I have a 2012 X5d and love it! I want to pull a 5,000 lb camper. The dealer said they have never had anyone pull a trailer that needed a brake controller. I'm wondering if the X5d is up to the task. Does anyone have experience pulling a trailer in this weight range?
I don't know about the diesel, but I have seen several people using their X5 to tow race car trailers. Scott Blazey tows a light enclosed trailer and an e36 race car---that's got to be at least 5000 pounds! He says it does fine. That seems a bit marginal to me though. Don't want to buy a diesel Ford?
I don't know if the original poster is still following this, but one thing that might be worth considering would be to swap out the stock flexible rubber brake lines for stainless brake lines, and go to a higher-boiling-point brake fluid like ATE Super Blue.
