One problem related to transmission fluid leaking has been reported for the 2011 Ford Flex. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Ford Flex based on all problems reported for the 2011 Flex.
Power take off assembly failure - at ~59k miles into my 75k mile extended warranty I took my vehicle in to service because of an oil burning smell after highway driving. About a month or so later I returned to advise of the same smell. The seal was removed and replaced. Subsequent highway travel yielded additional burning oil odors that I've returned to the dealer for diagnosis but the cause was not identified until the last visit ¿ on 7/24/14 @ 58,195 mi. On 10/9/14@ 59,472 mi. On 04/22/15 @ 72,712 mi. On 11/23/15 @84,974 mi. . Read more...