NHTSA ID Number: 10167487
Manufacturer Communication Number: LI01.30-P-058630
TSB/Document Date: 2019-11-12
Summary
Minor leaks at the oil duct of the left or right cylinder head of engines 157, 276 and 278. 1. Left cylinder head: Oil passage plug hole on left beside mechanical vacuum pump. 2. Right cylinder head: Oil passage plug hole below high-pressure pump housing.
Engine oil leak at oil duct of left or right cylinder head
Topic number
LI01.30-P-058630
Version
1
Design group
01.30 Cylinder head
Date
03-21-2014
Validity
Engine 157, engine 276 and engine 278.
Up to engine
2769xx 30 530090
2789xx 30 141210
Reason for change
Reason for block
Complaint:
Minor leaks at the oil duct of the left or right cylinder head of engines 157, 276 and 278.
1. Left cylinder head: Oil passage plug hole on left beside mechanical vacuum pump.
2. Right cylinder head: Oil passage plug hole below high-pressure pump housing.
Cause:
Scoring in oil passage hole in area of check ball plug.
Remedy:
Insert a cylindrical pin into the oil passage opening (as per attached instructions).
Attachments
File
Designation
Reparaturanleitung Kugelverschluß Hauptölkanal am Zy- Repair instructions
linderkopf MOVE.pdf
Repair instruction check ball at the main oil channel of left Repair instructions
- right cylinder head.pdf
Symptoms
Power generation / Engine lubrication/oil cooling / Engine lubrication/oil cooling leaks / External oil loss
Parts
Part number
ES1 ES2 Designation
N 000000 002507
Quantity Note
Cylinder pin
1
Knock cylinder pin flush into
hole.
EPC Other
make
part
X
A 001 986 71 71
10
Cleaning agent
1
X
A 007 989 79 71
09
Thread locking compound
1
X
03-21-2014 4:31 PM
© Copyright Daimler AG
DOKONIE
Page 1/5
Validity
Vehicle
Engine
*
278
*
*
157
*
*
276
*
Vehicle
Engine
166.055
276.955
722.906
166.056
276.821
722.904
166.056
276.925
722.904
166.057
276.955
722.906
166.058
276.955
722.906
166.059
276.821
722.904
166.062
276.821
722.904
166.073
278.928
722.909
166.073
278.928
725.031
166.073
278.928
725.032
166.074
157.982
722.905
166.074
157.982
722.931
166.856
276.821
722.904
166.864
276.821
722.904
166.865
276.821
722.904
166.872
278.928
722.909
166.872
278.928
725.031
166.872
278.928
725.032
166.872
278.928
725.033
166.873
278.928
722.909
166.873
278.928
725.031
166.873
278.928
725.032
166.873
278.928
725.033
166.874
157.982
722.905
166.874
157.982
722.931
172.457
276.956
722.906
204.055
276.957
722.906
204.057
276.957
722.906
204.080
276.957
722.960
204.088
276.957
722.960
204.257
276.957
722.906
204.357
276.957
722.906
204.388
276.957
722.960
Full model designation breakdown
03-21-2014 4:31 PM
© Copyright Daimler AG
DOKONIE
Page 2/5
204.957
276.957
722.906
204.988
276.957
722.960
204.990
276.957
722.960
207.355
276.957
722.906
207.359
276.957
722.906
207.362
276.820
722.904
207.365
276.820
722.904
207.373
278.922
722.909
207.388
276.957
722.960
207.455
276.957
722.906
207.459
276.957
722.906
207.462
276.820
722.904
207.465
276.820
722.904
207.473
278.922
722.909
212.055
276.952
722.906
212.059
276.952
722.906
212.065
276.820
722.904
212.067
276.820
722.961
212.073
278.922
722.909
212.073
278.922
725.011
212.073
278.922
725.032
212.074
157.981
722.931
212.074
157.981
722.965
212.075
157.981
722.931
212.076
157.981
722.971
212.080
276.952
722.960
212.088
276.952
722.960
212.091
278.922
722.967
212.091
278.922
725.021
212.092
157.981
722.971
212.095
276.952
724.206
- 6X better wear protection on critical engine parts than...
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- Protection for 10,000 miles between oil changes
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TSB/Document ID: LI01.30-P-058630
Replacement Service Bulletin Number:
MFR Communication Date: 2014-03-21
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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