Drivetrain - Rear Differential Oil Seal(s) Leaking

Bulletin No: 03-004/11

Last Issued: 09/21/2011

Subject:
OIL SEEPAGE FROM REAR DIFFERENTIAL OIL SEAL

APPLICABLE MODEL(S)/VINS

2007-2011 CX-7 4WD vehicles with VINS lower than JM3ER******393362 (produced July 1, 2011)

2007-2011 CX-9 4WD vehicles with VINS lower than JM3TB******329116 (produced July 1, 2011)

DESCRIPTION

Some vehicles may exhibit oil seepage from the rear differential oil seal.

When driving in cold weather conditions, snow or water may splash over the rear differential and choke the breather. The internal pressure of the rear differential increases, which wears the oil seal.

The height of the breather has been increased and the boot has been attached over the breather to protect it from splashing snow or water.

Customers having this concern should have their vehicle repaired using the following repair procedure.

REPAIR PROCEDURE

1. Verify customer concern.

2. Replace the oil seals (both sides) according to the online instructions on MS3 or the Workshop Manual (section 03-14 OIL SEAL (SIDE GEAR) REPLACEMENT.





3. Remove the breather from the differential.

4. Replace the breather, then attach the rubber boot over the breather.

NOTE:
Face the ventilation hole of the boot backwards as shown.

5. Verify repair.





PART(S) INFORMATION

WARRANTY INFORMATION





NOTE:

^ This warranty information applies only to verified customer complaints on vehicles eligible for warranty repair.

^ This repair will be covered under Mazda's New Vehicle Limited Warranty and Powertrain Limited Warranty term.

^ Additional diagnostic time cannot be claimed for this repair.





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