LI4635P073052

Noticeable Vibrations At Steering Wheel
Topic number
LI46.35-P-073052
Version
1
Function group
46.35 - Electrical steering
Date
5/25/21
Validity
Model 167, all up to manufacturing date 28.02.2020
Reason for change
Complaint
Noticeable vibrations at steering wheel and a display message shown in instrument cluster at same time.
The following fault code combination is logged in the fault memory of the electric power steering (N68):
"P063507 - The electric power steering has a malfunction. There is a mechanical fault.
Sub-fault "50009 - Freezing Detection and Retention - blocking detected".
Note: The sub-fault is stored in the control unit log or in the fault freeze frame data from the quick test in the line "Development data (Root cause ErrorID) first occurrence" – see example in Attachment 001.
Note: This fault does not impact the ability for the driver to maintain control of the vehicle.
Cause
1. Water entry into steering gear through damaged boot.
2. Steering gear software possibly out of date.
Attachments
File
Description
001.pptx
Sub-fault code data
Remedy
1. Check steering gear for damage.
- Check boots on left and right for external damage. If any holes, cracks or other damage are found, the steering gear
must be replaced.
Note: In this case the problem was not caused by the manufacturer and the repair must not be billed under warranty
or goodwill!
03.06.2021 14:57:21
© Copyright Mercedes-Benz AG
JKANTAR
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2. If no noticeable problems were found in step 1, update software of electric power steering control unit (N68) via the
"Adaptations" menu item.
The part number of the optimized software is: A 167 902 95 05.
Symptoms
Chassis/suspension > Steering system > Function > Support
Chassis/suspension > Steering system > Function > Stiff/sluggish
Chassis/suspension > Steering system > Display message > Pow. steer. faulty Serviced Required
Control unit/fault code
Control unit
Fault text
N68 - Electrical power steering (ES)
P063507 - The electric power steering has a malfunction.
There is a mechanical fault.
N68 - Electrical power steering (ES)
P063507 - The electric power steering has a malfunction.
There is a mechanical fault.
Operation numbers/damage codes
Op. no.
Operation text
540991
CONTROL UNIT:....... INSTALL SOFTWARE (AFTER QUICK TEST)
03.06.2021 14:57:21
© Copyright Mercedes-Benz AG
Time
Damage
code
Note
4649490
JKANTAR
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