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)