2055321/2
Service Bulletin Details
Public Details for: 2055321/2
Bentayga w12 - dtc 310b00 - low fuel pressure regulation. Customer statement / workshop findings: engine stalling when the engine is started from cold (at idle) or after a delayed cold start. These issues can trigger dtc 310b00: low fuel
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Technical product information Topic Market area Brand Transaction No. Level Status Release date Bentayga W12 - DTC 310B00 - Low fuel pressure regulation Bentley: worldwide (2WBE),Hongkong-Macau (5HK) Bentley 2055321/2 EH Approval New customer code Object of complaint Complaint type Position engine -> engine operation functionality engine -> operation, engine control functionality engine -> fuel supply functionality Vehicle data Bentayga W12 Sales types Type 4V14A9 4V14A9 4V14A9 4V14A9 4V14A9 4V14G9 4V14G9 MY 2017 2018 2019 2020 2021 2020 2021 Brand Designation Engine code E * E * E * E * E * E * E * Documents Document name master.xml Gearbox code * * * * * * * Final drive code * * * * * * * Technical product information Bentayga W12 - DTC 310B00 - Low fuel pressure regulation Transaction No.: 2055321/2 Customer statement / workshop findings Engine stalling when the engine is started from cold (at idle) Or After a delayed cold start These issues can trigger DTC 310B00: Low Fuel Pressure regulation, Fuel pressure outside specification The following symbol can also be displayed on the Driver Instrument Panel (DIP) in conjunction with an error message “start/stop unavailable” Technical background Prior to conducting the instructions within this TPI, the retailer must check and confirm there are no other issues evident with the vehicle for example: • Misfire related DTC’s • Low pressure fuel DTC’s other than DTC 310B00 • Damaged fuel hoses and pipes – Examine all hoses and pipes external of the fuel tank • Fuel leaks • Correct grade and correct type of fuel within the fuel tank • Vibration noises from the fuel tank (Fuel pumps noisy) IMPORTANT: Should any issues be found these should be rectified and the vehicle tested to confirm the actual issue/symptoms described within the Customer statement section of this TPI are evident prior to carrying out the onward instructions Production change Not applicable Measure Prior to starting any work, the operative must adhere to all instructions within Elsa pro Rep.Gr 20 - Fuel system - Safety precautions - Fuel system - Rules for cleanliness and Special Instructions for Fuel System Quick Connectors The use of safety glasses is recommended for the duration of this procedure 1) Check and confirm the Fuel tank pump assembly Pulse Width Modulation (PWM) value as follows: • Ensure the engine is idling at operating temperature - Ensure a suitable battery charger is also connected as per Rep.Gr 27 • Select Engine control module 1 • Select Guided functions – Read measured values • Referring to Figure 1 - Navigate to Measured value IDE01893 • Select Starting update and monitor the Value – The value should be below 25% NOTE: If the fuel pumps run faster at idle (above 25%) this is a sign of either a significant leakage or that the wrong fuel pump control modules are fitted - Carry out an inspection of the vehicles repair history, should the fuel pump control modules have been previously replaced you must ensure the correct specification were fitted, however if there is no replacement history of the control modules continue to step 2 – Fuel low pressure check Figure 1 2) Fuel low pressure check - Referring to Figure 2 (Point A) navigate to Measured value IDE00186 Fuel low pressure, actual value • Select OK (Point B) Figure 2 • Referring to Figure 3 – Select Starting update • Switch off the engine and leave the ignition on • Monitor the pressure decay of the low pressure fuel system for 10 minutes Figure 3 3) Should the pressure drop below 300 kPa after 10 minutes - Referring to Figure 4 - Gain access to the fuel pump assembly and fuel filter within the right hand side of the fuel tank - Rep.Gr 20 Figure 4 • Carry out an inspection of ALL accessible hoses and connections which connect to the fuel pump assembly/fuel filter assembly as shown in Figures 5 and 6 • Check for punctured/split hoses • Check for broken and loose connections Figure 5 Figure 6 4) Referring to Figure 7 (For photographic purposes Figure 7, was taken with the fuel pump assembly removed from the fuel tank) Check the connection shown is not broken NOTE: Care should be taken when checking this part as damage can be caused when manipulating the fuel pump assembly Figure 7 IMPORTANT: Only the components on the right hand side of the fuel tank are interchangeable, if there is a fault with any components on the left hand side or with any components which are not listed within the ETKA parts catalogue a new fuel tank is required All VIN’s to SJAAP14V0LC026999 • Should any issues be found with the fuel pump assembly or fuel filter replace the fuel pump assembly and fuel filter as per the applicable Rep.Gr All VIN’s from SJAAF1ZV9KC027000 • Should any issues be found with the fuel pump assembly or fuel filter after the checks from Steps 1 through to 4 have been conducted The operative MUST raise a DISS query and await feedback before conducting any further work VERY IMPORTANT: Please return any parts which have been replaced using the parts return system, ensure a reference of this TPI is included when the parts are returned Warranty accounting instructions Time to replace the Fuel delivery module Warranty type - 110 or 910 Damage Service Number 20 66 Damage Code 01 00 Labour Labour Operation Code 20 66 19 50 Time 50 TU 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 Self Diagnosis Labour Operation Code 01 50 00 00 Time Time taken from diagnostic log (Maximum 30TU) Time to replace the fuel tank IMPORTANT: Only the components on the right hand side of the fuel tank are interchangeable, if there is a fault with any components on the left hand side or with any components which are not listed within the ETKA parts catalogue a new fuel tank is required 4 Seat Labour Operation Code 20 10 19 00 Time 590 TU 5 Seat Labour Operation Code 20 10 19 05 Time 540 TU Parts information IMPORTANT: Please ensure TPI 2055235/- is also referred to