LI01.30-P-058630

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
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Validity
Vehicle
Engine
Transmission
*
278
*
*
157
*
*
276
*
Vehicle
Engine
Transmission
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
212.162
276.820
722.904
212.165
276.820
722.904
212.167
276.820
722.961
212.168
276.820
722.961
212.195
276.952
724.206
212.255
276.952
722.906
212.259
276.952
722.906
212.265
276.820
722.904
212.267
276.820
722.961
212.273
278.922
722.909
212.273
278.922
725.011
212.273
278.922
725.032
03-21-2014 4:31 PM
© Copyright Daimler AG
DOKONIE
Page 3/5
212.273
278.922
725.033
212.274
157.981
722.931
212.275
157.981
722.931
212.276
157.981
722.971
212.280
276.952
722.960
212.288
276.952
722.960
212.291
278.922
722.967
212.291
278.922
725.021
212.292
157.981
722.971
216.373
278.920
722.909
216.374
157.980
722.931
216.394
278.920
722.967
218.355
276.952
722.906
218.359
276.952
722.906
218.359
276.952
725.011
218.373
278.922
722.909
218.373
278.922
725.011
218.374
157.981
722.931
218.375
157.981
722.931
218.376
157.981
722.971
218.391
278.922
722.967
218.391
278.922
725.041
218.392
157.981
722.971
218.959
276.952
722.906
218.959
276.952
725.011
218.973
278.922
722.909
218.973
278.922
725.011
218.974
157.981
722.931
218.975
157.981
722.931
218.976
157.981
722.971
218.991
278.922
722.967
218.991
278.922
725.041
218.992
157.981
722.971
221.057
276.950
722.906
221.073
278.932
722.909
221.074
157.980
722.931
221.082
276.950
722.960
221.094
278.932
722.967
221.157
276.950
722.906
221.173
278.932
722.909
221.174
157.980
722.931
221.182
276.950
722.960
221.194
278.932
722.967
03-21-2014 4:31 PM
© Copyright Daimler AG
DOKONIE
Page 4/5
222.057
276.960
724.206
222.057
276.960
725.011
222.077
157.985
722.931
222.082
278.929
722.909
222.082
278.929
725.011
222.085
278.929
722.967
222.085
278.929
725.041
222.157
276.960
724.206
222.157
276.960
725.011
222.162
276.824
722.904
222.162
276.824
725.011
222.165
276.824
722.904
222.165
276.824
725.011
222.177
157.985
722.931
222.178
157.985
722.971
222.182
278.929
722.909
222.182
278.929
725.011
222.185
278.929
722.967
222.185
278.929
725.041
231.457
276.954
722.906
231.465
276.825
722.904
231.473
278.927
722.909
231.474
157.983
722.931
251.057
276.958
722.906
251.157
276.958
722.906
251.163
276.826
722.904
251.166
276.826
722.904
463.272
157.984
722.905
463.273
157.984
722.905
03-21-2014 4:31 PM
© Copyright Daimler AG
DOKONIE
Page 5/5