It's not uncommon to run in to standing water during or after rainfall in my area. It ranges from a few inches to well over one foot at times, and sometimes unavoidable (ie leaving a parking lot with no other way out).
What kind of water wading capability is the Q5 able to tackle?
I'm assuming this will vary depending on whether you're driving a 2.0T/3.0T/TDI.
Euro SQ5 says 170mm, equal to the ground clearance... Not sure why. So far I can only assume the fancy exhaust actuator doesn't like getting wet...
Not sure what the US spec SQ5 says, be interesting to see if its 200mm (as it's not lowered 30mm compared to euro).
2013 Audi SQ5 TDI Glacier White, 21" alloys
Fine Nappa Leather Seats: Black, Headliner: Black, Inlays - Carbon atlas, Leather package Plus
Adaptive headlights, Advanced key, Audi drive select, Audi hill-hold assist, Audi Parking System Advanced, Bang & Olufsen Sound System, Black roof rails, Climate cup holder, Deletion of TDI technology designation at rear (keeping SQ5 and V6 T on wings and added extra T), Door mirrors – elec adjustable/folding/heated/auto-dimming with memory function, Dynamic steering, Electrically-adjustable front seats with memory function, Heated front and outer rear seats, High-beam assist, MMI navigation plus, Mobile telephone preparation – High with Audi connect, Audi side assist and Audi active lane assist, Power-operated tailgate, Privacy glass, DAB digital radio, Side window blinds – manual, Towing equipment, Rear bench seat plus, Rear side airbags, Removable net partition, Retractable and extendable sun visor, 3-spoke multi-function flat bottomed steering wheel with gear-shift paddles, Storage package, Tyre pressure loss indicator, Underfloor storage tray in boot
I would ignore the 19.7" illustration. At that point the wate may be penetrating the door sill seals and flooding the interior of the cabin, which is sufficient to destroy parts of the interior wiring harness and carpeting and create mildew problems even if the electrics survive.
No doubt the engine would still operate quite well so you could "escape" whatever you had to, but you'd have to weight that against the risk of cabin intrusion. And I'd expect Audi, like most others, has rubber pop-out gaskets in the floor of the body, which sometimes rudely pop IN and allow the cabin to flood if submerged.
The ground clearance, slighty under eight inches, is probably the safe number.
Priceless line from the movie Risky Business, after a Porsche gets driven into a lake:
" And who is the U-boat commander?!"
__________________ It followed me home. That's my story and I'm sticking to it.
Herr Doktor Strangelove: A brilliant product of German engineering that rides on four wheels and has just a few, heheh, quirks.