2066669/1

Technical product information
Engine coolant - Overheat condition - Warning evident within the DIP - DTC's P2B6500 and P2B8600 are evident
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
2066669/1
No.
Level
EH
Status
Approval
Release
date
Event memory entries
Diagnostic address
0001 - Engine electronics
0001 - Engine electronics
0011 - Engine Electronics 2
0011 - Engine Electronics 2
Event memory entry
Fault type
P2B6500: Coolant Pump "B" Air in System
P2B8600: Coolant Pump "A" Overspeed/Air in System
P2B6500: Coolant Pump "B" Air in System
P2B8600: Coolant Pump "A" Overspeed/Air in System
New customer code
Object of complaint
Complaint type
Position
engine -> cooling, lubrication
functionality
engine -> cooling system
functionality
engine -> cooling system -> coolant expansion tank leaks -> coolant leak
Vehicle data
W12-New Continental GT/GTC (All variants) & New Flying Spur
Sales types
Type
3S31BB
3S31BB
3S31BB
3S31BB
3S31BB
3S31BB
3S31EB
3S31EB
3S31EB
3S31EB
3S41BB
3S41BB
3S41BB
3S41BB
3S41BB
3S41EB
3S41EB
3S41EB
3S41EB
ZG21BB
ZG21BB
ZG21BB
ZG21BB
MY
2018
2019
2020
2021
2022
2023
2020
2021
2022
2023
2019
2020
2021
2022
2023
2020
2021
2022
2023
2020
2021
2022
2023
Brand Designation Engine code
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
Gearbox code
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Final drive code
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Fault status
static
static
static
static
Documents
Document name
master.xml
Technical product information
Transaction No.: 2066669/1
Engine coolant - Overheat condition - Warning evident within the DIP - DTC's P2B6500 and P2B8600 are evident
Customer statement / workshop findings
Customer statement
•
Engine cooling system overheating
And/or
•
Coolant loss
And/or
•
Warning light in Drivers Information Panel (DIP) as Figure 1
Figure 1
Workshop findings
The following DTC’s may also be evident within 0001 and/or 0011
•
P2B6500 and/or P2B8600
Technical background
NOTE: Should the symptoms or a combination of the symptoms mentioned within the Customer statement/workshop findings section
be evident, the operative should consider the instructions within Measure section of this TPI
Production change
-
Measure
CAUTION: The operative must ensure the engine has cooled sufficiently before carrying out this procedure
CAUTION: The operative must wear eye protection for the duration of this procedure
It is imperative the instructions are strictly followed, the steps must be conducted to ensure the coolant system is to
specification before conducting any repair work or replacement of parts
1) Referring to Rep.Gr 19 - Conduct a coolant system pressure test NOTE: Depending on the amount of coolant which has been lost
the coolant system may have to be filled and the coolant bleed process conducted before carrying out the pressure test
Were any issus found after conducting step 1 (Coolant pressure test)? No Conduct step 2
Yes - Raise a DISS query ensuring all applicable information is attached to the DISS query for example: Current ODIS log, photographs/videos,
clears symptom description NOTE: The operative must wait for a reply from Product Support before conducting any further work
2) Referring to Figure 2 - Locate the vent hose shown (975 122 447H)
Figure 2
•
The vent hose has an internal check valve, the valve is positioned within the vent hose at the location shown in Figure 3 (Circled)
Figure 3
•
Referring to Figure 4 - The coolant flows in the direction shown (Arrows) in the event the internal check valve is faulty the flow of the
coolant will be restricted (Causing the symptoms described within the customer findings/workshop findings section)
Figure 4
3) The operation/condition of the check valve can be confirmed as follows:
•
Referring to Figure 5 - Disconnect the vent hose from the Thermostat housing
Figure 5
•
Referring to Figure 6 - To minimise coolant loss, temporarily fit a blanking plug over the stub pipe
Figure 6
4) Referring to Figure 7 - Remove the coolant reservoir cap (Point A)
•
Open the service clip on the bleeder valve (Point B)
Figure 7
5) Referring to Figure 8 - Apply light air pressure into hose (Arrow)
Figure 8
Does the air flow through the vent line without any restrictions?
No - Go to step 4
Yes - Raise a DISS query and await feedback before conducting any further work
4) Replace the vent line
•
Once the vent line has been replaced - Referring to Rep.Gr 19 - Bleed the coolant system
•
Erase all applicable DTC’s
•
Conduct a road test - On return check to confirm that no coolant related DTC’s are evident
Warranty accounting instructions
Warranty Type
110 or 910
Damage Service Number 19 44
Damage Code
00 10
Time to pressure test the coolant system
Labour Operation Code 19 01 01 00
Time
10 TU
Time to replace the vent hose
Labour Operation Code 19 62 19 07
Time
40 TU
Time to top up and bleed the coolant system
Labour Operation Code 01 50 00 00
Time
As per DIS log (Must not exceed 50 TU)
Road test
Labour Operation Code 01 21 00 00
Time
50 TU
Parts information
Description
Part Number
Quantity
Vent hose
975 122 447H
1
Springband clamp (Thermostat housing)
Refer to ETKA
1