2053350.2

Technical Service Bulletin
Topic
Market area
Brand
Transaction No.
Level
Status
Release date
W12 - Oil leak from engine
Bentley: worldwide (2WBE),Hongkong-Macau (5HK)
Bentley
2053350/2
EH
Released for publishing
May 17, 2019
New customer code
Object of complaint
Complaint type Position
entire vehicle -> vehicle areas -> engine compartment leaks -> oil leaking
Vehicle data
New Continental GT
Sales types
Type
3S3*
3S3*
3S3*
MY
2018
2019
2020
Brand Designation Engine code Gearbox code
E
*
*
E
*
*
E
*
*
Final drive code
*
*
*
Bentayga
Sales types
Type
4V1*
4V1*
4V1*
4V1*
MY
2017
2018
2019
2020
Brand Designation Engine code Gearbox code
E
*
*
E
*
*
E
*
*
E
*
*
Documents
Document name
master.xml
Final drive code
*
*
*
*
Technical Service Bulletin
W12 - Oil leak from engine
Transaction No.: 2053350/2
Release date: May 17, 2019
Condition
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 Solution
*
Service
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.
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 check the Oring 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 Oring 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.