Engine - A Small O-Ring Found In Oil Filter Housing

SI M11 06 12
Engine

October 2012
Technical Service

SUBJECT
During Engine Oil Service a Small O-Ring Is Found in the Oil Filter Housing

MODEL
R55 with N12, N14, N16 and N18 engines
R56 with N12, N14, N16 and N18 engines
R57 with N12, N14, N16 and N18 engines
R58 with N16 and N18 engines
R59 with N16 and N18 engines
R60 with N16 and N18 engines

All vehicles produced from start of production to December 2011

SITUATION





No customer complaint has been received. During the scheduled engine oil service, the technician notices a black rubber o-ring lying on the bottom of the engine oil filter housing. The o-ring has been dislodged from the non-return valve inside the engine oil filter housing. No subsequent engine damage occurs from the dislodged o-ring.

CAUSE
The material dimensions of the rubber o-ring are not satisfactory, allowing it to become dislodged from its installation location.

PROCEDURE
If the o-ring is found in the engine oil filter housing, the entire engine oil filter housing must be replaced.

PARTS INFORMATION
Refer to EPC using the VIN of the vehicle for applicable parts, bolts and gaskets when replacing the engine oil filter housing assembly.





WARRANTY INFORMATION