NHTSA ID Number: 10154019
Manufacturer Communication Number: LI5418P056220
TSB/Document Date: 2019-03-04
Summary
Corrosion at electrical connecting point between front bumper and interior (X174/1)
Corrosion at electrical connecting point between front bumper and interior (X174/1)
Topic number
LI54.18-P-056220
Version
9
Function group
54.18 Cable harnesses
Date
01-22-2019
Validity
Model 166
Reason for change
Text revised and validity adjusted.
Reason for block
Complaint:
Possible Complaints:
1) Various faults in the suspension CAN are logged in the quick test.
2) Under certain circumstances it may not be possible to start or switch off the vehicle.
3) Interference of Parktronic.
Cause:
Corrosion may have occurred at the connecting point X174/1 from the front bumper to the interior wiring harness.
Attachments
File
Description
CIMG3906.JPG
Corrosion at connecting point X174/1
Remedy:
1.
2.
3.
4.
Replace connecting point X174/1.
Reinstall all contacts and replace connector housing on interior wiring harness.
If the conductor in the line itself exhibits corrosion, cut it off until there is enough bare (uncorroded) copper for
crimping. If the line length is no longer sufficient, lengthen it accordingly.
Replace bumper wiring harness. NOTE: Determine part number of bumper wiring harness in EPC in 88.030 under item 250, because this depends on the equipment installed.
To provide additional protection to the connecting point against further water entry:
•
•
•
The corresponding cap should be adjusted as shown in the picture "cable duct.jpg".
Due to its situation, the cable duct must be cut off and deburred as shown in the picture.
After this, the cover can be placed at the appropriate connecting point (see picture: "Installation.jpg")
Attachments
File
Description
Installation.jpg
Installation of cap
Symptoms
Power generation / Engine management / Engine running / Does not turn off/delay in turning off
01-22-2019 6:59 PM
© Copyright Daimler AG
MYNELSO
Page 1/5
Communication/information / Assistance and warning systems / Parking assist / PARKTRONIC / Malfunction of displays / General
Communication/information / Assistance and warning systems / Distronic / Function / Warning message in instrument cluster
Overall vehicle / Networking / CAN/FlexRay communication / Malfunction
Power generation / Engine management / Engine start/stop / Does not start
Communication/information / Assistance and warning systems / Brake Assist / Warning message in instrument cluster
Control unit/fault code
Control unit
Fault code
Fault text
A80 - Shift module (ISM)
(DSM)
U041587
Implausible data were received from control unit 'ESP®'. The
message is missing.
A80 - Shift module (ISM)
(DSM)
U04158F
Implausible data were received from control unit 'ESP®'. The signal or message is erratic.
N128 - Electric parking brake
(EFB) (EPKB166)
U102700
Chassis CAN bus OFF fault
N62 - Parking system (PTS)
(PTS218)
U042300
Implausible data were received from the instrument cluster. _
N128 - Electric parking brake
(EFB) (EPKB166)
U014600
CAN signal 'Outside temperature' from control unit 'N10 (SAM
control unit)' or CAN signal 'Reverse gear' from control unit 'Engine' is implausible.
N128 - Electric parking brake
(EFB) (EPKB166)
U103200
Chassis CAN communication has a malfunction.
Parts
Part number
ES1 ES2 Designation
Quantity Note
EPC
A 001 545 50 80
ELA MLK 1.2 in yellow
8
X
A 000 545 71 80
ELA SLK 2.8 in blue
4
X
A 000 545 78 80
Blind plug, green
2
X
A 029 545 09 26
Connector housing
1
X174/1 on vehicle side of wiring harness
X
A 000 982 28 26
Female contact MLK 1.2
8
X174/1 on vehicle side of wiring harness for pins: 1, 2, 3, 4, 11, 12, 13,
14
X
A 009 545 80 26
Female contact SLK 2.8
4
X174/1 on vehicle side of wiring harness for pins: 5, 6, 7, 8
X
Bumper wiring harness
1
Bumper wiring harness depends on
optional equipment installed and can
be determined in EPC with the relevant VIN
Cap
1
The front part of the cable duct must
be cut off prior to installation, as
shown in the picture.
A 000 150 22 15
01-22-2019 6:59 PM
© Copyright Daimler AG
MYNELSO
X
Page 2/5
Attachments
File
Description
Cable duct.jpg
Modification of cap
Operation numbers/damage codes
Op. no.
Operation text
Time
Damage
code
Note
51B0C 74
K/Z* front bumper inner left radar
sensor
51P0C 74
K/Z* front bumper inner right radar
sensor
WIS-References
Document number
Title
Note
Allocation
AR00.19-P-0100A
Wiring harness general repair methods
Remedy
AR00.19-P-0001A
Repair wiring harness in accordance with specified repair method
Remedy
AR88.10-P-1310GQ
Remove/install front section
of fender liner in front fender
Remedy
AR88.20-P-2050GQ
Disassemble/assemble front
bumper
Remedy
AR88.20-P-2000GQ
Remove/install front bumper
Remedy
Attachments
01-22-2019 6:59 PM
© Copyright Daimler AG
MYNELSO
Page 3/5
CIMG3906.JPG:
Cable duct.jpg:
01-22-2019 6:59 PM
© Copyright Daimler AG
MYNELSO
Page 4/5
Installation.jpg:
01-22-2019 6:59 PM
© Copyright Daimler AG
MYNELSO
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TSB/Document ID: LI5418P056220
Replacement Service Bulletin Number:
MFR Communication Date: 2019-01-22
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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