2062080/5
Service Bulletin Details
Public Details for: 2062080/5
Bentayga v8 kovomo and v6 (hybrid) - fuel pressure regulation. Customer statement / workshop findings: check engine lamp illuminated within the driver instrument panel (dip) with one or multiple dtcs as detailed below: -P310B00 with symp
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Technical product information Bentayga V8 Kovomo and V6 (Hybrid) - Fuel Pressure Regulation Russische Föderation (5RU),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),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 Topic Market area Brand Transaction 2062080/5 No. Level EH Status Approval Release date New customer code Object of complaint Complaint type information, navigation, communication, entertainment -> symbolic fault indicators -> fault indicator for fuel system information, navigation, communication, entertainment -> symbolic fault indicators -> emission control system fault indicator functionality -> activates functionality -> activates New workshop code Object of complaint engine -> fuel supply -> low-pressure fuel pump (tank) engine -> operation, engine control -> engine control unit engine -> operation, engine control -> engine control unit engine -> operation, engine control -> engine control unit engine -> operation, engine control -> engine control unit engine -> operation, engine control -> engine control unit Complaint type Position functionality -> uneven functionality -> misfire electrics -> ground connection damaged control units, services -> with event log entry control units, services -> measured value too high control units, services -> error message Vehicle data Bentayga - V8 Kovomo and V6 (Hybrid) Sales types Type MY Brand Designation Engine code Gearbox code Final drive code 4V14D9 4V14D9 4V14D9 4V14D9 4V14D9 4V14F9 4V14F9 4V14F9 4V14F9 2018 2019 2020 2021 2022 2019 2020 2021 2022 E E E E E E E E E * * * * * * * * * * * * * * * * * * * * * * * * * * * Chas is numbers Manufacturer Filler Type Filler MY Factory From To Prod from Prod to SJA * * * * C 014527 039999 SJA * * * N C 011001 012885 Documents Document name master.xml measurement.pdf Position Technical product information Bentayga V8 Kovomo and V6 (Hybrid) - Fuel Pressure Regulation Transaction No.: 2062080/5 Customer statement / workshop findings Check Engine Lamp illuminated within the Driver Instrument Panel (DIP) with one or multiple DTC’s as detailed below: • “ P310B00 with symptom code 2636 - Low Fuel Pressure Regulation” Low Fuel Pressure Regulation” • “ P014800 Fuel Deliver Error” • “P019100 Fuel Rail pressure Sensor ‘A’ Circuit Range/Performance • “ Misfire ” DTC’s There may be multiple DTC’s and symptoms present due to fuel pressure regulation or fuel supply issues Technical background In the event the customer complaint relates to the following: • Customer experienced poor start up - proceed with the remaining instructions NOTE: The operative must gather information regarding the Customer experience regarding when the issue occurred for example: Preconditions, warning lights and driveability at the time that the issue occurred, details when the vehicle was last refuelled and the grade of fuel used The operative must now use the information contained within the “Measure” section to determine the correct analysis and repair procedure. Production change In the event the symptom is as described and the VIN is not within the applicable range (see TPI header data/chassis numbers) please raise a DISS query and await feedback before conducting any further work Measure Check Engine Lamp Illumination with DTC P310B00 and symptom code 2636 - Engine Running Concerns, Fuel system issues • “ P310B00 Low Fuel Pressure Regulation – symptom code 2636” • “ P014800 Fuel Deliver Error” • “P019100 Fuel Rail pressure Sensor ‘A’ Circuit Range/Performance • “ Misfire ” DTC’s 1) If not already done, raise a DISS query. 2) Check “Low fuel pressure, specified value” and “Fuel low pressure, actual value” within the fault memory, refer to ECU “01 – Engine Control Module 1” - From “Extended ambient conditions” note the values of the “Low fuel pressure, specified value” and “Fuel low pressure, actual value ” as shown in Figure 1. Figure 1 • If not already done, raise a DISS query, add the following results / information. Note the “Low fuel pressure, specified value” and “Fuel low pressure, actual value” on the DISS query. • Using ODIS Measured values check low fuel pressure when the vehicle is starting or idling – this should normally be 400 – 800 kPa • Check the fuel system pressure at the fuel tank outlet with a pressure gauge, this should be the same as the figure measured with ODIS or approximately 100 kPa lower if the gauge is relative to atmospheric pressure • After switching the engine off the pressure within the fuel system should remain at 400 kPa or above for at least ten minutes • Check the fuel pump ECU electrical earth point condition, check for debris, cleanliness and tightness of earth point nut - if any issues were found - Rectify as required • Record results on the DISS query, attach clear photograph(s) • Check all fuel pump ECU connector pins for signs of contamination or damage. Check for any other concern that may lead to poor retention, high resistance or poor connection. Ensure issues noted during this inspection are corrected 3) Fit a new fuel pump control module with the part number of 4M4 906 121B • Clear any fault codes that may be present and conduct a short road test, make a note of any fault codes that are logged during the road test • Should any issues be evident from any previous technical checks/inspection or for example: DTC’s logged during the road test The issue can be reproduced Repeat visit for the same issue Fuel level shown in the DIP does match the actual amount of fuel which is in the tank (as applicable MWB’s) • The Operative MUST add any relevant information to the DISS query Or • Should no issues be evident, the car can be returned to the customer Warranty accounting instructions Warranty type - 110 or 910 Damage Service Number 20 66 Damage Code 01 00 Time to remove and replace the fuel pump control unit (J538) Labour Operation Code 20 70 19 50 Time 10 TU Self Diagnosis Labour Operation Code 01 50 00 00 Time 30 TU - Time taken from diagnostic log (Maximum 30TU) Time to remove and refit the rear seats (4 seat) Labour Operation Code 68 16 19 01 Time 190 TU Time to remove and refit the rear seats (5 seat) Labour Operation Code 72 48 20 05 Time 100 TU Time to remove and refit the seat sill panel Labour Operation Code 68 05 19 00 Time 20 TU Time to remove and refit the boot side trim panel Labour Operation Code 70 03 19 00 Time 40 TU Parts information Fuel pump control unit - 4M4 906 121B (x1) Measurement Display Name Value ECU Vehicle speed Engine speed Date Voltage terminal 30 Coolant temperature Dashboard 0017 Dashboard 0017 Dashboard 0017 Dashboard 0017 Dashboard 0017 Vehicle Distance Driven Engine speed Vehicle speed Fuel tank fill level Number of driving cycles since erasing DTC memory Number of manual engine starts Number of automatic engine starts Fuel consumption since DTC memory last erased Fuel, tank fill level Fuel high pressure, actual value Fuel temperature EMS 0001 EMS 0001 EMS 0001 EMS 0001 EMS 0001 EMS 0001 EMS 0001 EMS 0001 EMS 0001 EMS 0001 EMS 0001 Terminal 15 status Voltage terminal 30 Start-stop enabling Start-stop conditions Battery current Battery voltage Generator current Generator DF signal Generator voltage 12 V elec. system, error status Gateway 0019 Gateway 0019 Gateway 0019 Gateway 0019 Gateway 0019 Gateway 0019 Gateway 0019 Gateway 0019 Gateway 0019 Gateway 0019