Except--as in this case--when the OE tires are run-flats, in which case the owners' manual omits scary, confusing and useful facts like this.
On 14mm lugs 120 Nm or ~88.6 lb/ft - dry as in no lube on threads. Most folks torque to 90 ft/lbs. because it's easy. http://www.tirerack.com/wheels/tech/techpage.jsp?techid=107&