S-Type (X200) V8-4.2L (2005)
Differential Axle Housing: All Technical Service Bulletins
Drivetrain - Whine From Rear of Vehicle
NUMBER
ST205-003
*(Issue 2)*
DATE
23 Oct 2006
MODEL
S-TYPE
ISSUE '2' CHANGES ARE HIGHLIGHTED WITH GREY BACKGROUND AND ASTERISKS
SECTION:
205-00 - DRIVELINE SYSTEM
Whine from Rear of Vehicle
AFFECTED VEHICLE RANGE:
S-TYPE
VIN:
M45255 onwards
Model Year:
2003 onwards
CONDITION SUMMARY:
WHINE FROM REAR OF VEHICLE AT 60 MPH (96 KPH)
Situation:
A customer may report a concern of a 'whine' noise coming from the rear of the vehicle at 60 mph (96 km/h). A harmonic frequency generated by the
rear differential (axle) may be the cause.
*Two conditions may contribute to the whine noise:
^
An early design level differential with an early design level bushing.
^
A updated design level differential with an early design level bushing.
NOTE:
New differentials require some drive time to break-in. After installing a new differential, the vehicle may need to be driven approximately 500 miles
(800 km) before a reduction in noise level may be noticed.*
Action:
Should a customer concern be verified, refer to the Repair Procedure detailed in this bulletin to determine if a new axle housing bushing or a new
differential (axle) assembly is required to complete the necessary service fix.
PARTS:
NOTE:
The number stamped on an early and a new axle housing bushing will be the same. To differentiate the bushings, the steel carrier of the new bushing
(C2C16377) is black, while the steel carrier of the early bushing (C2C1780) is silver.
C2C16377..........Differential isolator, front lower (new "black" axle housing bushing) Qty 1
Use to update the following differential (axle) assemblies:
^
XR853840 - Differential assembly - V6 automatic transmission
^
XR853839 - Differential assembly - V6 manual transmission
^
XR853838 - Differential assembly - V8 Naturally Aspirated & Supercharged
*NOTE: