This Mercedes hides its battery and fuse box under the floor board of the passenger seat. Was going nuts trying to find the battery to jump start it! : r/mildlyinteresting
W639 Viano - Plastic box under drivers seat | Interior | MBClub UK - Bringing together Mercedes Enthusiasts
How to replace the car battery on a Mercedes-Benz Vito - Car Ownership - AutoTrader
How To Solve Your Mercedes Auxiliary Battery Malfunction SG
Why Mercedes' Auxiliary battery package isn't a good starting point for a conversion - Sprinter Adventure Van