Page 271 of my 2010 manual shows the GVWR for the various E70 X5 models (but does not show a GCVW figure.)
For mine: 2010 X5 35d with 3rd row.
GVW - 6,614 lbs
Load - 1,290 lbs
Rear Axle - 3,858
Front Axle - 3,064
But, I can't find anything in the manual or on BMW's website that says anything about towing. However, the hitch installation instructions offer this:
Quote:
- The BMW X5 hitch is rated Class 3 (gross trailer weight 6,000 lbs, maximum tongue weight 600 lbs.) NEVER exceed these specifications. This rating is based on a standard equipped vehicle with driver. Additional passengers and/or cargo will reduce maximum vehicle/trailer ratings."
- Do not exceed gross vehicle weight or front/rear axle weights as specified in the vehicles owner's manual and displayed on the Safety Certification Label located on the driver's door jamb.
- Do not use weight distribution equipment.
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So, BMW says it is rated at 6,000 lbs max with vehicle/driver. We can surmise a GCVW rating with all this information.
On BMW's website, the unladen weight is listed at 5,192 lbs, so let's add 200 lbs for a driver and we are at 5,392 as the "wet weight." Alternately, Max payload is listed as 1,290 lbs with a GVWR of 6,614 lbs. This gives us a "wet weight" of 5,324, which is close to our figure above. Let's go with "vehicle plus driver" as being 5,350 lbs. Add 6,000 lbs to that and we have a GCVWR of 11,350 lbs. Let's round that down to 11,000 lbs max GCVWR.
So, if we have a fully loaded X5 (6,614 lbs max), our max trailer capacity is now 4,386 lbs.
For my own towing needs, I figure it this way:
Driver - 250 lbs
Passengers (wife and 2 young kids plus boosters) - 300 lbs
Tongue weight - 500 lbs
Subtotal - 1,050 lbs.
Remaining payload - 240 lbs (workable.)
My trailer weighs in at 3,500 lbs max, but we are usually towing at 3,000 to 3,250 lbs. So I'm still well below the 4,386 lbs max towing with a fully loaded X5.
I haven't actually towed with it yet (don't even have the hitch installed), so we'll see how "reality" compares to my "theory."