Technical Service Bulletin
Topic

Window Drop Glass Operation | Continental GT/GTC | 25-26MY

Market area

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

Brand

Bentley

Transaction No. 2080372/1
Level

EH

Status

Released for publishing

Release date

Jan 20, 2026

Diagnostic trouble codes

Fault
symptom

Storage
state

Diagnostic address

Diagnostic trouble code

00BB - Rear drivers side door
electronics

B148754: Window regulator motor no
basic setting

Intermittent

0052 - Passenger's door electronics

B148754: Window regulator motor no
basic setting

Intermittent

00BC - Rear passenger side door
electronics

B148754: Window regulator motor no
basic setting

Intermittent

0042 - Driver's door electronics

B148754: Window regulator motor no
basic setting

Intermittent

New customer code

Object of complaint

Complaint type

Position

body attachments and installations -> door opening/closing, window
heating -> automatic window lowering for door opening

functionality -> operation
sequence incorrect

right
rear

body attachments and installations -> door opening/closing, window
heating -> automatic window lowering for door opening

functionality -> operation
sequence incorrect

left
front

body attachments and installations -> door opening/closing, window
heating -> short stroke door closing

functionality -> no
function

left
front

body attachments and installations -> door opening/closing, window
heating -> short stroke door closing

functionality -> no
function

left rear

body attachments and installations -> door opening/closing, window
heating -> automatic window lowering for door opening

functionality -> operation
sequence incorrect

left rear

body attachments and installations -> door opening/closing, window
heating -> short stroke door closing

functionality -> no
function

right
front

body attachments and installations -> door opening/closing, window
heating -> automatic window lowering for door opening

functionality -> operation
sequence incorrect

right
front

body attachments and installations -> door opening/closing, window
heating -> short stroke door closing

functionality -> no
function

Vehicle data
Continental GT/GTC
Sales types

Type MY

Brand Designation Engine code Gearbox code Final drive code

Z23* 2025 E

*

*

*

Z23* 2026 E

*

*

*

Z24* 2025 E

*

*

*

Z24* 2026 E

*

*

*

Documents
Document name
master.xml
retailer_glass_measurement_procedure_gt.pdf
retailer_glass_measurement_procedure_gtc.pdf
retailer_glass_reset_procedure_gt_gtc.pdf

right
rear

Technical Service Bulletin
Window Drop Glass Operation | Continental GT/GTC | 25-26MY

Transaction No.: 2080372/1
Release date: Jan 20, 2026

Condition
•

Incorrect operation / function of the front and / or rear window drop glass

•

Front and / or rear drop glass fails to open / close or attempts to close and re-opens once contact has
been made between the glass and applicable seal

•

DTC for window regulator motor no basic setting B148754 evident within any of the 4 window control
modules (diagnostic address 42, 52, BB and BC) for loss of basic settings

Technical Background

IMPORTANT NOTE: Aftermarket window tinting can affect the operation of the windows, please advise
customers the onward instructions cannot be applied until the aftermarket tinting is removed
CAUTION
The operative must ensure the latest version of this TPI is obtained using the applicable VIN as TPI
versions change without notice

Should the issue still be evident after the instructions within this TPI have been conducted or if this is a
repeat repair; the operative must raise a new DISS query or respond via the existing DISS query and await
feedback before conducting any further work.

The answer to the following question must be included within the DISS query
Did the drop door glass operational issue occur when opening or closing the door?
Or
Whilst operating the applicable window?
NOTICE
NOTE TO PRODUCT SUPPORT: In the event a DISS query is received with a complaint relating to drop
glass operational issues after the instructions within this TPI have been conducted to completion and the
issue is still evident, please second level the DISS query to the Body and Trim Senior Engineer and await
feedback before responding to the retailer

Production Solution
The Bentley continuous improvement policy has been implemented within the manufacturing process, the
required improvements have been utilised within this TPI

Service

VERY IMPORTANT: To eliminate a repeat repair the instructions within the Measure section and attached
PDF instructions must be conducted on the front and rear drop door glass - left and right hand side to
completion
ALL steps MUST be conducted (DO NOT IGNORE ANY OF THE STEPS)
ALL STEPS MUST BE CONDUCTED TO COMPLETION IN THE EXACT ORDER SHOWN
NOTICE
Should any issues be evident with the 12 volt battery / system this should be rectified first before
proceeding any further

The window closing time results (as below) must be attached to a new or existing DISS query
VERY IMPORTANT: Do not proceed with the time measurement request instructions unless the battery is
confirmed to be within specification (battery test) a 12 volt battery charger must also be attached as per Rep.
Gr 27

1. How did the issue occur for the customer?
•

Opening / closing the front door

•

Operating the window from the master switch pack (driver’s door)

•

Operating the window from the respective switch pack

•

Opening / closing the convertible roof (only applicable for convertibles)

Comments

Section 1 – Software update to the rear door control modules 00BB and 00BC – Short drop function
elimination

2. Perform the Software update to the rear door control modules 00BB and 00BC – Short drop function
elimination, noting the information below:
25MY ONLY If campaigns ED18, ED54, ED55, ED56 have not been completed on the vehicle, perform the
software update as described in the campaign and ENSURE ALL STEPS ARE COMPLETED FULLY.
NOTICE
25MY ONLY: IF CAMPAIGNS ED18, ED54, ED55, ED56 HAVE ALREADY BEEN COMPLETED ON THE
VEHICLE PROCEED TO SOFTWARE UPDATE BIL 105.7.2.

Once complete, refer to step 3 to perform SVM updates to raise the vehicles baseline integration level (BiL)
software to 105.7.2.

26MY ONLY If campaigns ED59, ED65 have not been completed on the vehicle, perform the software
update as described in the campaign and ENSURE ALL STEPS ARE COMPLETED FULLY.
NOTICE
26MY ONLY: IF CAMPAIGNS ED59, ED65 HAVE ALREADY BEEN COMPLETED ON THE VEHICLE.
Once complete, refer to section 2 step 18 ‘thorough check of all Window / door seals’.

SVM Applicability Table

25MY SVM Codes
SVM Code Input 1
372BIL10572HV01 (Continental GT/GTC)
373BIL10572HV01 (Flying Spur)
SVM Code Input 2
372BIL1057201 (Continental GT/GTC)
373BIL1057201 (Flying Spur)

Software Update Instructions (BIL 105.7.2)
CAUTION
The Bentley ODIS-S Brand Version MUST be at least 2.35.9 (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 14.8v 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.

High Voltage Shutdown
WARNING
De-energise the high-voltage system via ODIS-S. Refer to ElsaPro, Repair Group 93 – “De-energising

high-voltage system” to do so.

SVM Code Input 1
CAUTION
At this point, a suitable battery charger must be connected to the vehicle.

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

4. Navigate to ‘SVM – Code Input’ and enter the applicable SVM Input 1 code if required from the SVM
applicability table.

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

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

6. 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”.

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

8. 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.

9. If you encounter any errors during the update, please refer to TPI 2078962 - ‘ODIS Error Message – Best
Practice When Performing Baseline (BiL) Updates’.
a. Please raise a FULL TECHNICAL DISS query.
b. Customer Statement: “2080372 Support”
c. Workshop Findings: Give a summary of the error encountered and ensure that the latest Guided FaultFinding log is submitted online.

10. Read the identification data from each ECU in the table below and verify that software versions match
the target.
Right click relevant control unit > Guided Functions > Read Identification Data

Diagnostic Address

ECU name

Target Software version

008C

BMC

207

06D0

BJB

207

8104

DC/DC Converter

0010

0008

HVAC

850

If the software does not match the target software. Rerun SVM code input, If the software version cannot be
corrected.
a. Please raise a FULL TECHNICAL DISS query.
b. Customer Statement: “2080372 Support”
c. Workshop Findings: Give a summary of the error encountered and ensure that the latest Guided FaultFinding log is submitted online.

SVM Code Input 2
11. Navigate to ‘SVM – Code Input’ and enter the applicable SVM Input 2 code if required from the SVM
applicability table.

12. Follow the steps 3-8.

13. If you encounter any errors during the update, please refer to TPI 2078962 - ‘ODIS Error Message – Best
Practice When Performing Baseline (BiL) Updates’.
a. Please raise a FULL TECHNICAL DISS query.
b. Customer Statement: “2080372 Support”
c. Workshop Findings: Give a summary of the error encountered and ensure that the latest Guided Fault
Finding log is submitted online.

14. 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).

WARNING
Re-energise the high-voltage system via ODIS-S. Refer to ElsaPro, Repair Group 93 – “Re-energising
high-voltage system” to do so.

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

16. 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.

17. If 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.

Section 2 - Rectification / Check Instructions
18. Conduct a thorough check of all Window / door seals for the following:
•

Damage

•

Splits

•

Tears

•

Misalignment

•

Incorrectly fitted / located

•

Drop glass seal deformation (see Figures 1 and 2 as examples)

Figure 1

Figure 2
NOTE: Any issues found with the window seals must be rectified before conducting the remaining steps

19. IMPORTANT: Following the instructions in the attached PDF, the operative must complete all
measurement checks and make any necessary adjustments before proceeding to Section 3.

20. IMPORTANT: If this is a repeat repair, involves scratch damage, or if window measurements are
significantly out of specification, refer to the attached reset procedure PDF.

NOTICE
Please ensure all steps are followed within the attached glass check / measurement PDF documents, the
operative should be aware there is (x1) document for Continental GT and document for Continental GTC
please ensure the correct document is used depending on vehicle type

Ensure all required measurements are attached to a new or existing DISS query
NOTICE
If not already done so, review eAcademy Digital Learning HUB videos on Glass Setting Procedures for GT
/ GTC before proceeding to ensure accurate and repeatable measurements are being made

Section 3 – Final Checks
21. VERY IMPORTANT - Referring to Rep.Gr 64 - Side glass - To initialise
Hint: Ensure all windows, sunroof and convertible roof (where applicable) are fully closed before conducting
the water leak check

22. Conduct a water leak check to ensure that water is not leaking into the vehicles interior
•

Water leaks must be resolved before returning the vehicle to the customer
CAUTION

Extra care must be taken to ensure the interior trim is suitably protected, any water which enters the
vehicle due to a leak must be dried / cleaned immediately

23. Conduct a short road test to check for any wind noise related issues
CAUTION
Wind noise issues must be resolved before returning the vehicle to the customer

24. Raise a technical DISS query ensuring the following is attached
•

Explanation of the usage conditions when the issue occurred

•

Completed final glass measurements (Post reset / readjust)

•

Images of any issues found with seals

Should the issue still be evident after conducting the steps above the operative must raise a new DISS query
or respond via the previously opened DISS query and await feedback before conducting any further work
NOTICE
NOTE TO PRODUCT SUPPORT: In the event a DISS query is received with a complaint relating to drop
glass operational issues after the instructions within this TPI have been conducted to completion and the
issue is still evident, please second level the DISS query to the Body and Trim Senior Engineer and await
feedback before responding to the retailer

Warranty
Warranty type: 110 or 910

Damage service number: 64 38
Damage code: 00 12
Time to conduct initial checks
Labour operation code – 64 38 02 00
Time – 15 TU
Time to conduct window seal checks
Labour operation code – 57 63 01 01
Time – 20 TU
Time to conduct the front and rear glass set procedure (left and right hand side)
Labour operation code – 64 40 16 01
Time – 620 TU
Time to conduct motor-to-door ECU feed wires replacement
Labour operation code – 97 09 41 51
Time – 30 TU
Water leak test
Labour operation code – 64 38 01 99 (Use this code when conducting the water leak test)
Time – 20 TU
Post repair road test
Labour operation code – 01 21 00 01
Time – 30 TU
Time to perform SVM Update
Labour Operation Code: 01 51 00 00
Time: As per ODIS log (Must not exceed 100 TU)
Additional Time Allowance
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 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.

Required Parts and Tools
Reference ETKA where required

Retailer Glass Reset Procedure for
Continental GT/GTC
BY634/5

INTERNAL

Introduction
In instances of multiple window drop concerns it has been found that to achieve the glass set specification, some