x5 is pretty good for light off-roading, but must be carefull of the ground clearence. Do not drive X into water deeper than 500mm, it will damage the video module, radio module and air supply control unit which are located in the lower trunk. I always drive my X for light off-roading like climbing hills, running through mud, etc... The most important thing is to keep rearly low speed saying below 8 KM/H. I am using 17" rims and Dunlop AT20 tires. The tires are not good enough but just merely ok. Several day ago, I drove my X into a river where I guess the water was around 500-600mm. After I got out from the river, the 'Selflevl susp. inact' got on, onboard monitor was dead and the radio worked unstable. I got my X to the dealer for inspection, dealer told me that my video module, radio module and air supply control unit which controls rear suspension unit were dead and must be replaced due to flood. Except these 3 things, every thing runs without any problem. So I think if my X had 200mm groud clearence more, then everything should have been ok.

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--2004 E53 X5 4.8is - ECE version; right hand drive; Located in Hong Kong; ext. black sapphire metallic; int. leather black; adaptive dynamic bi-xenon headlights; 16:9 onboard monitor w/o navigation; 20" genuine BMW Y-spoke 214 wheels with Bridgestone Dueler H/P Sport tires; Int. rear view mirror w/ compass.