Tapping into your Sprinter 12v power
Under the driver seat you’ll notice you have many of your fuses there in large fuse box. If you remove your seat you’ll see all the relays and wires that tap into the power coming from your battery. With what MB calls X145/1. Found towards the rear of the seat base you’ll see the three cable terminal that connects to core power sources.
When installing electrical aftermarket equipment with an AMP draw of more than 25A it is necessary to use the optional aux battery 12V/100Ah (CODE E28)
Ground Terminals
2 ground points under driver seat (vans and chassis-cab)
Ground point under floor on frame (van)
The M6 connections are tightened to a torque of 6Nm [4.4lbs-ft]
NVC3 Electrical Driver’s Seat Box
Tapping into the Auxiliary (Aux) Battery Connection
If an aux battery (code E28) is installed an electrical connection is located inside the driver seat pedestal. Please remove cover (1).
Use position (2) for your electrical connection and install an appropriate fuse as close as possible, ensuring cover (1) is seated properly when closing.
Other Cables in Driver’s Seat Box
CODE E58 trailer tow prewire
Prewire for aftermarket brake control module
