2061369.5
Service Bulletin Details
Public Details for: 2061369.5
Engine overheating - warning on the dip - v8 kovomo customer statement: -customer reports an engine overheat warning within the dip -engine overheating -unusual cooling fan operation at high temperatures -there are no obvious signs of
- 2023 - 2022 - 2021 - 2020 - 2019 - 2018 -
Models from 2023
2023 BENTLEY BENTAYGA |
2023 BENTLEY CONTINENTAL GT |
2023 BENTLEY CONTINENTAL GTC |
2023 BENTLEY FLYING SPUR |
Models from 2019
2019 BENTLEY BENTAYGA |
Models from 2018
2018 BENTLEY BENTAYGA |
Technical product information Topic Market area Brand Transaction No. Level Status Release date Engine overheating - Warning on the DIP - V8 Kovomo Bentley: worldwide (2WBE) Bentley 2061369/5 EH Approval New customer code Object of complaint engine -> cooling, lubrication -> engine coolant temperature control engine -> cooling system engine -> cooling system -> engine cooling fan Complaint type Position functionality -> faulty functionality noise, vibration -> too loud Vehicle data Bentayga-New Continental GT/C-New Flying Spur (V8 Kovomo) Sales types Type 3S32CB 3S32CB 3S32CB 3S32CB 3S34CB 3S42CB 3S42CB 3S42CB 3S42CB 3S44CB 4V14D9 4V14D9 4V14D9 4V14D9 4V14D9 4V14D9 ZG22CB ZG22CB ZG22CB ZG22CB ZG24CB ZV14D9 MY 2020 2021 2022 2023 2023 2020 2021 2022 2023 2023 2018 2019 2020 2021 2022 2023 2020 2021 2022 2023 2023 2023 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 * * * Documents Document name master.xml INTERNAL Technical product information Engine overheating - Warning on the DIP - V8 Kovomo Transaction No.: 2061369/5 Customer statement / workshop findings Customer statement • Customer reports an engine overheat warning within the DIP • Engine overheating • Unusual cooling fan operation at high temperatures • There are no obvious signs of coolant leaks both internally or externally Workshop findings • P19F700: Low engine coolant temperature indicator lamp Coolant too warm • Signs of coolant in the vacuum hoses (Refer to the video on the Bentley Hub referencing TPI 2061369/- Technical background Revision history - TPI 2061369/4 • TPI revision made to include the replacement of the switch valve for mechanical coolant pump N649, mechanical coolant pump and the coolant regulator (Thermostat) • To heat the engine as quickly as possible during cold starting, delivery of coolant from the coolant pump is interrupted in the warm-up phase by the switch valve for mechanical coolant pump N649 for the mechanical coolant pump For illustration purposes only: Figure 1 Shows Bentayga (Arrow) Figure 2 Shows New Continental GT/ GTC and Flying Spur (Arrow) Figure 1 INTERNAL Figure 2 • The switch valve for mechanical coolant pump N649 is designed to cut off the vacuum supply to the coolant pump when the engine reaches maximum temperature, the vacuum cut off allows the engine to start circulating coolant by retracting a sleeve which is situated around the coolant pump impeller TIP: When the switch valve for mechanical coolant pump N649 is at fault (sticking open) the vacuum supply is constant, this allows the sleeve to stay in position around the impellor which leads to the symptoms described within the Customer statement/Workshop findings section of this TPI • Referring to Figure 3 the standard operation of N649 (with no operational issues) is as follows: • Un-energised state (Ignition off) = coolant pump connected to vent connection (red arrows) • Energised state (Ignition on) = engine vacuum connection to coolant pump (yellow arrows) INTERNAL Figure 3 HINT: Figure 3 shows an example of N649 for photographic and reference purposes only IMPORTANT: The switch valve for mechanical coolant pump N649 fails due to an internal leak from coolant pump causing corrosion within the unit from coolant migration In the event the symptoms are as described refer to the instructions within the Measure section of this TPI Production change All vehicles post the following VIN’s should have the latest specification coolant pump fitted However In the event the issue is evident post the suggested VIN please raise a technical DISS query and await feedback before conducting any further work New Continental GT/C and New Flying Spur SCBBZ53S6MC087175 Bentayga SJAAL14V0MC036042 Measure The following MUST be conducted when the engine coolant is at ambient temperature (cold engine) 1) Referring to Figures 1,2 and 3 - With care (visually monitor for any traces of coolant) disconnect each vacuum hose from the switch valve for mechanical coolant pump N649 VERY IMPORTANT: If traces of coolant are evident during disconnection, take clear photos or record a clear video of any coolant in the vacuum hoses or N649 and attach to a new or existing DISS query • Refer to the video on the Bentley Hub referencing TPI 2061369/- to check for any signs of coolant within the vacuum hoses • Where possible check and confirm N649 is sticking open and supplying a constant vacuum TIP: Use a Mityvac or similar vacuum tool to check and confirm there are no vacuum related issues/leaks present within the system 2) Referring to Rep.Gr 19 - Replace all of the following parts • Coolant pump • Coolant regulator (Thermostat) • Switch valve for mechanical coolant pump N649 INTERNAL NOTE: All of the afore listed parts MUST be replaced at the same time, the requirement to replace all parts is only applicable when conducting the instructions within this TPI this is due to the required symptoms/criteria being met IMPORTANT: Ensure the vacuum lines are free from moisture DO NOT use compressed air to attempt to remove moisture from the vacuum lines (allow the moisture to naturally evaporate from the vacuum lines) as damage to other components and unintentional disconnection of vacuum hoses can occur Within the quoted Rep.Gr procedures there are single use items which must be replaced and not reused. Ensure that new replacements are available prior to starting this procedure Ensure all procedures within the Repair manual are followed including full wheel and alignments/calibrations which are required for all applicable Driver assist systems (Depending on vehicle specification) 3) On completion conduct a road test to confirm the issue is resolved Warranty accounting instructions Warranty type 110 or 910 Damage service number 21 69 Damage code 00 17 All Models Time to replace the switch valve for mechanical coolant pump N649 Labour operation code 21 69 19 22 Time 30 TU Time to replace the Coolant regulator (Thermostat) Labour operation code 19 58 19 70 (Use 99 index until 15/12/22) Time 10 TU Road test Labour operation code 01 21 00 00 Time 50 TU Time to replace the coolant pump (Depending on model) Bentayga 50 38 19 20 - 800 TU - Front end module remove/install 13 75 19 70 - 40 TU - Crank pulley remove/install 19 50 19 70 - 120 TU - Coolant pump remove/install **Includes regulator housing remove/install** New Continental GT/C 50 38 19 20 - 720 TU - Front end module remove/install 13 75 19 00 - 140 TU - Crank pulley remove/install 19 55 19 00 - 310 TU - Regulator housing remove/install 19 50 19 00 - 210 TU - Coolant pump remove/install New Flying Spur 50 38 19 20 - 770 TU - Front end module remove/install 13 75 19 00 - 140 TU - Crank pulley remove/install 19 55 19 00 - 260 TU - Regulator housing remove/install 19 50 19 00 - 170 TU - Coolant pump remove/install Due to various vehicle types and specifications the operative must refer to the Labour operations section within Elsa pro for Labour operation codes for the Wheel alignment and the alignment/calibration of all applicable Driver assist systems INTERNAL Parts information New Continental GT/GTC and New Flying Spur Description Part number Quantity Switch valve for mechanical coolant pump N649 06H 906 283B 1 Description Part number Quantity Switch valve for mechanical coolant pump N649 7PP 906 283F 1 Bentayga All models Description Part number Quantity Coolant pump 0P2 121 014H 1 Coolant regulator (Thermostat) Refer to ETKA 1 All part numbers listed are correct at the time of publishing, please always refer to the ETKA parts catalogue for latest part number information INTERNAL