Technical product information
Topic
Market area
Brand
Transaction No.
Level
Status
Release date

Creaking noise from the front suspension when manoeuvring
Bentley: worldwide (2WBE),Hongkong-Macau (5HK)
Bentley
2048616/5
EH
Approval

New customer code
Object of complaint

Complaint type

Position

running gear -> shock absorber/suspension control -> jounce noise, vibration -> creak front
New workshop code
Object of complaint

Complaint type

Position

running gear -> running gear, springs, shock absorbers -> axle member mount noise, vibration -> noise left
running gear -> running gear, springs, shock absorbers -> axle member mount noise, vibration -> noise right

Vehicle data
Bentayga
Sales types
Type MY Brand Designation Engine code Gearbox code Final drive code
4V1* 2017 E
4V1* 2018 E
4V1* 2019 E

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Documents
Document name
master.xml
creaklowersuspensionleverbush.docx
kovomoanddiesel.docx
lowersuspensionleverw12only.docx
transmissionmountsfront.docx

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Technical product information
Creaking noise from the front suspension when manoeuvring

Transaction No.: 2048616/5

Customer statement / workshop findings
Creaking noise from the front suspension when manoeuvring

Technical background
Front suspension entering bump phase during braking can produce an audible creak from the lower control arm hydraulic mounts

Production change
*

Measure
Listen to the below video link and compare it to the customer complaint:
https://vimeo.com/291048296
The noise present in the video is caused by defective Lower suspension lever - Rear - Hydraulic mounts. In order to reproduce the noise this bush
must be twisted, therefore the noise can appear in the following circumstances
•

When performing parking manoeuvers with the brake applied

•

When steering from lock to lock with the vehicle in motion and the brake applied

•

When the vehicle is moved with steering input over uneven surfaces (for e.g. a ramp or speed bump)

If the customer complaint occurs in any of the above circumstances and the noise can be clearly assigned to the above video link in this TPI, then
replace the right hand front and left hand front rearmost lower suspension lever inner hydraulic mounts - Refer to Repair manual Rep.Gr.40 front
suspension, lower suspension lever bushes – to remove and fit NOTE: Should the remove and refit instructions not be visible within the
Repair manual please refer to the attached documents, please ensure the correct document is followed as the remove and refit
procedures for the front rearmost lower suspension levers removal is different depending on type of engine which is fitted

NOTE: The lubricant quoted within the procedure should be sourced locally or use a suitable alternative of the same specification
Figure 1 shows for example the left hand front rearmost lower suspension lever (A) the hydraulic mount which must be changed is located at (B)

NOTE: Ensure the right and left hand side hydraulic mounts are replaced

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

Warranty accounting instructions
Bentayga W12
Warranty type
Labour Operation Code

110 or 910
40 20 56 00

(Use 40 20 56 99 until 09/05/19)

Damage Service Number 40 20
Damage Code
Time

00 20
590 TU

Bentayga Kovomo V8
Warranty type
Labour Operation Code

110 or 910
40 20 56 20

Damage Service Number 40 20
Damage Code

00 20

Time

260 TU

(Use 40 20 56 99 until 09/05/19)

Bentayga Diesel
Warranty type
Labour Operation Code

110 or 910
40 20 56 40

(Use 40 20 56 99 until 09/05/19)

Damage Service Number 40 20
Damage Code
Time

00 20
270 TU

Parts information
Part number

Description

Quantity

Refer to ETKA parts catalogue

Hydraulic mounts

2

Lower suspension lever (W12) - Rear - To remove and fit
General Information
The following procedure is for the LH lower rear lever. The procedure for the RH lever is the same except where
stated.
Access is only possible after the removal of the front subframe.
Special tools and workshop equipment required



Ball joint puller -T10444-



Vehicle tester



21 mm Ring insert -VAG 1332/7-

Torque tightening values
Unless otherwise shown, standard torque values apply.
→ Rep.-Gr.00

Single use items
Within this procedure there are single use items which
must be replaced and not reused. Ensure that new
replacements are available prior to starting this
procedure.

Removal
–

Remove the front subframe. Refer to "Front
subframe - To remove and fit". → Rep.-Gr.40



–

Remove the two fixings -arrows- and the heatshield
-1-.

On the outer section of the lower lever and using 21
–

mm Ring insert -VAG 1332/7-, release the nut arrow- (140 Nm) until it is flush with the end of the
thread of the ball joint.

–
–

Using Ball joint puller -T10444-, "break" the taper
pin of the ball joint.
Remove the Ball joint puller -T10444- , remove and
DISCARD the nut -arrow-.

–
–

Remove and DISCARD the fixings -2 and 3- (70
Nm + 180°.
Manoeuvre the lower lever -1- out from the sub
frame.

Installation
Installation is the reverse of removal procedure, noting
the following.
Secure the outer section of the lower lever -1- to the
–

wheel bearing housing with a NEW fixing -arrowbut do NOT yet torque tighten.

Secure the inner section of the lower lever -1- to the
–

sub frame with NEW fixings -2 and 3- but do NOT
yet torque tighten.

Caution
There is a requirement that any suspension
component with bonded rubber bushes, all levers
and the bearing housing MUST be set at standard
ride height before tightening the fixings.
Bonded rubber bushes can only be turned to a
limited extent. The suspension mountings must
therefore only be tightened when the suspension is
in the unladen position or normal level.
Failure to comply will result in the lever bushes
undertaking excessive torsional twist, resulting in
rupture and complete failure of the rubber inserts.

The suspension must be set to a specific angle prior
to torque tightening the fixings and after the
subframe has been refitted.
–

Refit the front subframe. Refer to "Front subframe To remove and fit". → Rep.-Gr.40
Position the Hydraulic support stand ASE40611000000 or VAG 1383-A- beneath the

–

wheel bearing housing and jack until the
suspension levers are at the correct ride height
level. Refer to "Raising the wheel bearing housing To tighten bolts".→ Rep.-Gr.40
With the wheel bearing housing in the raised

–

position, torque tighten the inner fixings -2 and 3- to
70 Nm + 180°.

–

Remove the Hydraulic support -ASE40611000000
or VAG 1383-A-.

Using 21 mm Ring insert -VAG 1332/7- , torque
–

tighten the nut -arrow- securing the ball joint on the
outer section of the lower lever -1- to the wheel
bearing housing to 140 Nm.

–
–

Take the car out of "Jack" mode.→ Rep.-Gr.99
Charge the air suspension. Refer to "Air suspension
system - To discharge and charge".→ Rep.-Gr.43

Automatic transmission mounts - Front - To remove and fit
General Information
This procedure is for removing the front transmission mounts Gearbox mounting valve 1 -N262- and Gearbox
mounting valve 2 -N263-.
The procedure for the LH side is different to the RH side. Refer to the appropriate section below.
Special tools and workshop equipment required
None
Torque tightening values
Unless otherwise shown, standard torque values apply.→ Rep.-Gr.00
Single use items
Within this procedure there are single use items which must be replaced and not reused. Ensure that new
replacements are available prior to starting this procedure.

Removal — LH side
–

Remove the front road wheels. Refer to "Road wheel - To remove and fit".→ Rep.-Gr.44

–

Remove the front undersheets -2 & 3-.
Remove the front subframe brace. Refer to

–

"Brace front subframe - To remove and fit". →
Rep.-Gr.40

–
–

Disconnect the electrical connection -arrow- to the
transmission mount assembly.
Remove the three fixings -1- (10 Nm) and the
upper heatshield -2-.

Carefully bend the lower heatshield -1- downwards
–

and remove the three fixings -2- (10 Nm) and the
heatshield -3- from the mounting bracket.

–

–

Detach the coolant hose at the clipping point arrow-.

Remove the M12 "Multispline" fixing -arrow- (55
Nm) from the mount.

Remove the three fixings -arrows- (20 Nm) and
–

detach the inner transmission mount bracket -1and remove from the vehicle.

Caution
Prior to removing ANY of the fixings -arrows-, mark
the position of the transmission mounting bracket -1against the automatic transmission housing in order
to retain the correct height settings of the bracket -1. Failure to do so will result in premature mount
failure!

Carefully bend the heatshield -1- back into the
–

upright position and remove the outermost mount
fixing -2- (55 Nm).

–

Manoeuvre the mount and outer bracket assembly
out from the vehicle.

Replacement of the transmission mount

–

Using a soft-faced mallet, carefully tap the lower
bracket -1- from the transmission mount -2-.

Installation – LH side
Installation is the reverse of removal procedure, noting
the following.

Caution
When refitting the transmission mounting bracket -1, the mounting bracket MUST be positioned to the
corresponding markings previously made prior to
tightening the fixings -arrows-.
–

Refit all previously removed components.

–

Torque tighten all remaining fixings.→ Rep.-Gr.00

Removal — RH side
Remove the front road wheels. Refer to
–

"Road wheel - To remove and fit".
→ Rep.-Gr.44

–