2052853/7

Technical Service Bulletin
Topic
Market area
Brand
Transaction No.
Level
Status
Clicking noises from the left and/or right front corner(s)
Bentley: worldwide (2WBE),Hongkong-Macau (5HK)
Bentley
2052853/7
EH
Archive
New customer code
Object of complaint
chassis -> steering, steering assist -> steer
chassis -> brakes, brake regulation -> foot brake
chassis -> damping\suspension regulation -> deflecting
Complaint type
Position
noises, vibrations -> snapping
noises, vibrations -> clicking
noises, vibrations -> noise
front
Vehicle data
Bentayga series
Sales types
Type
4V1*
4V1*
4V1*
4V1*
4V1*
4V1*
MY
2017
2018
2019
2020
2021
2022
Brand Designation Engine code Gearbox code
E
*
*
E
*
*
E
*
*
E
*
*
E
*
*
E
*
*
Documents
Document name
master.xml
Final drive code
*
*
*
*
*
*
Technical Service Bulletin
Clicking noises from the left and/or right front corner(s)
Transaction No.: 20 5 2 8 5 3 / 7
Condition
Clicking noises from the left and/or right front corner(s)
Technical Background
In order to accurately diagnose and repair customer reported clicking noises from the front corner(s) the Measure section of this TPI consists of
three individual sections, each section describes the symptom and the remedy which should be applied
Symptoms and descriptions regarding clicking noises can appear to be very similar when described, where possible the
customer should demonstrate the reported symptom to enable correct diagnosis
Production Solution
Symptom 1 - Applicable to all VIN’s exhibiting the issue as described within the Measure section
Symptoms 2 and 3 (Iron brakes only) - Refer to the Measure section to confirm the method of repair depending on VIN
Service
Symptom 1
Single click from the front wheel corner(s) when the steering is moved from lock to lock whilst stationary
Verify that the customer complaint matches the video within the Bentley Hub – Reference TPI Transaction number 2052853/- Symptom 1
- If so then replace both front lower inner control arm bushes (Figure 1)
IMPORTANT: Please check the vehicle Repair History to confirm the inner bushes have not been previously replaced, if they have been
replaced once before, You must then replace the complete arm, Do Not carry out the bush replacement procedure more than
once (per lever)
IMPORTANT: Prior to starting this procedure ensure you have assembly lubricant part number G 052 566 A2 this must be used when fitting the
new replacement bushes, the lubricant should only be used when the bushes are replaced as per the instructions within TPI 2052853/Each bush should have 5ml of lubricant applied prior to fitment within the bush, the grease should remain present throughout the fitting/pressing
in procedure as the grease aids the fitting process and is also crucial once fitted to eliminate any further noise issues Please Note that x1 – 100
ml tube will be sufficient for use on 20 bushes (10 vehicles) – Do not order x1 tube of lubricant per each individual vehicle complaint
1) Remove the left and right hand side Lower suspension levers - Refer to Repair manual Rep.Gr.40
•
Once removed refer to the attached document and follow the instructions to replace the left and right hand side lever inner bushes
Within the Repair manual procedure there are single use items which must be replaced and not reused. Ensure that new
replacements are available prior to starting this procedure – Refer to Elsa pro and ETKA parts catalogue
Figure 1
For this TPI only (Symptoms 2 and 3) the best practice of replacing brake pads whenever new brake discs are fitted is only
required if, on inspection, the brake pads are determined not to be serviceable for example they are found to be worn,
cracked, uneven wear, contaminated, degraded due to foreign matter e.g road salt/pebbles damage
IMPORTANT NOTE: The replacement of the brake pads is not required to actually fix the issues described in symptoms 2 and 3, the brake
pads cannot be replaced under warranty as part of this repair
Symptom 2 (Iron brakes only)
Continuous clicking noises from the front wheel corner(s) of the vehicle whilst driving forwards or in reverse – with steering input and
at low speeds (car park speeds)
Verify that the customer complaint matches the video within the Bentley Hub – Reference TPI Transaction number 2052853/- Symptom 2
Upto and including VIN SJAAF1ZV1KC025919
- Replace both front brake discs Rep.Gp.46 Front brake discs - to remove and fit
- Replace all front wheel bolts
Post VIN SJAAF1ZV1KC025919
- Raise a new DISS query or respond to an already open query with the following information
•
Clear video of the issue must be attached
•
Photographs of the left and right hand front brake disc date of manufacture stamp as shown in Figure 2
•
Await feedback via DISS before conducting any further work
NOTE: The date shown in Figure 2 is 08-01-21
Figure 2
Symptom 3
Continuous clicking from the front wheel corner(s) whilst driving forwards with the brakes applied from 10mph to stop with no steering input
Verify that the customer complaint matches the video within the Bentley Hub – Reference TPI Transaction number 2052853/- Symptom 3
Upto and including VIN SJAAF1ZV1KC025919
- Replace both front brake discs Rep.Gp.46 Front brake discs - to remove and fit
- Replace all front wheel bolts
Post VIN SJAAF1ZV1KC025919
- Raise a new DISS query or respond to an already open query with the following information
•
Clear video of the issue must be attached
•
Photographs of the left and right hand front brake disc date of manufacture stamp as shown in Figure 2
•
Await feedback via DISS before conducting any further work
Warranty
On successful completion of this TPI the retailer should submit a DISS complaint query (only) ensuring the symptom number which was used to
solve the complaint is included within the query NOTE: Technical DISS queries are not required
Symptom 1 – Remove and refit the right and left hand front levers
Warranty Type
110 or 910
Labour Operation Code
40 17 20 00
Damage Service Number
40 17
Damage Code
00 20
Time
190 Time units
Replacement of the right and left hand front lower inner bushes
Warranty Type
110 or 910
Labour Operation Code
40 20 56 50
Damage Service Number
40 20
Damage Code
00 20
Time
20 Time units
Symptoms 2 and 3
Two wheels removed and reinstalled
Warranty Type
110 or 910
Labour Operation Code
44 05 20 00
Damage Service Number
46 50
Damage Code
00 20
Time
10 TU
Two front brake discs replaced
Warranty Type
110 or 910
Labour Operation Code
46 50 56 50
Damage Service Number
46 50
Damage Code
00 20
Time
90 TU
Required Parts and Tools
Symptom 1
IMPORTANT: Please check the vehicle Repair History to confirm the inner bushes have not been previously replaced, if they
have been replaced once before, You must then replace the complete arm, Do Not carry out the bush replacement procedure
more than once (per lever)
Part Number
Description
Quantity
As per ETKA parts catalogue Front lower inner control arm bushes
2
G 052 566 A2
1
Assembly grease - 100 ml tube
Please Note that x1 – 100 ml tube will be sufficient for use on 20 bushes (10 vehicles) – Do not order x1 tube of lubricant
per each individual vehicle complaint
Symptoms 2 and 3
The required replacement parts should be ordered using ETKA parts catalogue from Bentley Motors Limited Crewe or through your regional
parts distribution centre