Technical product information
Topic
Market
area

Bentley dynamic ride system warning - DTC P0B2500: Hybrid/EV Battery "A" Voltage low' stored (48 volt system)
Australia E04 Bentley rest Asia and Australia (6E04),China 723 Volkswagen (Anhui) Automotive CO (6723),China 796 VW Import
Comp. Ltd (Vico), Beijing (6796),Germany E02 Bentley rest Europe (6E02),Japan E03 Bentley Japan (6E03),Korea, (South) E08
Bentley South Korea (6E08),United Arab Emirates E06 Bentley Middle East and Africa (6E06),United Kingdom E01 Bentley UK
(6E01),United States E05 Bentley USA and rest America (6E05)
Bentley

Brand
Transaction
2068946/4
No.
Level
EH
Status
Approval
Release
date
Event memory entries

Diagnostic address
Event memory entry
Fault type Fault status
0021 - Battery management 2 P0B2500: Hybrid/EV Battery "A" Voltage Low
static
0021 - Battery management 2 P0B2500: Hybrid/EV Battery "A" Voltage Low
Intermittent
New customer code
Object of complaint
running gear -> shock absorber/suspension control -> roll compensation
running gear -> adaptive suspension, pitch and roll compensation
information, navigation, communication, entertainment -> symbolic control indicators -> warning lamp
for electronic stabilisation programme (ESC)

Vehicle data
Bentayga/New Continental GT/C and New Flying Spur
Sales types
Type
3S3*
3S3*
3S3*
3S3*
3S3*
3S3*
3S4*
3S4*
3S4*
3S4*
3S4*
4V1*
4V1*
4V1*
4V1*
4V1*
4V1*
4V1*
ZG2*
ZG2*
ZG2*
ZG2*
ZG2*
ZV1*

MY
2018
2019
2020
2021
2022
2023
2019
2020
2021
2022
2023
2017
2018
2019
2020
2021
2022
2023
2019
2020
2021
2022
2023
2023

INTERNAL

Brand Designation Engine code Gearbox code Final drive code
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*

Complaint type
functionality -> defective
function sequence
functionality
functionality -> activates

Position

Documents
Document name
master.xml

INTERNAL

Technical product information
Bentley dynamic ride system warning - DTC P0B2500: Hybrid/EV Battery "A" Voltage low' stored (48 volt system)

Transaction No.: 2068946/4

Customer statement / workshop findings
Customer statement:
‘Bentley dynamic ride system: fault’ displayed within the Drivers Instrument Panel (DIP)
Workshop findings:
DTC ‘P0B2500: Hybrid/EV Battery "A" Voltage low' stored within address 21-Battery Energy Control Module 2

Technical background
Possible internal fault with super capacitor
•

In the event that DTC P0B2500 is evident the operative must follow the steps within the Measure section to completion

NOTICE
Note for vehicles which have DTC P0B2500 evident during PDI: The instructions within the Measure section must be conducted to completion
regardless of vehicle status (PDI or post vehicle handover) Do Not erase the DTC and handover the vehicle as DTC P0B2500 can return
Revision history - 2068946/3
•

Header data updated to request the super capacitor harness connector and super capacitor positive and negative terminals are checked
for security as detailed within the Measure section of this TPI

Production change
Not applicable

Measure
WARNING
This vehicle uses a 48 volt system, please refer to "48 volt system — safety precautions" before working on this system
1) Referring to Rep.Gr 27 - Deactivate the 48 volt system - Refer to 48 volt system - To activate and deactivate
2) eferring to Rep.Gr 27 - Check the security of the super capacitor positive and negative terminals (Figure 1) as follows:
•

Remove the caps (A) from the terminals

•

Check the security of the positive and negative terminals

Figure 1

INTERNAL

3) Referring to Figure 2 - Check the security of the harness connector

Figure 2
4) Referring to Rep.Gr 27 - Activate the 48 volt system. Refer to 48 volt system - To activate and deactivate
5) In the event the super capacitor positive and negative terminals were found not to specification the operative must conduct step 6 and steps 7
However
In the event the super capacitor positive and negative terminals were secure please go directly to step 7
6) Conduct a short road test
7) Read the following MVB’s to check the difference between the highest cell voltage and the lowest cell voltage (Figure 3)
21-Battery Energy Control Module 2 -→ MVB -→ IDE08217 and IDE8218

Figure 3
•

If there is a difference of 0.5v or more between the highest cell voltage and lowest cell voltage and the fault code ‘P0B2500:
Hybrid/EV Battery "A" Voltage low' is stored in address 21-Battery Energy Control Module 2 - Referring to the applicable
Rep.Gr 27 - Replace the Super capacitor

INTERNAL

Warranty accounting instructions
Warranty type 110 or 910
Damage service number 93 50
Damage code 00 40
Bentayga
Labour operation code 93 50 19 00
Time - 20 TU
Diagnosis time - 01 50 00 00 as per ODIS log (Must not exceed - 10 TU)
Power electronics removed and installed - 93 50 19 50 - 10 TU
New Flying Spur
Labour operation code - 93 50 19 00
Time - 20 TU
Diagnosis time - 01 50 00 00 as per ODIS log (Must not exceed - 10 TU)
Power electronics removed and installed - 93 50 19 50 10 TU
New Continental GT/C
Labour operation code 93 50 19 00
Time - 20 TU
Diagnosis time - 01 50 00 00 as per ODIS log (Must not exceed - 10 TU)
Power electronics removed and installed - 93 50 19 50 - 10 TU
All models
De-energise and re-energise the high voltage system - 93 10 00 00 - 30 TU
Time to conduct a short road test
Labour Operation Code 01 21 00 99
Time 25 TU

Parts information
Refer to the ETKA parts catalogue

INTERNAL