2061369/2

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
2061369/2
EH
Approval
New customer code
Object of complaint
Complaint type
engine -> cooling, lubrication -> engine coolant temperature control
engine -> cooling system
engine -> cooling system -> engine cooling fan
lighting system, signalling -> sound signals -> "coolant level" acoustic warning
functionality -> faulty
functionality
noise, vibration -> too loud
functionality -> activates
Vehicle data
Bentayga - New Continental GT/C and New Flying Spur
Sales types
Type
3S32CB
3S32CB
3S42CB
3S42CB
4V14D9
4V14D9
4V14D9
4V14D9
ZG22CB
MY
2020
2021
2020
2021
2018
2019
2020
2021
2021
Brand Designation Engine code Gearbox code
E
*
*
E
*
*
E
*
*
E
*
*
E
*
*
E
*
*
E
*
*
E
*
*
E
*
*
Documents
Document name
master.xml
Final drive code
*
*
*
*
*
*
*
*
*
Position
Technical product information
Engine overheating - Warning on the DIP - V8 Kovomo
Transaction No.: 2061369/2
Customer statement / workshop findings
•
Customer reports an engine overheat warning on the DIP
•
Engine overheats
•
Unusual cooling fan operation at high temperatures
•
There are no signs of coolant leaks both internally or externally
Technical background
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 solenoid valve for the mechanical coolant pump
For illustration purposes only:
Figure 1 Shows the Bentayga Solenoid (Arrow)
Figure 2 Shows the New Continental GT/ GTC and Flying Spur solenoid (Arrow)
Figure 1
Figure 2
The solenoid is designed to cut off the vacuum supply to the coolant pump when the engine reaches the 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.
When the solenoid 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
Production change
Not applicable
Measure
1) Check and confirm the solenoid valve 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
Should the symptom be as described and there is no issues with the vacuum system other than a constant vacuum being
supplied to the coolant pump the solenoid is at fault and must be replaced
2) The gain access to the solenoid - Remove the right hand engine side cover – Rep.Gr 10
•
Disconnect the vacuum hoses and electrical connection
•
Replace the solenoid
•
Reconnect the vacuum hoses and electrical connection
•
Refit the right hand engine cover
Should the symptom be as described and there is no issues with the vacuum system other than a constant vacuum being
supplied to the coolant pump the solenoid is at fault and must be replaced
Warranty accounting instructions
Warranty type
110 or 910
Damage service number 21 69
Damage code
00 17
Labour
Labour operation code
21 69 19 22 (Use 99 index until 06/05/21)
Time
30 TU
Parts information
Ne w Co n t in e n t a l G T / G T C a n d F ly in g Sp u r
Description
Part number
Quantity
Solenoid valve 06H 906 283B 1
Be n t a y g a
Description
Part number
Quantity
Solenoid valve 7PP 906 283F 1