. If your B-Class is a 2015 car, check your head unit below before ordering.

Identify Your Mercedes B-Class System

NTG 4.5 / 4.7 (2012 to 2015)

Look at the head unit below your screen. You need both a button that says CLEAR in full and an SD card slot below the controller.

Not sure, or your car looks different? Send us a photo of your head unit, or your registration or VIN, and we’ll confirm the right kit.

Key Features

Bring wireless Apple CarPlay and Android Auto to your B-Class while keeping the look, controls and sound system of the original setup.
The Mr12Volt interface connects directly to the Mercedes MOST fibre optic network, providing digital audio integration alongside modern smartphone connectivity. Connect your phone wirelessly and use Apple Maps, Google Maps, Waze, Spotify and other supported apps through your B-Class’s original display.


• Wireless and wired Apple CarPlay & Android Auto
• Uses your original factory screen
• Retains the COMAND controller and steering wheel controls
• MOST fibre optic digital audio integration
• Compatible with Base, Harman Kardon and Logic 7 sound systems
• No separate coding tools needed
• Reverse and front camera inputs supported

Mr12Volt Audi MMI 3G wireless Apple CarPlay and Android Auto interface

Why choose Mr12Volt

Many cheaper Mercedes CarPlay boxes connect through the AUX input, which reduces sound quality. Mr12Volt connects through the Mercedes MOST fibre optic network and works with the factory screen, COMAND controller, steering wheel controls and sound system, so your B-Class keeps its original sound and feel.

Official UK authorised Mr12Volt stockist
Full manufacturer warranty
UK stock for fast dispatch
UK-based support
Nationwide network of approved installers, or fit it yourself in a few hours