On Friday, August 21, 2015 at 6:04:08 AM UTC-7, wrote:
Why in the world did you not just have the factory hitch installed?
You buy a Mercedes with a factory solution and you go to U-Haul!

You know, there is more to a to a tow hitch on a Mercedes than connecting to a trailer. It uses the light system to tell the computers that there is a trailer attached. That modifies the braking system and much more.

Eventually I hope to have this problem with a GLK250.
Do Mercedes USA dealers have the proper trailer light package for their vehicles? Not the 4-pin system that is illegal in most of the World...
Jim