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NHTSA ID Number: 10246376

Manufacturer Communication Number: 2066040/3

TSB/Document Date: 2023-12-07


Summary

Oil leak from the oil separator/breather connection - Intake manifold whistle - Engine warning lamp illuminated. Customer statement - Engine warning lamp illumintaed within the DIP And/or - Whistling noise(s) from the Inlet manifold Workshop findings: Oil leak between the oil separator tank and the Bank 1 breather line connection


Technical product information
Oil leak from the oil separator/breather connection - Intake manifold whistle - Engine warning lamp illuminated
Australia E04 BentleyeBay logo rest Asia and Australia (6E04),China 723 VolkswageneBay logo (Anhui) Automotive CO (6723),China 796 VWeBay logo Import
Comp. Ltd (Vico), Beijing (6796),Germany E02 BentleyeBay logo rest Europe (6E02),Japan E03 BentleyeBay logo Japan (6E03),Korea, (South) E08
BentleyeBay logo South Korea (6E08),United Arab Emirates E06 BentleyeBay logo Middle East and Africa (6E06),United Kingdom E01 BentleyeBay logo UK
(6E01),United States E05 BentleyeBay logo USA and rest America (6E05)
BentleyeBay logo

Topic
Market
area

Brand
Transaction
2066040/3
No.
Level
EH
Status
Approval
Release
date
Event memory entries

Diagnostic address
0001 - Engine electronics
0001 - Engine electronics
0001 - Engine electronics
0001 - Engine electronics

Event memory entry
Fault type Fault status
P218700: System too lean at idle, Bank 1
static
P21F800: Fuel Control System "B" Too Lean at Idle Bank 1
static
P227900: Intake Air System Leak
static
P21F400: Fuel Control System "B" Too Lean Off Idle Bank 1
static

New customer code
Object of complaint
engine -> lubrication system -> engine oil
engine -> operation, engine control
vehicle service -> vehicle diagnosis -> guided fault finding
engine -> induction system, charging systems, vacuum systems

Complaint type
Position
component / consumables -> too little
visual appeal / surface
control units, services -> with event log entry
noise, vibration

Vehicle data
New GT/C - New Flying & Bentyga - W12 TSI including Speed
Sales types
Type

MY

Brand Designation Engine code Gearbox code Final drive code

3S31BB
3S31BB
3S31BB
3S31BB
3S31BB
3S31EB
3S31EB
3S31EB
3S31EB
3S41BB
3S41BB
3S41BB
3S41BB
3S41BB
3S41EB
3S41EB
3S41EB
3S41EB
4V14A9
4V14A9
4V14A9
4V14A9

2020
2021
2022
2023
2024
2021
2022
2023
2024
2020
2021
2022
2023
2024
2021
2022
2023
2024
2021
2022
2023
2024

E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E

INTERNAL

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*
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*
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*
*
*
*
*
*
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*
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*
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*
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*
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*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*

4V14G9
4V14G9
4V14G9
4V14G9
ZG21BB
ZG21BB
ZG21BB
ZG21BB
ZG21BB
ZG26BB
ZG26BB

2021
2022
2023
2024
2020
2021
2022
2023
2024
2023
2024

E
E
E
E
E
E
E
E
E
E
E

Documents
name

INTERNAL

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Customer statement / workshop findings
Customer statement

Engine warning lamp illumintaed within the DIP

And/or

Whistling noise(s) from the Inlet manifold

Workshop findings:
Oil leak between the oil separator tank and the Bank 1 breather line connection (Figure 1)
NOTE: Oil leak detection spray is evident within Figure1, the use of detection spray in the example shown is used to highlight the location of the
leak

Figure 1
The following DTC’s may also be evident in conjunction with the oil leak

P218700: System too lean at idle, Bank 1

P21F800: Fuel Control System "B" Too Lean at Idle Bank 1

P227900: Intake Air System Leak

P21F400: Fuel Control System "B" Too Lean Off Idle Bank 1

Technical background
Refer to the Measure section of this TPI
TIP: The operative must always refer to the applicable Rep.Gr and ETKA parts catalogue

Revision history
TPI 2066040/2

Header data changed to include Speed variants

TPI 2066040/3

LOT codes amended

TPI instructions amended within the Measure section regarding breather assembly replacement depending on the model

Bentayga
Or
New ContinentaleBay logo GT/C and New Flying Spur

Production change
-

INTERNAL

Measure
Bentayga
NOTICE
attached:

Current ODIS log showing all applicable DTC’s

Clear photographs or videos of the oil leak

The operative must confirm the part number of the breather line assembly

07P 103 426B
Or
07P 103 426D

IMPORTANT: The operative must await feedback from Product Support before conducting any further work

New ContinentaleBay logo GT/C and New Flying Spur
1) Remove the right hand engine cover - Refer to Rep.Gr 10

Remove the cooling fan - Refer to Rep.Gr 19

Disconnect the electrical connector from each ignition coil

Hint: Position the ignition coil harness to allow the breather pipe to be removed

Remove the right hand charge air cooler hose - Refer to the applicable section of Rep.Gr 21

2) Referring to Figure 2 - Replace the following parts and all associated parts as detailed within the applicable Rep.Gr and the ETKA parts
catalogue

Item 10 - Breather line assembly

Note: Items 11 and 12 are automatically supplied with item 10

Item 11 - O-Ring

Item 12 - O-Ring

Figure 2
NOTE: When refitting the new replacement breather line and O-rings, ensure the following:

Apply a light coating of clean engine oil to the O-Rings

The fixings which secure the breather line connection to the oil separator (Figure 2 - Item 13) must be secured to 10Nm

3) Conduct a short road test
4) Check to confirm the oil leak is rectified, In the event the leak has been rectified no further action is required
Or
In the event the leak is still evident the operative should conduct step 5 to completion
5) Referring to Rep.Gr 17 - Replace the oil separator tank (Figure 3) and all associated parts as detailed within the applicable Rep.Gr and the
ETKA parts catalogue

INTERNAL

IMPORTANT: The O-Rings which were replaced as part of Step 2 (Figure 2 Items 11 and 12) must renewed, DO NOT reuse
the O-Rings regardless of the short time in which they have been fitted

Figure 3
6) Conduct a short road test

Check to confirm the leak has been rectified, In the event the leak has been rectified no further action is required

Or
In the event the leak is still evident the operative should raise a DISS or respond via an existing query and await feedback before conducting any
further work

Warranty accounting instructions
Time to replace the breather line assembly
Warranty Type
110 or 910
Damage Service Number 10 52
Damage Code
00 50

New ContinentaleBay logo GT/C and New Flying Spur
Breather line remove/install
Labour Operation Code 10 52 19 00
Time 10 TU
Right hand charge air hose remove/install
Labour Operation Code 21 13 19 02
Time 40 TU
Air cleaner remove/install*
Labour Operation Code 24 25 19 00
Time 20 TU
Cooling fan remove/install*
Labour Operation Code 19 08 19 00
Time 90 TU
*Air hose remove/install is included in both LOTs therefore10 TU is deducted from overall time
Road test
Labour Operation Code 01 21 00 01
Time 30 TU
Bentayga
Time to remove and refit the engine and transmission
Labour Operation Code 10 01 19 00
Time 1470 TU
Time to remove and refit the bank 1 turbocharger
Labour Operation Code 21 30 19 50
Time 90 TU
Breather line remove/install
Labour Operation Code 10 52 19 53 (Use 99 index until 14/12/23)
Time 10 TU

INTERNAL

Alignment of applicable driver assist systems (Depending on vehicle specification)

Vehicle front + rear measured wheel alignment checked - 44 95 03 00 - 110 TU

Rear wheel camber adjust - 44 94 15 50 - 30 TU


Rear wheel track adjust - 44 93 15 50 - 30 TU
Front wheel camber adjust - 44 89 15 50 - 40 TU

Front wheel track adjust - 44 88 15 50 - 20 TU

(ACC) - Radar sensor checked + adjusted - 91 63 05 51 - 30 TU

Overhead view camera adjusted - 90 83 15 00 - 40 TU

Driver assist camera adjusted - 96 38 15 50 - 120 TU

Control unit for (Lane change assist) adjusted - 96 35 15 00 - 50 TU

Night vision system calibration - 90 80 15 50 - 40 TU

Headlamps to adjust - 94 15 16 00 - 20 TU

Road test
Labour Operation Code 01 21 00 01
Time 30 TU

Time to replace the oil separator tank
Warranty Type
110 or 910
Damage Service Number 10 55
Damage Code
00 50
New ContinentaleBay logo GT/C
Labour Operation Code 10 55 19 00
Time
100 TU
New Flying Spur
Labour Operation Code 10 55 19 00
Time
110 TU
Bentayga
Labour Operation Code 10 55 19 00
Time
60 TU
Road test (all models)
Note: The second road test must only be claimed in the event the oil separator tank was replaced
Labour Operation Code 01 21 00 01
Time 30 TU

Parts information
Refer to the ETKA parts catalogue
NOTICE
parts are available before starting any work

INTERNAL

1

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TSB/Document ID: 2066040/3

Replacement Service Bulletin Number:

MFR Communication Date: 2023-11-30

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: ELECTRICAL SYSTEM

MFR Component System:

MFR Component Subsystem:


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