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Old 04-21-2013, 10:29 AM
invisihitch invisihitch is offline
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Location: Atlanta
Join Date: Nov 2012
Posts: 426
Mein Auto: 2012 X3
We have never seen a U.S. version of the X3 that did not come standard with the factory tow-prep wiring (the "8SL" package), whether the 28i or the 35i. I have no idea why the 8SL wiring would not be listed on the equipment list for the 35. We have certainly installed many hitches on the 35i, and all have had the factory tow-prep wiring.

Also, the 3,500 lb towing capacity for the X3 that BMW asserts in North America is actually limited by the Class 2 dealer hitch, not by the X3 itself. In other parts of the world where a heavier-duty, Class 3 "zero-play" hitch is the dealer hitch, BMW rates the towing capacity of the X3 at over 5,000 lbs. So it is a surprisingly stout tow vehicle when equipped with a proper Class 3 hitch.

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