Technical Service Bulletin
Topic

Software Update for Headlamp Operation Issues | Bentayga Series | 24MY

Market area

Bentley: worldwide (2WBE),China 796 VW Import Comp. Ltd (Vico), Beijing (6796)

Brand

Bentley

Transaction No. 2078332/1
Level

EH

Status

Released for publishing

Release date

Jul 21, 2025

New customer code

Object of complaint

Complaint type

power, vehicle electrical system, data transfer -> power
supply

functionality

lighting, signaling -> exterior lighting -> low beams

functionality -> irregular

> no
instruction <

lighting, signaling -> exterior lighting -> low beams

functionality -> partially out of
order

> no
instruction <

Vehicle data
24MY Bentayga Series
Sales types

Type MY

Brand Designation Engine code Gearbox code Final drive code

4V1* 2024 E

*

*

*

ZV1* 2024 E

*

*

*

Documents
Document name
master.xml

Position

Technical Service Bulletin
Software Update for Headlamp Operation Issues | Bentayga Series | 24MY

Transaction No.: 2078332/1
Release date: Jul 21, 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
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

The complete headlamp assembly should only be replaced if the required software update 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 – Continue with the onward instructions.
No - Conduct TPI 2054599/- Hint: In the event the issue is still evident after conducting TPI 2054599/-please
continue with the onward instructions.

To resolve the fault, complete a Baseline integration Level (BiL) software update to level 5.5, see instructions
below.

BiL 5.5 Software Update Instructions
CAUTION
The Bentley ODIS-S Brand Version MUST be at least 2.35.4 (or higher)

CAUTION
Before conducting the onward instructions, the operative MUST recheck the communication method in
ODIS and ensure that DoIP is selected before proceeding. Within ODIS-S, perform the following:
– On the right hand side, select the “Admin” tile (Within ‘Operating modes’)
– Select “GFF sequence” (Within ‘General information’ section)
– Under the “Selection of Communication path” drop-down menu, select “Only permit DoIP
communication”.

CAUTION
DO NOT, UNDER ANY CIRCUMSTANCES, ATTEMPT TO CONDUCT THE SOFTWARE UPDATE VIA
THE CAN NETWORK. ONLY DoIP SHOULD BE USED WHEN PERFORMING THE SVM UPDATE.

CAUTION
You MUST ONLY use the Diagnosis Interface VAS 6154 (WiFi Diagnostic Tool) in USB OPERATION or
the CABLE-CONNECTED VAS 5055 for the reprogramming (updating) of the control units.
– If neither of these units are available, the VAS 5054 (A) may be used in USB MODE.
– DO NOT under any circumstances use a Bluetooth connection to conduct the reprogramming
(updating) of any control units.

Battery Charger
CAUTION
ONLY Chargers that meet the approved specification on the Mandatory Equipment List (available on the
Bentley Hub) MUST be used.
– The charger must be set to a mode where a MINIMUM of 90a is supplied to the battery during the
process. Typically, this is known as ‘Power Supply Mode’ or ‘DIAG+ Mode’.
– A voltage of exactly 13.8v must be set and maintained throughout the process.
– Please refer to the manual to ensure that these requirements are met before beginning any SVM
update

Preparation Before Update
WARNING
Vehicles using a High voltage system MUST only be worked on by suitably qualified personnel

CAUTION
During the update, switch off all unnecessary consumers. For example, ventilation, seat heaters, interior
illumination, exterior lights ect.

Conduct a full guided fault find of the vehicle.
Address any unknown faults BEFORE conducting any of the below updates, referencing the applicable TPI.
Ensure that the correct battery charger is connected to the vehicle. – Refer to the ‘’Battery Charger’’ Section
above.

SVM Code Input (Vehicle Baseline)
CAUTION
At this point, a suitable battery charger must be connected to the vehicle.

1. After a suitable battery charger is connected, select the Special Functions tab.

2. Navigate to ‘SVM – Code Input’ and enter the SVM Code.
a. If the vehicle is any variant of a Bentayga EWB, enter the SVM Code: “SE24V1BIL5501”.
b. If the vehicle is any variant of a Bentayga SWB, enter the SVM Code: “SE24V0BIL5501”.

NOTICE
Ensure that the Mirror server is connected when running the SVM code.

3. On the next screen, ensure that the SVM code is correct.

4. You will be shown the communication type. This MUST be set to “DoIP”.
a. If “DoIP” is not selected, select option 3 until the communication type is set to “DoIP”.

5. Ensure that the diagnostic device remains connected for the duration of the update.

6. Follow all on-screen prompts until the program ends.

a. You may be required to perform various ignition cycles during the test so ensure that you are situated
around the vehicle/ODIS-S device for the full update.

7. If you receive the error message “8118”:
a. Switch off the battery charger
b. Switch off the ignition
c. Remove the VCI
d. Close all doors
e. Wait 15 minutes
f. Retry the SVM code.
g. If the error is received again, allow the vehicle to reach a full CAN-BUS sleep.
h. Remove the 12V battery negative for 15 minutes and return to step f (Refer to ElsaPro Repair Group
27 ‘Battery – To disconnect and connect’).

NOTICE
If you encounter any errors during the update, or if you receive the ‘8118’ error as per step 8 more than
two times, please raise a full technical DISS query.
– Workshop findings: Give a summary of the error encountered and ensure that the latest guided fault
finding log is submitted online.

8. If the SVM code completes successfully, ODIS should display as per the image above.

10. If you encounter any errors during the update, please raise a FULL TECHNICAL DISS query. Include the
following:
a. TPI 2078332/ has been conducted
b. Workshop Findings: Give a summary of the error encountered and ensure that the latest Guided Fault
Finding log is submitted online.

11. After successful completion of the update, perform the following.
a. Turn off the ignition
b. Remove all equipment from the car (Diagnostic tester/dongle, battery charger, keys)
c. Close all doors, windows, bonnet and boot lid
d. Lock the vehicle to perform a CAN-BUS sleep (wait 15 minutes).

12. After 15 minutes, unlock and open the driver’s door. Turn on the ignition, re-connect the battery charger
and diagnostic dongle.

13. Re-run guided fault finding and clear DTCs. If any faults are present, refer to TPI 2075920. If any other
faults are present, please raise a full DISS query with a full GFF log uploaded online stating the error
encountered.

14. 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

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.

If the fault is not resolved after the BiL 5.5 update has been conducted, the operative may be instructed via
DISS to replace the complete headlamp assembly as detailed within Rep.Gr 94.

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 software update was conducted and a new headlamp
assembly was fitted, a photograph of the failure mode after control unit replacement is also required
Warranty type
Damage service number
Damage code

110 or 910
94 15 - Headlamp assembly
00 40

Diagnosis time
Labour operation code
Time

01 50 00 00
As per ODIS log Must not exceed 10 TU

BiL 5.5 Software Update
Labour operation code
Time

01 50 00 00
As per ODIS log Must not exceed 50 TU

A 100TU allowance may be claimed only if a SVM update fails to complete successfully. This is intended to
cover additional diagnostic or recovery work directly resulting from the failed update. It must not be used for
unrelated delays or issues.
ODIS logs must be attached to a Technical DISS ticket for evidence of failure. Claims without valid
documentation will be rejected. Warranty Adjudicators will review associated ODIS logs and DISS queries to
determine actual software update time.
Time to replace the headlamp if issue persists after Software Update
Labour operation code
Time

94 15 19 00
260 TU

Time to align both headlamps
Labour operation code
Time

94 15 16 00
20 TU

Road test
Labour operation code
Time

01 21 00 01
30 TU

NOTICE
Hint: This LOT must only be claimed once in the event the headlamp unit was diagnosed as faulty and all
checks were conducted as described within TPI 2054599/-

Required Parts and Tools
CAUTION
Part numbers can change without notice, please refer to the ETKA parts catalogue to ensure the latest
specification part is ordered/supplied