Technical product information
Vehicle vibration / humming at idle - Active engine mount leak - Active engine mount replacement
Russische Föderation (5RU),Australia E04 Bentley rest Asia and Australia (6E04),China 796 VW Import Comp. Ltd (Vico), Beijing
(6796),Germany E02 Bentley rest Europe (6E02),Japan E03 Bentley Japan (6E03),Korea, (South) E08 Bentley South Korea
(6E08),United Arab Emirates E06 Bentley Middle East and Africa (6E06),United Kingdom E01 Bentley UK (6E01),United States
E05 Bentley USA and rest America (6E05)
Bentley

Topic
Market
area
Brand

Transaction 2060418/1
No.
Level
EH
Status
Approval
Release
date
New customer code
Object of complaint
Complaint type
Position
vehicle service -> IT systems -> SVM (software version management) functionality -> cannot be started
whole vehicle -> assemblies -> engine assembly
noise, vibration -> noise

Vehicle data
Bentayga
Sales types
Type

MY

Brand Designation Engine code Gearbox code Final drive code

4V14A9
4V14A9
4V14A9
4V14A9
4V14G9

2017
2018
2019
2020
2020

E
E
E
E
E

*
*
*
*
*

*
*
*
*
*

*
*
*
*
*

Chas is numbers
Manufacturer Filler Type Filler MY Factory From To
Prod from Prod to
*
*
*
*
*
*
000001 027866

Documents
Document name
master.xml

Technical product information
Vehicle vibration / humming at idle - Active engine mount leak - Active engine mount replacement

Transaction No.: 2060418/1

Customer statement / workshop findings
Vehicle vibration / humming noise at idle

Technical background
Right hand Active Engine Mount (AEM) failed, oil may also be leaking from the AEM (Figure 1). This failure mode is only seen on W12 engine
installations and is only apparent at idle

Figure 1
Current software is incompatible with AEM part numbers 4M0 199 255/6 BH.
When the AEM’s are replaced with the above part numbers, the AEM control module must be reprogrammed or replaced as detailed within
the onward instructions

Production change
New software and AEM combination was introduced from VIN SJAAH14V1LC027866.

Measure
In the event of a failure / complaint as detailed, then replace the right and left hand AEM with 4M0 199 255 BH and 4M0 199 256 BH
•

Refer to Rep.Gr.10 Engine mounts – To remove and fit

Additionally changes must be made to the AEM control module, apply the onward instructions
•

Ensure that both AEM’s are now fitted with part numbers 4M0199255/6 BH

•

Check and confirm the Hardware version number of address 00BA Assembly Mounting, the hardware version must be H10.

Figure 2 shows the Hardware version number at H10

Figure 2
•

Should the Hardware version number not be H10, you must replace the AEM control module with part number 4M0 907 145

E. Rep.Gr 10 → Electrohydraulic engine mounting control unit - To remove and fit
If the control unit is at H10 proceed straight to the Reprogramming control module section of this TPI.

Reprogramming control module
Update the software of the AEM control module - Diagnostic address 00BA as follows:
1. Select and run Guided fault finding
•

Within the Special functions tab select SVM – Problem related Hardware/Software update then select Perform test (Figure 3).

Figure 3
2. On the next screen enter the SVM code 4V0BAAEM01 and select Adopt (Figure 4).

Figure 4
3. On the following screen, confirm the code then select Yes.
4. Follow all on screen prompts.
5. The software of 00BA Assembly Mounting will now be reprogrammed (Figure 5). NOTE: Depending on the software part number of the control
module your vehicle may skip straight to step 6, if so proceed as instructed.

Figure 5

6. Once the software is updated, a parameter setting is required, select Yes (Figure 6).

Figure 6
7. You will then see a confirmation message that the reprogramming has been successful (Figure 7).

Figure 7
8. Follow on screen prompts until program end.
9. Confirm that the software reprogramming has completed successfully. Read the identification data of address 00BA (Figure 8).

Figure 8
Your vehicle must read as per the table below;
Software Part Number

Software version

Record Number

4M0907145E

0132

V03935304BP

10. Complete the Basic settings of the active engine mounts:

00BA – Assembly Mounting → Guided functions → BA – Basic settings

Warranty accounting instructions
Replacement of the left hand AEM
Warranty type 110 or 910
Damage code
00 20
Damage service number 10 35
Labour
Labour operation code 10 35 19 51
Time
10 Time units
Replacement of the right hand AEM
Labour operation code 10 35 19 52
Time
10 Time units
Remove and refit the front subframe
Labour operation code 40 07 19 00
Time
490 Time units
Reprogramming of the AEM control module ( if required)
Labour
Labour operation code 01 51 00 00
Time
As per ODIS log (No more than 40 Time units)
Replacement of the AEM control module (if required)
Labour
Labour operation code 10 39 19 00
Time
30 Time units

Parts information
Part Number

Description

Quantity

4M0 907 145 E

Control unit for electrohydraulic engine mount 1

4M0 199 255 BH

Active Engine Mount LH

1

4M0 199 256 BH

Active Engine Mount RH

1