2053350.4

Technical product information
Topic
Market area
Brand
Transaction No.
Level
Status
Release date
W12 - Oil leak from engine
Bentley: worldwide (2WBE)
Bentley
2053350/4
EH
Released for publishing
09-Nov-2022
New customer code
Object of complaint
Complaint type Position
whole vehicle -> vehicle areas -> engine compartment leaks -> oil leak
Vehicle data
New Continental GT/C and New Flying Spur
Sales types
Type
3S31BB
3S31BB
3S31BB
3S31BB
3S31BB
3S31BB
3S31EB
3S31EB
3S31EB
3S41BB
3S41BB
3S41BB
3S41BB
3S41BB
3S41EB
3S41EB
3S41EB
ZG21BB
ZG21BB
ZG21BB
ZG21BB
ZG26BB
MY
2018
2019
2020
2021
2022
2023
2021
2022
2023
2019
2020
2021
2022
2023
2021
2022
2023
2020
2021
2022
2023
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
*
Gearbox code
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Final drive code
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Brand Designation Engine code
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
E
*
Gearbox code
*
*
*
*
*
*
*
*
*
Final drive code
*
*
*
*
*
*
*
*
*
Bentayga
Sales types
Type
4V14A9
4V14A9
4V14A9
4V14A9
4V14A9
4V14A9
4V14A9
4V14G9
4V14G9
INTERNAL
MY
2017
2018
2019
2020
2021
2022
2023
2020
2021
4V14G9 2022 E
4V14G9 2023 E
Documents
Document name
master.xml
INTERNAL
*
*
*
*
*
*
Technical product information
W12 - Oil leak from engine
Transaction No.: 2053350/4
Release date: 09-Nov-2022
Customer statement / workshop findings
Oil leak from engine area.
Technical background
The breather return line and the oil dipstick tube O–rings can split causing an external oil leak.
This can be misdiagnosed as the engine sump leaking.
Production change
*
Measure
If an engine oil leak is found from the area shown in Figure 1, check the O-rings of both the breather return line and the dipstick tube for leakage.
The oil can run down the engine and settle on the sump leading to misdiagnosis, Figure 1.
INTERNAL
Figure 1
1. Firstly check the breather return line for signs an oil leak in area highlighted in Figure 2. Should a leak be evident, remove the tube and checkthe O-ring
for damage.
Power unit → Engine lubrication → 6.0 L W12 TSI → Oil breather system return line – To remove and fit
Figure 2
2. Check the dipstick tube for signs of an oil leak in area highlighted in Figure 3. Should a leak be evident, remove the dipstick tube and check
the O-ring for damage.
Power unit → Engine lubrication → 6.0 L W12 TSI → Assembly dipstick and tube – To remove and fit
Figure 3
Should either of the O-rings be damaged or leaking replace according to ETKA.
INTERNAL