NHTSA ID Number: 11020022
Manufacturer Communication Number: 2077847/1
TSB/Document Date: 2025-07-01
Summary
OBC Charging Efficiency MIL SW Update (NAR Only) | Bentayga (Hybrid
) | 25MY. A Software update is required for Plug-in Hybrid
vehicles built prior to BIL 7.1 This update must be applied to update the vehicles on board charger (OBC). Diagnostic address (00C6). The update resolves the potential triggering of the following fault: • "Control unit defective" error 0x100200 low_power_efficiency (TI=B200000) is registered in the OBC. Repeated occurrences of the identified error will result in MiL illumination.
Field campaign
Topic
Market area
Brand
Transaction No.
Campaign number
Note
Type
US code
OBC Charging Efficiency MIL SW Update (NAR Only) | Bentayga (Hybrid
) | 25MY
United States E05 Bentley
USA and rest America (6E05)
Bentley![]()
2077847/1
ED46
Vehicle data
Hybrid
(PHEV) Bentayga 25 Model Year
Sales types
Type
4V14F9
4V14F9
4V14F9
4V14F9
4V14F9
4V14F9
4V14F9
4V14F9
4V14F9
4V15F9
4V15F9
4V15F9
4V15F9
4V15F9
4V15F9
4V15F9
4V15F9
4V15F9
MY
2025
2025
2025
2025
2025
2025
2025
2025
2025
2025
2025
2025
2025
2025
2025
2025
2025
2025
Brand
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
Documents
Document name
master.xml
ed46vinlist.pdf
Designation
SUV PHEV BY636PH340/V6 8AG
SUV PHEV BY636PH340/V6 8AG
SUV PHEV BY636PH340/V6 8AG
SUV PHEV BY636PH340/V6 8AG
SUV PHEV BY636PH340/V6 8AG
SUV PHEV BY636PH340/V6 8AG
SUV PHEV BY636PH340/V6 8AG
SUV PHEV BY636PH340/V6 8AG
SUV PHEV BY636PH340/V6 8AG
SUV PHEV S BY636PH340/V6 8AG
SUV PHEV S BY636PH340/V6 8AG
SUV PHEV S BY636PH340/V6 8AG
SUV PHEV S BY636PH340/V6 8AG
SUV PHEV S BY636PH340/V6 8AG
SUV PHEV S BY636PH340/V6 8AG
SUV PHEV S BY636PH340/V6 8AG
SUV PHEV S BY636PH340/V6 8AG
SUV PHEV S BY636PH340/V6 8AG
Engine code Gearbox code
DCBE
UDT
DCBE
VFM
EALD
VPK
EALD
VFM
EALD
UDT
EALA
VFN
EALA
UDT
DCBE
VPK
DCBE
VFN
DCBE
UDT
EALD
VFM
EALD
UDT
EALA
VFN
EALD
VPK
DCBE
VPK
DCBE
VFN
DCBE
VFM
EALA
UDT
Final drive code
RZQ
RZQ
RZQ
RZQ
RZQ
RZQ
RZQ
RZQ
RZQ
RZQ
RZQ
RZQ
RZQ
RZQ
RZQ
RZQ
RZQ
RZQ
ED46
OBC Charging Efficiency MIL SW Update (NAR Only) | Bentayga (Hybrid
) | 25MY
Notes
Transaction No.: 2077847/1
Release date: Jun 5, 2025
Repair instructions
Technical background
A Software update is required for Plug-in Hybrid
vehicles built prior to BIL 7.1
This update must be applied to update the vehicles on board charger (OBC). Diagnostic address (00C6). The update resolves the potential
triggering of the following fault:
•
"Control unit defective" error 0x100200 low_power_efficiency (TI=B200000) is registered in the OBC. Repeated occurrences of the
identified error will result in MiL illumination.
Remedy
The instructions within the ‘Work’ section must be conducted to completion.
Customer notification
Customers of affected vehicles will be notified in writing by their Bentley
retailer to arrange an appointment
Please ensure that all affected vehicles are checked and repaired at the nearest opportunity, make a note of the required action on the
workshop order before it is signed by the customer
If it is omitted to perform the work required during a workshop visit, the customer should be notified immediately
You should also pass on this information to your new and used car sales department so that affected vehicles are checked and repaired
immediately
Warranty
Warranty
Claim type: 790 or 710
Service number: ED46
Damage code: 0066
Criteria: 01
SVM Update:
Labour Operation Code: 01 51 00 00
Time: As per ODIS log (Must not exceed 150 TU)
Parts
Not Applicable
Parts supply
Not Applicable
Parts despatch control
Not Applicable
Repair instructions
Notes
Technical background
A Software update is required for Plug-in Hybrid
vehicles built prior to BIL 7.1
This update must be applied to update the vehicles on board charger (OBC). Diagnostic address (00C6). The update resolves the potential
triggering of the following fault:
•
"Control unit defective" error 0x100200 low_power_efficiency (TI=B200000) is registered in the OBC. Repeated occurrences of the
identified error will result in MiL illumination.
Check
Check if the vehicle is already listed as repaired in “Repair history" (in ElsaPro).
Please also refer to the “Identification” section and check if a paint identification mark is evident in the vehicle.
If the vehicle is not shown in ElsaPro as repaired, and the identification mark is not present, please conduct the instructions within the ‘Work’
section to completion
Parts
Not Applicable
Work
CAUTION
The Bentley
ODIS-S Brand Version MUST be at least 2.35.2 (or higher)
CAUTION
Before conducting the onward instructions, the operative MUST recheck the communication method in ODIS and ensure
that DoIP is selected before proceeding. Within ODIS-S, perform the following:
– On the right hand side, select the “Admin” tile (Within ‘Operating modes’)
– Select “GFF sequence” (Within ‘General information’ section)
– Under the “Selection of Communication path” drop-down menu, select “Only permit DoIP communication”.
CAUTION
DO NOT, UNDER ANY CIRCUMSTANCES, ATTEMPT TO CONDUCT THE SOFTWARE UPDATE VIA THE CAN NETWORK.
ONLY DoIP SHOULD BE USED WHEN PERFORMING THE SVM UPDATE.
CAUTION
You MUST ONLY use the Diagnosis Interface VAS 6154 (WiFi Diagnostic Tool) in USB OPERATION or the CABLECONNECTED VAS 5055 for the reprogramming (updating) of the control units.
– If neither of these units are available, the VAS 5054 (A) may be used in USB MODE.
– DO NOT under any circumstances use a Bluetooth connection to conduct the reprogramming (updating) of any control
units.
Battery Charger
CAUTION
ONLY Chargers that meet the approved specification on the Mandatory Equipment List (available on the Bentley
Hub)
MUST be used.
– The charger must be set to a mode where a MINIMUM of 90a is supplied to the battery during the process. Typically, this
is known as ‘Power Supply Mode’ or ‘DIAG+ Mode’.
– A voltage of exactly 13.8v must be set and maintained throughout the process.
– Please refer to the manual to ensure that these requirements are met before beginning any SVM update
Preparation Before Update
WARNING
Hybrid
Vehicles use a High Voltage System and therefore MUST ONLY be worked on by suitable personnel
CAUTION
During the update, switch off all unnecessary consumers. For example, ventilation, seat heaters, interior illumination,
exterior lights ect.
Conduct a full guided fault find of the vehicle.
Address any unknown faults BEFORE conducting any of the below updates, referencing the applicable TPI.
Ensure that the correct battery charger is connected to the vehicle. – Refer to the ‘’Battery Charger’’ Section above.
Obtaining Hotfix for ODIS-S
Visit https://bentley.atheer.io/ and log in with the following case-sensitive account details.
•
Username: bilupdate
•
Password: Bentley123!
NOTICE
If you are already logged into your retailer account, you will need to logout first. To do this, click on your account initials
(bottom left corner) and click “Sign Out”.
After logging in, using the navigation bar on the left hand side, click on the ‘conversations’ tab
Next, click the conversation name ‘’ED44/45/46 Hotfix’’
NOTICE
You MUST NOT leave the conversation, remove users from the conversation, delete the conversation or alter the
conversation in any way. The ONLY action you are permitted to perform is download the applicable file required for this
campaign.
In this conversation, you will find a file named “E_2.35.2_HF_SE24V0BIL5501_V1_20250507-161723.zip”
Left click the file names and download the folder.
After left-clicking the file to download, the download will take circa 5-10 minutes, do not interrupt this process. You may need to wait a short
period (internet speed dependent) for the file to download.
During/before the download commences, there may be a warning about a "pop-up" being blocked which will prevent the file from downloading,
ensure to select option "Allow Pop-Ups from this website" to download the file. Wording may differ depending on web browser.
Locate the download file and extract it. To do this, right click the file, click “7 zip” and then “Extract here”
After successfully downloading the file, please logout of the account.
SVM Code Input (Vehicle Baseline)
CAUTION
At this point, a suitable battery charger must be connected to the vehicle.
1. After a suitable battery charger is connected, select the Special Functions tab
2. Navigate to ‘SVM – Code input’ and enter the SVM code: 4V0BIL7201 and select “Adopt”.
NOTICE
Ensure that the Mirror server is connected when running the SVM code.
3. On the next screen, ensure that the SVM code is correct.
4. You will be shown the communication type. This MUST be set to “DoIP”.
a. If “DoIP” is not selected, select option 3 until the communication type is set to “DoIP”.
6. Ensure that the diagnostic device remains connected for the duration of the update.
7. Follow all on-screen prompts until the program ends.
a. You may be required to perform various ignition cycles during the test so ensure that you are situated around the vehicle/ODIS-S device
for the full update.
8. If you receive the error message ‘8118’:
a. Switch off the battery charger
b. Switch off the ignition
c. Remove the VCI
d. Close all doors
e. Wait 15 minutes
f. Retry the SVM code
g. If the error is received again, allow the vehicle to reach a full CAN-BUS sleep
h. Remove the 12V battery negative for 15 minutes and return to step f (Refer to ElsaPro Repair Group 27 ‘Battery – To disconnect and
connect’)
NOTICE
If you encounter any errors during the update, or if you receive the ‘8118’ error as per step 8 more than two times, please
raise a full technical DISS query.
Customer statement: “ED46 Support”
Workshop Findings: Give a summary of the error encountered and ensure that the latest Guided Fault Finding log is submitted online
9. If the SVM code completes successfully, ODIS should display as per the image above.
10. After successful completion of the update, perform the following.
a. Turn off the ignition.
b. Remove all equipment from the car (Diagnostic tester/dongle, battery charger, keys).
c. Remove the VCI.
d. Close all doors, windows, bonnet and boot lid.
e. Lock the vehicle to perform a CAN-BUS sleep (wait 15 minutes).
11. After 15 minutes, unlock and open the driver’s door. Turn on the ignition, re-connect the battery charger and diagnostic dongle.
12. Re-run guided fault finding and clear DTCs, check for any abnormal DTCs. If any are present raise a full Technical DISS query.
13. If the DTC shown above is present in 00C6, this can be ignored as per TPI 2076739/-
Identification
Once the applicable action has been conducted, the operative must submit a warranty claim as this will show the service campaign action as
complete within Elsa Pro “Repair history”.
You must also add a paint mark as per the picture below.
Repair instructions
Notes
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TSB/Document ID: 2077847/1
Replacement Service Bulletin Number:
MFR Communication Date: 2025-06-05
MFR Internal Campaign ID/Software Version: ED46
Communication Type: Service Campaign
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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