20467332

Technical Service Bulletin
Topic
Market area
Brand
Transaction No.
Level
Status
Release date
Steering rack noise during extended city drive cycle
Bentley: worldwide (2WBE),Hongkong-Macau (5HK)
Bentley
2046733/2
EH
Released for publishing
Mar 8, 2017
New customer code
Object of complaint
Complaint type
Position
Chassis -> Steering, steering assist -> Steer Noises, vibrations -> Noise
New workshop code
Object of complaint
Chassis -> Steering -> Steering gear -> Electromechanical steering torque
sensor
Complaint type
Component, automotive fluids -> Installed
incorrectly
Vehicle data
Bentayga
Sales types
Type MY Brand Designation Engine code Gearbox code Final drive code
4V1* 2017 E
*
*
*
Chassis numbers
Manufacturer Filler Type Filler MY Factory From To
Prod from Prod to
SJA
***
**
*
*
*
000001 013900
Documents
Document name
master.xml
Position
Technical Service Bulletin
Steering rack noise during extended city drive cycle
Transaction No.: 2046733/2
Release date: Mar 8, 2017
Condition
Steering grinding noise after vehicle driven for extended period in city conditions
Technical Background
Steering rack internal torque sensor defective
Production Solution
Redesigned torque sensor
Service
In the event of the above customer complaint, then check the steering rack part number. A steering rack with part number 4N1423053E and a
generation code of 06S or lower is suspect and should therefore be changed if the symptom detailed in this TPI has been reported by the owner.
Note: Steering racks with part number 4N1423053F irrespective of generation code are considered ‘good’ and therefore not associated with this TPI
symptom
Figure 1
The example figure 1 details the steering rack part number and code on the body of the unit. In this example the part number is 4N1423053E and
generation code is 07S this generation code is higher than 06S therefore this part would not have to be replaced in respect to the symptom detailed
in this TPI
Note: The above references left hand drive part numbers there is the potential for this failure to occur on right hand drive cars in that instance the
suspect steering rack part number would 4N2423053E 06S or lower