NHTSA ID Number: 11027462
Manufacturer Communication Number: 2072938/5
TSB/Document Date: 2026-01-08
Summary
Front or rear door(s) - Soft close function failure - DTC B122D29 | Bentayga | 22MY - 25MY. Customer statement: • Front or rear door(s) - Soft close function failure
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TSB/Document ID: 2072938/5
Replacement Service Bulletin Number:
MFR Communication Date: 2025-12-11
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: STRUCTURE:BODY
MFR Component System:
MFR Component Subsystem:
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Technical Service Bulletin
Topic
Front or rear door(s) - Soft close function failure - DTC B122D29 | Bentayga | 22MY - 25MY
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),
Market area 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)
Brand
Bentley
Transaction
2072938/5
No.
Level
EH
Status
Released for publishing
Release
date
Dec 10, 2025
Diagnostic trouble codes
Fault
symptom
Storage
state
Diagnostic address
Diagnostic trouble code
0072 - Right rear door
electronics
B122D29: Lock unit for central locking
implausible signal
Intermittent
0062 - Left rear door
electronics
B122D29: Lock unit for central locking
implausible signal
Intermittent
0062 - Left rear door
electronics
B122D29: Lock unit for central locking
implausible signal
static
0042 - Driver's door
electronics
B122D29: Lock unit for central locking
implausible signal
Intermittent
0042 - Driver's door
electronics
B122D29: Lock unit for central locking
implausible signal
static
0052 - Passenger's door
electronics
B122D29: Lock unit for central locking
implausible signal
Intermittent
0052 - Passenger's door
electronics
B122D29: Lock unit for central locking
implausible signal
static
0072 - Right rear door
electronics
B122D29: Lock unit for central locking
implausible signal
static
New customer code
Object of complaint
Complaint type
body attachments and installations -> doors, lids operation -> close
noises, vibrations ->
Position
door
noise
body attachments and installations -> doors
noises, vibrations
body attachments and installations -> doors, lids operation
functionality
Vehicle data
Bentayga
Sales types
Type MY
Brand Designation Engine code Gearbox code Final drive code
4V1* 2022 E
*
*
*
4V1* 2023 E
*
*
*
4V1* 2024 E
*
*
*
4V1* 2025 E
*
*
*
4V1* 2026 E
*
*
*
Documents
Document name
master.xml
Transaction No.:
Technical Service Bulletin
Front or rear door(s) - Soft close function failure - DTC B122D29 | Bentayga |
22MY - 25MY
2072938/5
Release date: Dec 10,
2025
Condition
Customer statement
•
Front or rear door(s) - Soft close function failure
Workshop findings
•
DTC B122D29 is evident within one or a combination of the front and / or rear door control unit(s)
Technical Background
Soft close feature does not operate to specification (front and / or rear)
In the event the issue is as described the operative must conduct the instructions within the Measure section
of this TPI
NOTICE
Although the soft close feature does not operate the door can be manually closed / latched
Revision history
TPI 2072938/2
Door control unit replacement has been removed from the Measure section
TPI 2072938/4
The measure section has been amended to remove the need to raise a DISS query in all scenarios
Production Solution
-
Service
Step 1 - Soft close function and DTC check
•
Using ODIS erase DTC B122D29 from the applicable door control unit(s)
•
Ensure the bonnet, boot and all doors are closed
•
Lock the vehicle
•
Wait 5 minutes to allow the vehicle to go into bus silence
•
When 5 minutes has elapsed, unlock the vehicle
•
Open the applicable door
•
Check the soft close function is operating to specification
Yes (soft close function is operating to specification) and DTC B122D29 is no longer evident
•
Fully open and close the applicable door (x5) times to confirm the soft close function is operating to
specification
•
Confirm DTC B122D29 is no longer evident
Should the soft close function be operating to specification and DTC B122D29 is not evident no further
action is required
Or
Should the soft close function not be operating to specification and / or DTC B122D29 is evident the
operative must go to Step 2
Step 2 - Door latch replacement
Referring to Rep.Gr 57 (front) or Rep.Gr 58 (rear) replace the applicable door latch
Note: For reference purposes Figure 1 shows an example of a door latch
Figure 1
IMPORTANT: The operative must ensure the door trim is refitted as per all Rep.Gr instructions before
conducting the remaining steps
•
Using ODIS erase DTC B122D29 from the applicable door control unit
•
Ensure the bonnet, boot and all doors are closed
•
Lock the vehicle
•
Wait 5 minutes to allow the vehicle to go into bus silence
•
When 5 minutes has elapsed, unlock the vehicle
•
Open the applicable door
•
Check the soft close function is operating to specification
Yes (soft close function is operating to specification) and DTC B122D29 is not evident
•
Fully open and close the affected door (x5) times to confirm the soft close function is operating to
specification
•
Check DTC B122D29 is no longer evident
Should the soft close function be operating to specification and DTC B122D29 is not evident no further
action is required
Or
Should the soft close function not be operating to specification and / or DTC B122D29 is evident the
operative should raise a full technical DISS query and await feedback before conducting any further work
Warranty
Warranty Type
110 or 910
Front door latch
Damage Service Number
Damage Code
57 17
00 20
Rear door latch
Damage Service Number
Damage Code
58 17
00 20
Door latch replacement
Time to remove and refit the front door trim (x1)
Labour
Labour operation code
Time
70 59 19 00
20 TU
Time to remove and refit the rear door trim (x1)
Labour
Labour operation code
Time
70 73 19 00
20 TU
Time to replace the front door latch
Labour operation code
Time
57 17 55 00
20 TU
Time to replace the rear door latch
Labour operation code
Time
58 17 55 00
30 TU
Diagnostic time
Labour operation code
01 50 00 00
Time
As per ODIS log (must not exceed 20 TU)
Required Parts and Tools
Refer to the ETKA parts catalogue
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