NHTSA ID Number: 11020249
Manufacturer Communication Number: 2077922/2
TSB/Document Date: 2025-07-07
Summary
Headlamp Control Unit Replacement | Bentayga Series | 23MY. Condition Headlamp low beam / high beam malfunction / operational issues (Inner lamp) Or Daytime running light malfunction / operational issues (Inner lamp) Or Turn signal malfunction / operational issues (Outer lamp)
Technical Service Bulletin
Topic
Market area
Brand
Transaction No.
Level
Status
Release date
Headlamp Control Unit Replacement | Bentayga Series | 23MY
Bentley
: worldwide (2WBE),China 796 VW Import Comp. Ltd (Vico), Beijing (6796)
Bentley
2077922/2
EH
Released for publishing
Jun 12, 2025
New customer code
Object of complaint
lighting, signaling -> exterior lighting -> low beams
lighting, signaling -> exterior lighting -> low beams
power, vehicle electrical system, data transfer -> power supply
Complaint type
Position
functionality -> partially out of order > no instruction <
functionality -> irregular
> no instruction <
functionality
Vehicle data
Bentayga Series 23 Model Year
Sales types
Type MY Brand Designation Engine code Gearbox code Final drive code
4V1* 2023 E
*
*
*
ZV1* 2023 E
*
*
*
Documents
Document name
master.xml
Technical Service Bulletin
Headlamp Control Unit Replacement | Bentayga Series | 23MY
Transaction No.: 2077922/2
Release date: Jun 12, 2025
Condition
Headlamp low beam / high beam malfunction / operational issues (Inner lamp)
Or
Daytime running light malfunction / operational issues (Inner lamp)
Or
Turn signal malfunction / operational issues (Outer lamp)
Technical Background
WARNING
Vehicles using a High voltage system MUST only be worked on by suitably qualified personnel
It is not possible to determine between internal lamp defects and control unit failures therefore this TPI is to advise the
replacement of the control unit in the first instance
NOTICE
IMPORTANT NOTICE: Please ensure that photographs showing the issues found whilst conducting this TPI are attached to
a new or existing DISS query as detailed below:
•
Photographs showing the actual failure mode
•
Photographs after the repair has been successfully completed
Note: Failure to provide the required information could result in warranty claims being cancelled
Hint: In the event the issue was still evident after the control unit was replaced and a new headlamp assembly was fitted, a
photograph of the failure mode after control unit replacement is also required
The complete headlamp assembly should only be renewed if the replacement of the control unit was not successful
NOTICE
Please ensure that all VIN and symptom related TPI’s are conducted before continuing with the instructions within the
Measure section in particular TPI 2054599/-
Production Solution
Not applicable
Service
CAUTION
Have the instructions within TPI 2054599/- been conducted?
Yes - Carry out the remaining instructions from step 1
No - Conduct TPI 2054599/- Hint: In the event the issue is still evident after conducting TPI 2054599/-please continue with the onward
instructions
follow the steps below,
1) Referring to Rep.Gr 94 - Replace the headlamp control unit with PN 992 941 592BH
Important note for Bentayga models with an auxiliary heater (Right hand headlamp control unit)
When replacing the right hand headlamp control unit the operative must also remove the auxiliary heater as detailed in
Rep.Gr 82
NOTICE
You must complete a software update/flash using GFF code 1500000 after replacing the headlamp control unit with part
number 992 94 192BH . See required SVM codes below.
Software details :Bentayga Standard Wheel base
Replacement of Left hand side headlight ECU - SVM code - 4V0D6DRL01
Replacement of Right hand side headlight ECU - SVM code - 4V0D7DRL01
Bentayga Extended Wheel base
Replacement of Left hand side headlight ECU - SVM code - 4V1D6DRL01
Replacement of Right hand side headlight ECU - SVM code - 4V1D7DRL01
NOTICE
In the event the issue is not resolved after the headlamp control unit has been replaced and relevant ECU Flash and TPI
2054599/- has been conducted, the operative must replace the complete headlamp assembly as detailed within Rep.Gr 94
•
Carry out a short road test to confirm the headlamps are fully functional
•
On return from road test - using ODIS recheck for any returning DTC’s
•
Should the DTC’s not be evident and the headlamps are fully functional, no further action is required
However
In the event the issue is not resolved the operative must respond via an existing DISS query or raise a new technical DISS query and await a
response before conducting any further work
Warranty
NOTICE
IMPORTANT NOTICE: Please ensure that photographs showing the issues found whilst conducting this TPI are attached to
a new or existing DISS query as detailed below:
•
Photographs showing the actual failure mode
•
Photographs after the repair has been successfully completed
Note: Failure to provide the required information could result in warranty claims being cancelled
Hint: In the event the issue was evident after the control unit was replaced and a new headlamp assembly was fitted, a
photograph of the failure mode after control unit replacement is also required
Warranty type
110 or 910
Damage service number 94 01 - Control unit
Damage service number 94 15 - Headlamp assembly
Damage code
00 40
Bentayga without Auxiliary heater
Time to remove and refit (x1) front wheel arch liner
Labour operation code 66 16 19 01
Time
20 TU
Time to remove and refit (x2) front wheel arch liners
Labour operation code 66 16 20 01
Time
40 TU
NOTICE
Hint: This LOT must only be claimed once in the event the headlamp control unit or headlamp unit was diagnosed as faulty
and all checks were conducted as described within TPI 2054599/-
Diagnosis time
Labour operation code 01 50 00 00
Time
As per ODIS log Must not exceed 10 TU
Time to replace the headlamp control unit
Labour operation code
94 01 19 50
Time
10 TU
Software Update for 23 Model year using GFF code 1500000
Labour operation code 01 50 00 00
Time
As per ODIS log Must not exceed 35 TU
Time to replace the headlamp if issue persists after Control Unit replace
Labour operation code
94 15 19 00
Time
260 TU
Time to align both headlamps
Labour operation code
94 15 16 00
Time
20 TU
Road test
Labour operation code 01 21 00 01
Time
30 TU
Bentayga with Auxiliary heater
Time to remove and refit (x1) front wheel arch liner
Labour operation code 66 16 19 01
Time
20 TU
Time to remove and refit (x2) front wheel arch liners
Labour operation code 66 16 20 01
Time
40 TU
NOTICE
Hint: This LOT must only be claimed once in the event the headlamp control unit or headlamp unit was diagnosed as faulty
and all checks were conducted as described within TPI 2054599/Time to remove and refit the auxiliary heater to gain access to the headlamp control unit
W12 engine
Labour operation code
82 20 19 00
Time
170 TU
V8 Kovomo engine
Labour operation code 82 20 19 20
Time
150 TU
V8 Diesel
Labour operation code 82 20 19 40
Time
170 TU
Diagnosis time
Labour operation code 01 50 00 00
Time
As per ODIS log Must not exceed 10 TU
Time to replace the headlamp control unit
Labour operation code
94 01 19 50
Time
10 TU
Software Update for 23 Model year using GFF code 1500000
Labour operation code 01 50 00 00
Time
As per ODIS log Must not exceed 35 TU
Time to replace the headlamp if issue persists after Control Unit replace
Labour operation code
94 15 19 00
Time
260 TU
Time to align both headlamps
Labour operation code
94 15 16 00
Time
20 TU
Road test
Labour operation code 01 21 00 01
Time
30 TU
Required Parts and Tools
Headlamp control unit - 992 941 592BH
CAUTION
Part numbers can change without notice, please refer to the ETKA parts catalogue to ensure the latest specification part is
ordered/supplied
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TSB/Document ID: 2077922/2
Replacement Service Bulletin Number:
MFR Communication Date: 2025-06-12
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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