Just as 4WD High locks the front and rear axles together, the rear diff lock connects the rear end side-to-side. That means that if one side loses traction, the opposite side keeps spinning, powering ...

Uh oh. If you're the owner of a 2007-2009 Mercedes-Benz E350 4Matic Wagon, prepare for a recall notice from Mercedes. While it won't be coming until later in the summer, know that if your car was ...