A leaking axle shaft seal and / or PTU cover seal can cause transmission (red) or Power Transfer Unit (PTU) (brown) fluid leaks at the axle area. The axle shaft seal and / or PTU cover seal may be leaking and should be replaced as required.Google+
Car Problem Reports
Ford Flex Transmission (Red) or Power Transfer Unit (PTU) (Brown) Fluid Leaks at Axle Area
Ford Flex Problem
Drive Trains Affected: 2WD, 4WD, AWD
Average Mileage: 72,377 mi (35,800 mi - 122,500 mi)
Visitor, 2010 Ford Flex, 2WD, 88,000 mi
Right front trans axel leak
Visitor, 2009 Ford Flex, AWD, 57,000 mi
Power Transfer Unit Leaked. It seems that either the leak or some other event caused the internal casing to burn up. now the unit has to be replaced at a cost of ~$1400
Visitor, 2010 Ford Flex, AWD, 74,000 mi
brown fluid drops on garage floor. Dealer said they must R& R PTU and reseal for $820.70 Hoping I can find it done cheaper somewhere else.
Visitor, 2009 Ford Flex, AWD, 89,000 mi
We are now on our 4th seal and it's now has gone bad. Dealer is saying we need a new PTU ... for a seal issue?
Visitor, 2009 Ford Flex, AWD, 58,095 mi
This is the second leak in 5000 miles (June 2012).
Visitor, 2009 Ford Flex, 4WD, 35,800 mi
Transmission fluid leaked at first. ( Drive shaft seals bad) Now have leak in rear differential.