Drivetrain - Fluid Leak From Rear Differential Vent Cap
TSB 12-8-1208/16/12
ALL WHEEL DRIVE - FLUID LEAK FROM REAR
DIFFERENTIAL VENT CAP - TEMPERATURES BELOW
0 DEGREES C (32 DEGREES F)
FORD:
2011-2012 Fusion
2011-2013 Taurus
2011-2012 Escape
2011-2013 Edge, Explorer, Flex
LINCOLN:
2011-2012 MKZ
2011-2013 MKS, MKT, MKX
MERCURY:
2011 Milan, Mariner
ISSUE
Some 2011 Mariner, Milan, 2011-2013 Taurus, Explorer, Edge, MKX, MKS, 2011-2012 Fusion, MKZ, 2011-2012 Flex, MKT, 2013 Flex and MKT vehicles equipped with a 3.5L GTDI engine may exhibit an occasional fluid leak coming from the rear differential vent cap in temperatures below 32 degrees Fahrenheit (0 degrees Celsius) under certain conditions.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
1. Inspect the rear drive unit for oil leaking from the vent cap located on the rear cover.
a. If only a light residue is found around the cap, this is normal. This article does not apply.
2. Remove and discard the vent from the rear drive unit cover.
3. Install new vent.
4. Clean off any remaining residue.
Parts Block
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage Warranty/ESP coverage limits/policies/prior approvals are not altered by a TSB. Warranty/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.
OPERATION DESCRIPTION TIME
120812A 2011 Milan, Mariner, 0.3 Hr.
2011-2012 Escape, MKZ,
Fusion, 2011-2013 Taurus
MKX, MKS And Edge:
Inspect And Replace The
Rear Drive Unit Vent (Do
Not Use With Any Other
Labor Operations)
120812A 2011-2013 Explorer, MKT 0.4 Hr.
And Flex: Inspect And
Replace The Rear Drive
Unit Vent (Do Not Use
With Any Other Labor
Operations)
DEALER CODING
CONDITION
BASIC PART NO. CODE
4022 42
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