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NHTSA ID Number: 10167490

Manufacturer Communication Number: LI07.08-P-058759

TSB/Document Date: 2019-11-12


Summary

Engine diagnosis warning lamp (check engine light - CEL) lights up in instrument cluster. Fault codes relating to combustion misfiring are logged in the fault memory of the engine control unit. In rare cases the engine may be in a limp-home mode. Otherwise there are no other engine performance issues.


Fault codes for combustion misfiring shortly after cold start
Topic number

LI07.08-P-058759

Version

1

Design group

07.08 Control modules

Date

03-24-2014

Validity

Model 222 and 166 with engine 278

Reason for change
Reason for block

Complaint:

Engine diagnosis warning lamp (check engine light - CEL) lights up in instrument cluster.
Fault codes relating to combustion misfiring are logged in the fault memory of the engine control unit.
In rare cases the engine may be in a limp-home mode. Otherwise there are no other engine performance issues.

Cause:

Combustion misfire detection with unfavorable combination of combustion data assignments and component tolerances.

Remedy:

1. If other faults concerning the ignition, fuel supply or electrical and wiring harness contacts are present in addition to
the faults relating to combustion misfiring, then these must be processed first.
2. Check the fault freeze frame data of the combustion misfires in relation to time of occurrence after engine start and
coolant temperature (injector performance data might be also used as a refernce).
3. If the time of occurrence is less than 120 seconds after engine start and at the same time the coolant temperature
is below 45°C, replace the affected injector - the cylinder logging the misfire fault.
Note:
A modified software release for the engine control unit to rectify the problem is currently being prepared. When the
software is published via Xentry, it will no longer be necessary to replace the injector.
This document will be updated then.

Symptoms
Power generation / Engine management / Engine management indicator lamp / Engine diagnosis / lit

Control unit/fault code
Control unit

Fault code

Fault text

ME - Motor electronics
P030884
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 8 has been detected. There is a
signal below the permissible limit value.

ME - Motor electronics
P030485
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 4 has been detected. There is a
signal above the permissible limit value.

03-24-2014 7:14 PM
© Copyright Daimler AG

DOKONIE

Page 1/4

ME - Motor electronics
P030085
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring has been detected. There is a signal above
the permissible limit value.

ME - Motor electronics
P030284
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 2 has been detected. There is a
signal below the permissible limit value.

ME - Motor electronics
P030584
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 5 has been detected. There is a
signal below the permissible limit value.

ME - Motor electronics
P030785
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 7 has been detected. There is a
signal above the permissible limit value.

ME - Motor electronics
P030700
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 7 has been detected. _

ME - Motor electronics
P030784
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 7 has been detected. There is a
signal below the permissible limit value.

ME - Motor electronics
P030185
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 1 has been detected. There is a
signal above the permissible limit value.

ME - Motor electronics
P030385
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 3 has been detected. There is a
signal above the permissible limit value.

ME - Motor electronics
P030600
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 6 has been detected. _

ME - Motor electronics
P030200
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 2 has been detected. _

ME - Motor electronics
P030400
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 4 has been detected. _

ME - Motor electronics
P030384
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 3 has been detected. There is a
signal below the permissible limit value.

ME - Motor electronics
P030500
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 5 has been detected. _

ME - Motor electronics
P030684
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 6 has been detected. There is a
signal below the permissible limit value.

ME - Motor electronics
P030685
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 6 has been detected. There is a
signal above the permissible limit value.

ME - Motor electronics
P030000
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring has been detected. _

ME - Motor electronics
P030100
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 1 has been detected. _

03-24-2014 7:14 PM
© Copyright Daimler AG

DOKONIE

Page 2/4

ME - Motor electronics
P030084
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring has been detected. There is a signal below
the permissible limit value.

ME - Motor electronics
P030285
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 2 has been detected. There is a
signal above the permissible limit value.

ME - Motor electronics
P030484
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 4 has been detected. There is a
signal below the permissible limit value.

ME - Motor electronics
P030885
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 8 has been detected. There is a
signal above the permissible limit value.

ME - Motor electronics
P030184
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 1 has been detected. There is a
signal below the permissible limit value.

ME - Motor electronics
P030800
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 8 has been detected. _

ME - Motor electronics
P030585
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 5 has been detected. There is a
signal above the permissible limit value.

ME - Motor electronics
P030300
'MED177' for combustion engine 'M276' (N3/10)

Combustion misfiring of cylinder 3 has been detected. _

Parts
Part number

ES1 ES2 Designation

Quantity Note

EPC Other
make
part

A 278 070 06 87

Injector

1

X

A 276 072 01 43

Seal pack

1

X

Validity
Vehicle

Engine

Transmission

GL (166)

278

*

S (222)

278

*

Vehicle

Engine

Transmission

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

Full model designation breakdown

03-24-2014 7:14 PM
© Copyright Daimler AG

DOKONIE

Page 3/4

166.873

278.928

725.031

166.873

278.928

725.032

166.873

278.928

725.033

222.082

278.929

722.909

222.082

278.929

725.011

222.085

278.929

722.967

222.085

278.929

725.041

222.182

278.929

722.909

222.182

278.929

725.011

222.185

278.929

722.967

222.185

278.929

725.041

03-24-2014 7:14 PM
© Copyright Daimler AG

DOKONIE

Page 4/4

1

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TSB/Document ID: LI07.08-P-058759

Replacement Service Bulletin Number:

MFR Communication Date: 2014-03-24

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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