NHTSA ID Number: 10182016
Manufacturer Communication Number: 2060205/2
TSB/Document Date: 2020-11-03
Summary
Engine Cooling System - DTC P218100 - V8 Kovomo Technical background: It is possible for the engine coolant Thermostat to corrode over time, this corrosion is due to an adverse reaction of the Thermostat material with the engine coolant. The corrosion and subsequent build-up of debris prevents the correct operation of the thermostat when closing, resulting in over cooling. The ECM triggers a DTC when the target engine temperature is outside of the specified parameter
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TSB/Document ID: 2060205/2
Replacement Service Bulletin Number:
MFR Communication Date: 2020-10-30
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
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Technical product information
Topic
Market area
Brand
Transaction No.
Level
Status
Release date
Engine Cooling System - DTC P218100 - V8 Kovomo
Bentley
: worldwide (2WBE)
Bentley
2060205/2
EH
Released for publishing
30-Oct-2020
New customer code
Object of complaint
Complaint type
Position
engine -> cooling, lubrication -> engine coolant temperature control functionality -> faulty
engine -> cooling, lubrication -> engine coolant temperature control functionality -> too slow
engine -> cooling, lubrication
functionality
engine -> cooling system
functionality
New workshop code
Object of complaint
Complaint type
Position
engine -> operation, engine control -> engine control unit control units, services -> with event log entry
Vehicle data
Bentayga
Sales types
Type
MY Brand Designation
Engine code Gearbox code Final drive code
4V14D9
4V14D9
4V14D9
4V14D9
2018
2019
2020
2021
DCUA
DCUA
DCUA
DCUA
E
E
E
E
SUV KoVOMo BY636 404/V8 8AG
SUV KoVOMo BY636 404/V8 8AG
SUV KoVOMo BY636 404/V8 8AG
SUV KoVOMo BY636 404/V8 8AG
RWH
RWH
RWH
RWH
New Continental GT and GTC
Sales types
Type
3S32CB
3S32CB
3S42CB
3S42CB
MY
2020
2021
2020
2021
Brand Designation Engine code
E
*
E
*
E
*
E
*
Documents
Document name
master.xml
Gearbox code
*
*
*
*
Final drive code
*
*
*
*
QUT
QUT
QUT
QUT
Technical product information
Engine Cooling System - DTC P218100 - V8 Kovomo
Transaction No.: 2060205/2
Release date: 30-Oct-2020
Customer statement / workshop findings
Emission Control Lamp illuminated on Driver Instrument Panel. The time to reach the correct engine coolant operating temperature has
increased.
Diagnostic Trouble Code (DTC) ‘P218100 - Cooling System Performance’ is stored in the Engine Control Module (ECM), the vehicle “ warm
up” time is longer when compared to other vehicles of the same type.
Technical background
It is possible for the engine coolant Thermostat to corrode over time, this corrosion is due to an adverse reaction of the Thermostat material with
the engine coolant.
The corrosion and subsequent build-up of debris prevents the correct operation of the thermostat when closing, resulting in over cooling. The
ECM triggers a DTC when the target engine temperature is outside of the specified parameter.
Production change
Under investigation.
Measure
With a confirmed Customer complaint of MIL activation, accompanied with DTC ‘P218100, Cooling System Performance’ proceed to replace
the engine coolant thermostat, refer to 19 – Engine cooling – Coolant regulator (Thermostat insert) (V8 biturbo) – To remove and fit. Once
completed, retest the vehicle to ensure correct functionality.
Parts information
Refer to the electronic parts catalogue (ETKA).
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