NHTSA ID Number: 11028259
Manufacturer Communication Number: 2080375/1
TSB/Document Date: 2026-02-04
Summary
Window Drop Glass Operation | Continental GT/GTC |19-24MY. 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
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TSB/Document ID: 2080375/1
Replacement Service Bulletin Number:
MFR Communication Date: 2026-01-20
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: VISIBILITY/WIPER
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
Technical Service Bulletin
Topic
Window Drop Glass Operation | Continental GT/GTC |19-24MY
Market area
Bentley: worldwide (2WBE),China 796 VW Import Comp. Ltd (Vico), Beijing (6796)
Brand
Bentley
Transaction No. 2080375/1
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
0042 - Driver's 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
New customer code
Object of complaint
Complaint type
Position
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
right
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
right
rear
body attachments and installations -> door opening/closing, window
heating -> short stroke door closing
functionality -> no
function
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 -> automatic window lowering for door opening
functionality -> operation
sequence incorrect
left rear
body attachments and installations -> door opening/closing, window
heating -> automatic window lowering for door opening
functionality -> operation
sequence incorrect
Vehicle data
Continental GT and GTC
Sales types
Type MY
Brand Designation Engine code Gearbox code Final drive code
3S3* 2018 E
*
*
*
3S3* 2019 E
*
*
*
3S3* 2020 E
*
*
*
3S3* 2021 E
*
*
*
3S3* 2022 E
*
*
*
3S3* 2023 E
*
*
*
3S3* 2024 E
*
*
*
3S4* 2019 E
*
*
*
3S4* 2020 E
*
*
*
3S4* 2021 E
*
*
*
3S4* 2022 E
*
*
*
3S4* 2023 E
*
*
*
3S4* 2024 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
front
Technical Service Bulletin
Window Drop Glass Operation | Continental GT/GTC |19-24MY
Transaction No.: 2080375/1
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
Should the issue still be evident after the instructions within this TPI have been conducted, 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
1. Referring to Rep.Gr 27 - Carry out a 12 Volt battery test "WARRANTY TEST" or "ORIG. VW-BATT.
TEST"
NOTICE
VERY IMPORTANT: Save an image of the battery printout (result) as this will be required to be attached
to a new or existing DISS query. Should any issues be evident with the 12 volt battery / system this should
be rectified first before proceeding any further 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 installed as per Rep.Gr 27
2. 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 - Door control module identification / update instructions
NOTICE
The control modules should all be at ‘D’ suffix or all at ‘J’ suffix, replacement of ‘D’ level control modules to
‘J’ level does not fix the problem, replacement of control modules should not be conducted without
permission via DISS, in the event the control modules were replaced without permission all applicable
Warranty claims will be cancelled
– In the event that a control module is suspected as being faulty the operative must request permission
via DISS before replacing any parts
– Do not under any circumstances combine ‘D’ suffix control modules with ‘J’ suffix parts all four control
modules must all have the same suffix
Hint: In the event the software is not at the levels shown in Reference table 1,2,3 and 4 the operative must
conduct the applicable software updates within Section 1 and / or Section 2 and then conduct Section 3
However
In the event the software is at the correct levels as shown in Reference table 1,2,3 and 4 the operative must
conduct Section 3 only
3. Check and if necessary update the applicable door control modules as follows:
CAUTION
Should the control modules NOT be at the latest levels as shown in Reference table 1 and 2 please
conduct the two separate software updates within Section 1 and Section 2 to completion before
proceeding with Section 3
However
In the event the software levels are to specification as shown in Reference table 1 and 2 please only conduct
the software update within Section 2 before proceeding with Section 3
D suffix control modules - Reference table 1
Door control module
Part number
Software version
Target data container
0042 – Drivers door
4M1.959.953.D 0189
V03.935.344.TP
0052 – Passenger door
4M1.959.952.D 0189
V03.935.344.TQ
00BB – Rear driver’s door
4M1.959.955.D 0189
V03.935.344.TR
00BC – Rear passenger door
4M1.959.955.D 0189
V03.935.344.TS
J suffix control modules - Reference table 2
Door control module
Part number
Software version
Target data container
0042 – Drivers door
4M1.959.953.J 0430
V03.935.349.CM
0052 – Passenger door
4M1.959.952.J 0430
V03.935.349.CN
00BB – Rear driver’s door
4M1.959.955.J 0430
V03.935.349.CP
00BC – Rear passenger door
4M1.959.955.J 0430
V03.935.349.CQ
Software update - Front and rear door control modules
•
The closed-circuit voltage of the vehicle must be at least 12.5 V during the update. Connect a
suitable battery charger to the vehicle. For further information refer to the Repair manual
•
During the update switch off all unnecessary consumers (ventilation, seat heater, interior illumination
etc) ensure the main light switch is set to ‘off’ and leave the driver’s door open
•
Because of the highest transmission stability you MUST use the diagnosis interface VAS 6154 (WiFi
diagnostic tool) ONLY in USB operation or the cable-connected VAS 5055 for the reprogramming
(updating) of control modules. If these units are not available, the diagnosis interface VAS 5054 (A)
can also be used in USB mode
•
Do Not under any circumstances use a Bluetooth connection to conduct the reprogramming
(updating) of any control modules
4. Referring to Figure 1 - Within the Special functions tab - Select SVM - Code Input (Point A)
• Select Perform test (Point B)
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