Technical product information
Topic

Headlamp Control Unit Replacement | Bentayga and Flying Spur | 20,21,22,24,25,26MY

Market area

Bentley: worldwide (2WBE),China 723 Volkswagen (Anhui) Automotive CO (6723),China 796
VW Import Comp. Ltd (Vico), Beijing (6796)

Brand

Bentley

Transaction
2071933/4
No.
Level

EH

Status

Released for publishing

Release
date

March 23 2026

New customer code

Object of complaint

Complaint type

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

functionality

lighting system, signalling -> exterior illumination ->
main lights

functionality -> uneven

> not
specified <

lighting system, signalling -> exterior illumination ->
main lights

functionality -> partially without
function

> not
specified <

Vehicle data
Bentayga Series and Flying Spur
Sales types

Type MY

Brand Designation Engine code Gearbox code Final drive code

4V1* 2021 E

*

*

*

4V1* 2022 E

*

*

*

4V1* 2024 E

*

*

*

4V1* 2025 E

*

*

*

4V1* 2026 E

*

*

*

Z32* 2025 E

*

*

*

Z32* 2026 E

*

*

*

ZG2* 2020 E

*

*

*

ZG2* 2021 E

*

*

*

Position

ZG2* 2022 E

*

*

*

ZG2* 2023 E

*

*

*

ZG2* 2024 E

*

*

*

Documents
Document name
master.xml
newflyingspurheadlampcontrolmodule.pdf

Technical product information

Transaction No.: 2071933

Headlamp Control Unit Replacement | Bentayga and Flying Spur |
20,21,22,24,25,26MY

Customer statement / workshop findings
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
Or
The control unit has been replaced TWICE previously (see note below)
NOTICE
The headlamp control unit can only be replaced a MAXIMUM of TWO times (per headlamp) If there are
two yellow paint marks on the control units (Figure 1) or the vehicles repair history shows the control units
have been replaced TWICE, a new headlamp assembly is required

/4

Figure 1

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/-

Revision History
TPI 2071933/4 – Extended applicability to 25–26MY vehicles and clarified diagnostic procedure for
determining the appropriate replacement component using the ECU swap method.
TPI 2071933/3 – Warranty accounting information revised
TPI 2071933/2 – The header data has been revised to remove 23 Model Year Bentayga Series

Production change
Not applicable

Measure
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

1. If the headlamp exhibits a malfunction prior to the ECU swap but operates correctly after installing the
ECU from the opposite headlamp, the fault is confirmed to lie within the original ECU.
Proceed with ECU replacement only.

Refer to ElsaPro Rep.Gr 94

Note: In the event the headlamp control unit procedure is not visible within Rep.Gr 94 the operative should
refer to the Bentley Hub searching for the following:
•

New Flying Spur Headlamp Control Module

The procedure will be published within Rep.Gr 94 when available
Hint: The procedure is also attached to this TPI

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

2. If the headlamp continues to malfunction after installing the ECU from the opposite headlamp, the fault is
confirmed to be within the headlamp assembly.
Replace the headlamp assembly

Refer to ElsaPro Rep.Gr 94

3) On completion of the ECU replacement (If required) apply a yellow paint mark as shown in Figure 1 and
/or Figure 2 (depending on if the control unit has been replaced once (Figure 1) or twice (Figure 2)

Figure 1

Figure 2

•

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 accounting instructions
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 18 - 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/Time to replace the headlamp control unit
Labour operation code: 94 01 19 50
Time: 10 TU
Time to replace the headlamp if the control unit has been replaced twice
Labour operation code: 94 15 19 00
Time: 260 TU
Time to align both headlamps
Labour operation code: 94 15 16 00
Time: 20 Time units
Diagnosis time
Labour operation code: 01 50 00 00

Time: As per ODIS log Must not exceed 10 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
Time to replace the headlamp control unit
Labour operation code: 94 01 19 50
Time: 10 TU
Time to replace the headlamp if the control unit has been replaced twice
Labour operation code: 94 15 19 00
Time: 260 TU
Time to align both headlamps
Labour operation code: 94 15 16 00
Time: 20 Time units
Diagnosis time
Labour operation code: 01 50 00 00

Time: As per ODIS log Must not exceed 10 TU
Road test
Labour operation code: 01 21 00 01
Time: 30 TU

Flying Spur
Time to remove and refit (x1) front wheel arch liner
Labour operation code: 66 16 19 01
Time: 30 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 replace the headlamp control unit
Labour operation code: 94 01 19 50
Time: 10 TU
Time to replace the headlamp if the control unit has been replaced twice
Labour operation code: 94 15 19 00
Time: 290 TU
Time to align both headlamps
Labour operation code: 94 15 16 00
Time: 20 TU
Diagnosis time
Labour operation code: 01 50 00 00
Time: As per ODIS log Must not exceed 10 TU
Road test
Labour operation code: 01 21 00 01
Time: 30 TU

Parts information
Headlamp control unit - 992 941 592BA (x1)
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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General Information
The headlamp control unit is accessible from under the front
wheel arch apertures.
Note
The headlamp control unit can only be changed a MAXIMUM
of TWO times per headlamp. If there are already two yellow
reference marks on the back of the headlamp assembly, then
a NEW headlamp assembly complete will be required,
available through ETKA.
Right hand side headlamp control module shown, left hand
side is symmetrically opposite, unless where stated.
_________________________________________________
Caution
Ensure that before removal of the headlamp control unit
that the area immediately around the headlamp control
unit, is clean and free from debris that could enter the
headlamp assembly.
_________________________________________________
_________________________________________________
WARNING
Ensure that the correct personal protective equipment is
worn.
Ensure that the vehicle is fully cooled before commencing
work in this area.
_________________________________________________
Special tools and workshop equipment required
♦

Vehicle tester

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♦

External torx plus socket WT 10670

Torque tightening values
Unless otherwise shown, standard torque values apply. ⇒
/BAS/After Sales Publication/Vehicle electrics/00 - Technical
data, Materials
Removal
–

Remove the relevant front wheelarch liners. Refer to
“Front wheelarch liners - To remove and fit”⇒/BAS/After
Sales Publication/Body/66 - Exterior equipment

–

Remove the two fixings -arrows- that retain the bracket
-1-.

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–

Remove the two fixings -arrows- (4) Nm that retain the
bracket -1-.

Image for illustration purposes only.
–

Disconnect the headlamp assembly harness connector
-1-, then using the External torx plus socket WT 10670
remove the three fixings -arrows- (1.5) Nm, that retain
the headlamp control unit -2-.

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Image for illustration purposes only.
–

Carefully extract the headlamp control unit -1- out from
the headlamp assembly, only enough to gain access to
the harness connector -2-.

_________________________________________________
Caution
Take care NOT to over extend the wires out from the
headlamp assembly, as damage to the wires can result.
_________________________________________________
–

Press the catch -1- in the direction of -arrow-, and at the
same time rotate the harness plug retainer -2- outwards
as shown, enough to allow the harness plug to
disconnect from the control module.

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–

Remove the control module.

Installation

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

Pay attention to the seal -1-, and ensure that there is NO
damage, and that the seal is seated correctly as shown.

–

Re-connect the harness connector -1-, and fully close the
retainer -2-.

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–

When correct retention of the harness connector is
achieved, an audible click will be heard.

–

Re-insert the control module -1- into the headlamp
assembly apertures -highlighted- being careful not to
dislodge the control module seal -2-.

Image for illustration purposes only.
–

Press the control module into the headlamp assembly,
evenly and square.

–

insert the three fixings -arrows- and using the External
torx plus socket WT 10670 torque tighten to (1.5) Nm.

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Image for illustration purposes only.
–

Reconnect the headlamp assembly harness connector -1.

Disregard position -2-.
Note
Once the headlamp control unit has been replaced, suitably
mark the back of the headlamp assembly with a single neat
yellow line.
–

Further assembly required.

–

Upon completion, connect the Vehicle tester and start
ODIS Service:

♦

Select •Guided functions“ and allow to sweep.

♦

Select •D6 or D7“ in the block diagram.

♦

Select •Replace“.

♦

Follow the on screen prompts.

–

Calibrate the matrix headlamps (where fitted). Refer to
“Matrix headlamps – To calibrate”⇒/BAS/After Sales
Publication/Running gear/44 - Wheels, Tyres, Wheel

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alignment
–

Ensure that the operation of the headlamp is checked
and is operating correctly before driving the vehicle on
the road.