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NHTSA ID Number: 11028264

Manufacturer Communication Number: 2062184/10

TSB/Document Date: 2026-02-04


Summary

Electronic Parking Brake (EPB) functionality issues. The following issues could be evident during PDI or found whilst in service: • Electronic Parking Brake (EPB) found not operating to specification • EPB may not hold the car effectively • Parking brake components showing signs of wear • Parking brake warning light may also be evident within the DIP, stating ‘Parking brake fault detected. Stop the vehicle in a safe place and refer to the owner’s manual.’


Technical Service Bulletin
Topic

Electronic Parking Brake (EPB) functionality issues

Market area

BentleyeBay logo: worldwide (2WBE),China 759 AudieBay logo China Beijing (6759),China 796 VWeBay logo Import
Comp. Ltd (Vico), Beijing (6796)

Brand

BentleyeBay logo

Transaction
2062184/10
No.
Level

EH

Status

Released for publishing

Release
date

Jan 27, 2026

Diagnostic trouble codes

Fault
symptom

Storage
state

Diagnostic address

Diagnostic trouble code

0003 - Brake
electronics

C10BCF6: Left parking brake motor Engine speed
implausible

static

0003 - Brake
electronics

C12E2F2: Parking brake motor right Engine speed
implausible

static

0003 - Brake
electronics

C10BCF9: Left parking brake motor Insufficient
clearance

static

0003 - Brake
electronics

C12E2F6: Parking brake motor right Insufficient
clearance

static

0003 - Brake
electronics

C10E1F2: Parking brake motors Positions not plausible

static

0003 - Brake
electronics

C124654: Electromechanical parking brake no basic
setting

static

0003 - Brake
electronics

C10BDF1: Right parking brake motor Upper travel limit
exceeded

static

0003 - Brake
electronics

C10BCF1: Left parking brake motor Upper travel limit
exceeded

static

New customer code

Object of complaint

Complaint type

chassis -> brakes, brake regulation -> electronic parking brake (EPB)

functionality ->
no function

information, navigation, communication, entertainment -> warning display
symbols -> parking brake warning display

functionality ->
activates

Position

Vehicle data
ContinentaleBay logo GT/GTC and Flying Spur
Sales types

Type MY

Brand Designation Engine code Gearbox code Final drive code

3S3* 2018 E

*

*

*

3S3* 2019 E

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*

*

3S3* 2020 E

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*

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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

*

*

*

Z23* 2025 E

*

*

*

Z23* 2026 E

*

*

*

Z24* 2025 E

*

*

*

Z24* 2026 E

*

*

*

Z32* 2025 E

*

*

*

Z32* 2026 E

*

*

*

ZG2* 2020 E

*

*

*

ZG2* 2021 E

*

*

*

ZG2* 2022 E

*

*

*

ZG2* 2023 E

*

*

*

ZG2* 2024 E

*

*

*

Documents
Document name
master.xml

Technical Service Bulletin
Electronic Parking Brake (EPB) functionality issues

Transaction No.: 2062184/10
Release date: Jan 27, 2026

Condition

The following issues could be evident during PDI or found whilst in service

Electronic Parking Brake (EPB) found not operating to specification

EPB may not hold the car effectively

Parking brake components showing signs of wear

Parking brake warning light may also be evident within the DIP, stating ‘Parking brake fault detected.
Stop the vehicle in a safe place and refer to the owner’s manual.’

NOTE: One or a combination of the following DTC’s may also be evident

DTC

Description

C10E1F2 Parking brake motors Positions not plausible
C10BCF1 Left parking brake motor Upper travel limit exceeded
C10BDF1 Right parking brake motor Upper travel limit exceeded
C124654

Electromechanical parking brake no basic setting

C10BCF9 Left parking brake motor Insufficient clearance
C12E2F6

Right parking brake motor Insufficient clearance

C10BCF6 Left parking brake motor Engine speed implausible
C12E2F2 Right parking brake motor Engine speed implausible

Technical Background
The issues described can be evident due to the car being driven in Transport mode with the EPB applied
during the Transit process
Or
In some cases similar symptoms may be seen whilst in service

Revision history TPI - 2062184/10

Removed reference to TPI 2071166 and added instructions to clean the EPB pads, adjust the air gaps,
and retest the system. Advised that a DISS ticket should be raised with all relevant diagnostic
information if the fault persists.

Production Solution
-

Service
1. Carry out a full inspection of the (Electronic Parking Brake EPB) system including the following
components:

Right and left hand (EPB) Actuators

Right and left hand rear brake shoes (EPB) - See example shown in Figure 2

Figure 2

Right and left hand rear brake discs - See example shown in Figure 3

Figure 3

If there is no damage, refer to steps 2-5 below.

If damage is identified, raise a full DISS technical query and include all information outlined in Step 6.

2. Clean the brake shoes (EPB)
a. Remove the brake callipers as per ElsaPro repair group 43 (do not disconnect hydraulic lines unless
required).
b. Remove the EPB brake shoes from the calliper. Refer to ElsaPro Repair Group 43.
c. Inspect shoes for contamination (dust, debris, corrosion).
d. Clean the shoe surfaces and the EPB mechanism using a suitable brake cleaner.
e. Ensure all sliding surfaces are free from corrosion and move freely.
f. Reinstall or replace shoes if worn beyond specification.

3. Adjust the Air Gap
a. With the EPB brake shoes installed, adjust the parking brake air gaps according to the specification in
the workshop manual. Refer to ElsaPro Repair Group 43 ‘EPB Maintenance mode’
b. Ensure that both sides have equal and correct air gaps.

c. Confirm actuator movement is smooth and unobstructed.

4. Reassemble
a. Refit the brake callipers and torque all fasteners to the specified values.
b. Reinstall wheels and torque wheel bolts correctly.
c. Lower the vehicle.

5. Retest the System
a. Cycle the EPB through apply and release functions several times.
b. Use the diagnostic tester to run an EPB calibration/learn function if required by the model.
c. Confirm no warning messages are present and that the EPB applies/releases normally.
d. Check for even operation on both sides.

6. Information required for the full Technical DISS query if required.

IMPORTANT NOTE: Please attach the following to a new or existing full technical DISS query

Photographs/videos of the (EPB) actuator(s) must be attached to the DISS query in all cases

Request: Please also include any customer feedback regarding when the issue occurs as follows:

During an ‘Auto hold’ event

During start up/initial pull away

Whilst driving

On application of the parking brake

On release of the parking brake

How does the customer use the (Electronic Parking brake) EPB? For example:

- Is the vehicle parked without applying the EPB being applied ( ‘P’ gear selection only)

Other (please specify on the new or existing DISS query)

Comments

Please also ensure the following information is requested and/or discussed with the customer

Has the customer ever utilised the emergency stop function of the EPB switch?

Are there any noticeable noises or driveability issues which could indicate the EPB has been sticking
on?

Has there been any occasions where the EPB has not disengaged as expected / binding / sticking?

Other (please specify on the new or existing DISS query)

Comments

No further work should be conducted unless authorisation is received from Product Support via the open
DISS query

Warranty

VERY IMPORTANT: Any Damaged parts that are replaced during PDI (including discs if deemed necessary)
MUST BE assigned to Transit damage
Retailers MUST ensure that any parts and labour claims are made against Transit damage within 72 hours
of receiving the vehicle

Warranty type

110 or 910

Damage Service Number
Damage Code

46 23
00 35

Time to remove and refit both rear wheels
Labour Operation Code 44 05 20 00
Time

10 TU

Time to remove and refit both (EPB) actuators
Labour Operation Code 46 85 20 50
Time

20 TU

Time to remove and refit both rear brake discs
Labour Operation Code 46 53 20 50

Time

140 TU

Time to remove and refit both rear brake shoes
Labour Operation Code 46 23 20 50
Time

20 TU

Time to adjust rear brake shoes
Labour Operation Code 46 23 16 50
Time 30 TU
Time to perform GFF (Guided Functions)
Labour Operation Code 01 50 00 00
Time 10 TU

Required Parts and Tools
Refer to the ETKA parts catalogue

1

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TSB/Document ID: 2062184/10

Replacement Service Bulletin Number:

MFR Communication Date: 2026-01-27

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: SERVICE BRAKES

MFR Component System:

MFR Component Subsystem:


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