LI40.10-N-070401

Steering wheel vibrations in vehicle speed range between 70 - 80 mph
Topic number
LI40.10-N-070401
Version
1
Function group
40.10 Wheels, tires
Date
10-11-2019
Validity
Model 906
Reason for change
Reason for block
Complaint:
Steering wheel vibrations in specified vehicle speed range. Vehicle vibrations can also be felt.
Note:
This document superseeds LI40.10-N-048693
Cause:
Radial force variations and/or imbalance in the front wheels are transferred to the steering wheel/vehicle in the form of
vibrations.
Note:
Tires not recommended by Mercedes-Benz can aggravate this problem.
Remedy:
The complaint must be reproduced by means of a test drive.
If it is not possible to reproduce the complaint, contact the customer. Otherwise, process the following points one after
the other.
1) Check wheels for damage and tire inflation pressure. Replace any damaged, unusable wheels. Correct the tire inflation pressure. Perform a test drive if the deviations are greater than 0.5 bar.
2) Check radial force variation (RFV) of the front wheels on a suitable machine (see attachment for example) (target:
RFV < 90N), file measurements in a tamperproof manner. Match the wheels if this value is exceeded.
3) Balance wheels on wheel balancing machine.
4) Mount the wheels. Ensure that they are seated centrally and tighten the wheel studs/wheel nuts finger-tight in a
crosswise pattern, then tighten to the required tightening torque.
5) Perform test drive. If the problem is still present, continue with step 6).
6) Check whether the specified steering gear is installed, replace if necessary.
7) Perform test drive.
Attachments
File
Description
Maschine zur Bestimmung der RKS.jpg
Example of a machine for determining RFV
Symptoms
Chassis/suspension / Noises / Vibrates
Chassis/suspension / Steering system / Steering wheel / Vibrates
Chassis/suspension / Steering system / Steering wheel / Torsional vibrations at steering wheel
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Parts
Part number
ES1 ES2 Designation
Quantity Note
A 906 460 13 00
80
1
Steering gear LHD
EPC
The steering gear is installed at the
plant as of chassis end number:
S325466 / N393897 / S562081
X
Operation numbers/damage codes
Op. no.
Operation text
Time
40-0000
ELIMINATE STEERING WHEEL VIBRATIONS
Damage
code
Note
40001 20
WIS-References
Document number
Title
Note
Allocation
GF40.10-D-0801HA
Installation survey of tires /
rims, production details
MODEL 906.#1#
Remedy
GF40.10-D-0801HB
Installation survey of tires /
rims, production details
MODEL 906.#3#
Remedy
GF40.10-D-0801HC
Installation survey of tires /
rims, production details
MODEL 906.#5#
Remedy
GF40.10-D-0801HD
Installation survey of tires /
rims, production details
MODEL 906 with code ZM1 Remedy
Validity
Vehicle
Engine
Transmission
Sprinter III
*
*
Attachments
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© Copyright Daimler AG
BSTRINE
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Maschine zur Bestimmung der RKS.jpg:
10-11-2019 4:09 PM
© Copyright Daimler AG
BSTRINE
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