Hey Emmerich,

My dad bought a new GLK 250 around this time last year. It does have a factory two hitch option but its a small 1.5" receiver. I would have preferred bigger. Its towing capacity is 3500 lbs limited by the suspension. Torque is not a problem with the diesel engine.

We have towed a small UHaul Trailer to Sonoma Raceway from house in the bay area and it was fine. I also moved the race car and trailer weighing about 4200 lbs across the paddock at Thunderhill. (Needed to move pit stalls and the real tow vehicle was away getting parts) It worked but the suspension was near to bottomed out. Steering was exceptionally light as the tongue was way overloaded. Would not recommend but we got a few laughs as we trundled across the paddock.As as mentioned by previous posts the short wheelbase isn't as stable at speed as a longer truck. So on/off ramps need to be negotiated with caution if you are nearing towing capacity. Braking while towing was surprisingly good. Very few times was I acutely aware I was towing save for the couple of times I needed to really stand to avoid rear ending lane divers trying to make a late freeway exit.

Hope this helps,

Gregory

EDIT: Ceked the Splelling

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Current
2006 E320 CDI, 57K bought at 67K "Liesl"
1986 190E 2.3-16, 198K bought at 56K "Brigitta"
1987 300TD (Chuggin Along), 292K "Friedrich"
1995 E320 Wagon, 200K "Louisa"

Past
1987 300SDL, (sold) 125K, bought for 1$ "Kurt"