2066246/3

Technical product information
Bentayga/New Flying Spur - DTC P0C4A00 Hybrid/EV Battery Pack Coolant Pump "A" Control Performance within address 8C
Australia E04 Bentley rest Asia and Australia (6E04),China 796 VW Import Comp. Ltd (Vico), Beijing (6796),Germany E02 Bentley
rest Europe (6E02),Japan E03 Bentley Japan (6E03),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)
Topic
Market
area
Brand
Transaction
No.
Level
Status
Release
date
Bentley
2066246/3
EH
Approval
Event memory entries
Diagnostic address
Event memory entry
Fault type Fault status
008C - Hybrid battery management P0C4A00: Hybrid/EV Battery Pack Coolant Pump "A" Control Performance
Intermittent
008C - Hybrid battery management P0C4A00: Hybrid/EV Battery Pack Coolant Pump "A" Control Performance
static
New customer code
Object of complaint
electrical power, electric system, data transfer -> power supply
electrical power, electric system, data transfer -> battery management -> charging highvoltage battery
Vehicle data
Bentayga Hybrid
Sales types
Type
4V14F9
4V14F9
4V14F9
4V14F9
4V14F9
MY
2019
2020
2021
2022
2023
Brand Designation Engine code Gearbox code Final drive code
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*
New Flying Spur Hybrid
Sales types
Type
ZG23GB
ZG23GB
ZG25GB
MY
2022
2023
2023
Brand Designation Engine code Gearbox code Final drive code
E
*
*
*
E
*
*
*
E
*
*
*
Documents
Document name
master.xml
INTERNAL
Complaint type
functionality
functionality -> defective function
sequence
Position
Technical product information
Transaction No.: 2066246/3
Bentayga/New Flying Spur - DTC P0C4A00 Hybrid/EV Battery Pack Coolant Pump "A" Control Performance within
address 8C
Customer statement / workshop findings
Customer statement
•
Speed limitation noticeable when driving in EV mode (Restricting the vehicle speed to approximately 30mph/48kph) - Refer also to the
video on the Bentley Hub referencing TPI 2066246/-
•
No other warnings are evident within the DIP
Workshop findings
•
DTC P0C4A00 Hybrid/EV Battery Pack Coolant Pump "A" Control Performance within Address 8C Battery Regulation Control Unit
Technical background
VERY IMPORTANT: This vehicle uses a High voltage system and MUST only be worked on by suitably qualified
personnel
VERY IMPORTANT: Please ensure all guidelines within the repair manual are strictly followed before and whilst
conducting any work on vehicles with a High voltage system
In the event the issue is as described within the Customer statement/Workshop findings section, refer to the instructions
within the Measure section of this TPI
Revision history
TPI 2066246/2 - Additional details added within the Measure section step 4 regarding the location of J1141 high Voltage battery coolant
pump relay
Production change
-
Measure
1) Referring to Rep.Gr 93 - Carry out an Inspection and classification of the Hybrid battery unit AX1
VERY IMPORTANT: In the event that the classification result of the battery is ‘Normal’ the operative should conduct the
remaining steps of this TPI from step 2
However
If the classification result of the battery is either ‘Danger’ or ‘Warning’ then move the car to the quarantine area and raise a
DISS immediately, the operative MUST NOT continue with any other work unless instructed via the open DISS query
2) Run a full diagnostic log and check If DTC’s are present in 8C Battery Regulation Control unit. If P0C4A00 DTC is logged, check if the
following Extended ambient conditions are evident within the ODIS log as shown below
•
Power reduction status
Batt_limited_performance_active
•
Pump for HV battery coolant, Status
Speed_limitation_because_of_dry_running
NOTE: If the Power reduction status is ‘Batt limited performance active
And/Or
The Pump for High Voltage (HV) battery coolant status is ‘Speed limitation because of dry running’ this suggests a HV coolant system
issue is causing the EV drive speed limitation issue
•
Should the afore mentioned DTC and/or extended ambient conditions be evident - Continue to step 3
3) Referring to Rep.Gr 19 - Check the High Voltage coolant reservoir level
•
Referring to Rep.Gr 19 - Check to confirm there are no coolant leaks on the high voltage coolant system
INTERNAL
In the event a coolant leak is identified, the operative must respond via the open DISS query and await feedback before
conducting any further work
Or
Should no issues be found the operative should continue with the remaining instructions
4) Referring to Rep.Gr 19 - Replace the V590 Coolant pump and the J1141 High Voltage battery coolant pump relay
HINT: The J1141 High Voltage battery coolant pump relay is located as follows
•
Engine compartment
•
Fuse holder SU
•
Part number - 4H0 951 253C
•
Referring to Rep.Gr 19 - Ensure the High Voltage coolant drain, fill and bleed is conducted to completion
5) Conduct a road test - Check to confirm issue is now resolved by driving the vehicle in EV Drive mode
Should the issue be resolved no further action is required
Or
In the issue is not resolved, the operative MUST respond via the open DISS query and await feedback before conducting any
further work
Warranty accounting instructions
Due to numerous possible symptoms which could be evident, please refer to Labour operations section within Elsa pro for all
applicable codes/times
•
Each claim will be reviewed individually by the Bentley Warranty team
Parts information
Any part numbers quoted within this TPI are correct at the time publishing, always refer to the ETKA parts catalogue,
In the event that the high voltage coolant system Anti tamper lock for the high voltage coolant reservoir cap was removed
please ensure the lock is always replaced as per the ETKA parts catalogue
INTERNAL