A441557 2022563-

Technical Service Bulletin
44 Steering wheel shimmy, vibration, and/or oscillation
44 15 57 2022563/12 October 5, 2015. Supersedes Technical Service Bulletin Group 44 number 14-56 dated
December 8, 2014 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
All
2008 - 2016
All
Not Applicable
Condition
REVISION HISTORY
Revision
Date
Purpose
12
-
Revised attachments (Updated Tire Data Sheet)
11
12/8/2014
Revised header data (Added models and model years)
Revised Service (Revised instructions)
Revised attachments (Updated Tire Data Sheet)
10
5/14/2014
Revised attachments (Updated Tire Data Sheet)
• Customer feels vibration in the seat, vehicle floor, footwell, pedals, or steering wheel. This condition does not
lead to any handling concerns or loss of vehicle control.
• Customer feels the vibration while driving at highway speeds from 55 – 80 mph (88 – 128 km/h).
Tip: This bulletin is not applicable if this vehicle has a Repair Authorization on this topic. If an applicable
Repair Authorization is not followed, the claim will not be paid.
Technical Background
The vibrations felt by the customer could be a result of the harmonic vibrations caused by the radial force
variation (RFV) of the tires or an imbalance of the wheel and tire assembly.
Tire RFV (also referred to as tire uniformity):
To understand the effects of RFV, imagine the tire as a collection of springs between the rim and the tire
tread. If the “springs” are not uniform stiffness, a varied force is exerted on the axle as the tire rotates and
flexes (Figure 1). This creates a vibration in the vehicle.
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Audi of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior
expressed written permission of the publisher.
Technical Service Bulletin
Figure 1. Vibration source from radial force variation (A).
The table below explains common causes of wheel-related and tire-related vibrations in the vehicle. Refer
to Elsa>>Wheel and Tire Guide >> Diagnosis and Testing for further diagnostic procedures and other
possible causes of vibration.
Vibration Description
Possible Cause
Vibration felt in the steering wheel while at
constant speed
Increased radial forces or imbalance on the
front tires
Vibration in the entire vehicle
Increased or critical radial forces or imbalance
on the rear tires and possible on the front tires.
Tip: Tires with higher mileage and/or wear should be inspected to determine the best correction for the issue
(repair or replacement). Tire life and condition should be determined prior to starting any diagnosis or repair for a
vibration.
Production Solution
Not applicable.
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All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of
Audi of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior
expressed written permission of the publisher.
Technical Service Bulletin
Service
Note that for all warranty vibration repairs, a completed Tire Data Sheet and Hunter RFV printouts must be
retained for warranty claim payment. Failure to do so will result in non-payment of the claim.
Sections 1-4 must be completed in their entirety and in the order listed:
1. Prepare Tires for RFV Measurement:
Tip: Flat spots are not a sign of a defect and therefore are not a warrantable condition. More information
about flat spots is available in Elsa under Repair Manual >> Suspension, Wheels, Steering >> Wheel and Tire
Guide >> 44 Wheels, Tires, Wheel Alignment >> Diagnosis and Testing >> Wheel and Tire Vibration >> Tire Flat
Spots from Standing.
Temporary flat spots falsify the radial force fluctuation and must be driven out before the balance and the radial
force are checked. Flat spots develop after a warm tire has cooled down after a stationary period of a few hours.
Flat spots vary based on the type, size, and make of the tire.
• To eliminate temporary flat spots:
• Set all tire pressures according to the owner’s manual based on customer’s requirements (normal load vs.
full load).
• Test drive the vehicle a distance of at least 12-15 miles at various speeds (up to 62 mph). Some tires may
require longer test drives to eliminate these temporary flat spots.
• Raise the vehicle on a lift/hoist immediately after the test drive in order to check the balance and RFV
before the tires cool down again.
2. Measure RFV and balance:
• Ensure that the contact surfaces of the tire balancer flange
and wheel are clean. It is mandatory that the appropriate
centering collet (Figure 3, A)--not a cone (Figure 3, B)--and
a five-finger style clamping plate (Figure 4, A) are used to
mount the wheel on the balancer.
Use of these tools ensures proper centering and mounting
of the wheel on the balancer. Audi-recommended collets
can be ordered through Equipment Solutions (part number
HUN2018451).
An incorrect style of clamp could damage the wheel (Figure
4, C).
Figure 3. Example of a collet (A) vs. a centering
cone (B).
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All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of
Audi of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior
expressed written permission of the publisher.
Technical Service Bulletin
Figure 4. Five-finger style clamping plate (A),
wheel properly mounted with a five-finger style
clamp (B), and wheel mounted using an
incorrect clamping tool/method (C).
• Set the tire pressure of each wheel to 36 psi (2.5 bar). Use this pressure during all measurements.
• Perform a CenteringCheck to ensure that the wheel has been properly mounted on the VAS 6230/Hunter
®
GSP9700 Road Force Measurement system.
®
• With the SmartWeight feature turned on, measure the RFV and balance of the wheel and tire assembly. This
feature will check both static (hop) and couple (wobble) vibrations to give the best possible weight and
placement. Do not use “Quick Match” mode since it does not measure radial force.
®
3. Optimize RFV and balance:
Tip: If a tire needs to be repositioned (match-mounted) on a wheel, use adequate lubrication to properly
seat the tire on the wheel:
• Not enough lubricant can prevent the tire from properly seating on the wheel.
• Excessive lubricant may cause the tire to slip on the wheel, impacting the balance and RFV values.
Correct the balance and, if necessary, reduce RFV by match-mounting each wheel according to the instructions
from the machine. Use 18lbs (80N) or less for the first harmonic vibration as the maximum. If the first harmonic of
the radial force of the tire that is the source of the vibration cannot be reduced to 18lbs (80N) or less, it should be
replaced.
After balancing and/or optimizing the RFV, perform a “check-spin” to ensure balance values are consistent. If
consistent values cannot be obtained, check the following:
• Calibration of the machine.
• Wheel and tire assembly mounting to the machine.
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All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of
Audi of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior
expressed written permission of the publisher.
Technical Service Bulletin
4. Reinstall Wheel and Tire Assemblies:
Follow the instructions in Elsa under Repair Manual >> Chassis >> Wheels and Tire General Information >> 44
Wheels, Tires, Wheel Alignment >> Wheels/Tires/Tire Pressure Monitoring Assembly >> Wheel, Changing and
Mounting.
Install the wheels according to VAS 6230 instructions for lowest vibration. The wheel/tire assembly with the lowest
road force values should be installed closest to the driver:
• Lowest road force value: Left front
• Second-lowest road force value: Right front
• Third-lowest road force value: Left rear
• Highest road force value: Right rear
• Set all tire pressures according to the owner’s manual based on customer’s requirements (normal load vs. full
load).
• Test drive the vehicle at the speed at which the customer felt the vibrations to verify that the condition is
repaired.
If vibration is still present:
Open a TAC ticket and include the following for each wheel and tire assembly:
• A completed Tire Data Sheet (attached to this TSB)
• A copy of the RFV printout from the VAS 6230/Hunter GSP9700 Road Force Measurement system
®
If any of the documents cannot be uploaded to the TAC ticket, email them to [email protected] and state in the
TAC ticket that these documents were emailed instead of being attached.
The e-mail subject line must include the TAC Access Code and the complaint.
• Example: 1234567_Tire vibration
Failure to upload the RFV printouts will result in non-payment of the claim.
© 2015 Audi of America, Inc.
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All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of
Audi of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior
expressed written permission of the publisher.
Technical Service Bulletin
Warranty
Claim Type:
Use applicable claim type. If vehicle is outside any warranty, this Technical Service Bulletin
is informational only.
Service Number:
4412
Damage Code:
0013
Labor Operations:
Balance and radial force balance all 4 wheels (A copy of the 4412 9999
before-and-after radial force and balance values must be
attached to the Repair Order).
190 TU
Includes additional time for extended road test prior to
service procedure.
2 wheels, remove and reinstall
4405 2000
20 TU
(per axle)
Diagnostic Time:
GFF
No allowance
0 TU
Road test prior to service procedure
0121 0002
10 TU
Road test after service procedure
0121 0004
10 TU
Technical diagnosis at dealer’s discretion
(Refer to Section 2.2.1.2 and Audi Warranty Online for DADP allowance details)
Claim Comment:
As per TSB #2022563/12
All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures
Manual. Claims are subject to review or audit by Audi Warranty.
Tire Warranty
Audi of America, Inc. does not warranty tires originally installed or sold as replacement for use on Audi
vehicles. Individual tire manufacturers provide all the underlying tire warranties.
Please refer to Audi Tire Center website for tire warranty coverage and claim submission details.
© 2015 Audi of America, Inc.
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All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of
Audi of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior
expressed written permission of the publisher.
Technical Service Bulletin
Required Parts and Tools
Tools
• Use VAS 6230/Hunter GSP9700 Road Force Measurement® System to check balance, Road Force values,
and to make necessary adjustments.
• Use centering collet in conjunction with VAS 6243 model-specific clamping plate (5 finger clamping device) or
similar device to ensure proper mounting of wheel and to prevent damage to wheels.
• Vetronix MTS 4100 NVH Analyzer is helpful when diagnosing vibration concerns and can help narrow the list of
possible sources of the vibration.
Additional Information
More information can be found in the following resources:
• ElsaWeb: Wheel and Tire Guide >> Diagnosis and Testing
• SSP: Noise, Vibration, and Harshness 961403
The following repair procedure(s) will be necessary to complete this procedure:
• Chassis >> Wheel and Tire Guide >> Diagnosis and Testing
All parts and service references provided in this TSB (2022563) are subject to change and/or removal. Always
check with your Parts Department and service manuals for the latest information.
© 2015 Audi of America, Inc.
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All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of
Audi of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior
expressed written permission of the publisher.
Tire Data Sheet
1. Customer complaint
(e.g.: speed range, vibrations in the whole vehicle, vibrations (only) in the steering wheel, while accelerating/decelerating,
vibrations (only) while braking, vibrations permanent/only at starting phase.)
2. Vehicle data
Make:
Mileage of affected tires:
VIN:
TAC access code:
Model type, description:
Delivery date:
miles
3. Tire data (cold tires - prior to diagnosis)
Tires are:
factory-installed OEM
OEM replacement
Tire brand:
Size:
Aftermarket
Tire model:
Manufacturer labeling:
(e.g.: AO, AOE, R01)
Make and model of tire balancer:
Last inspection date of tire balancer:
front/left
front/right
ok
not ok
ok
not ok
rear/left
rear/right
DOT (last four characters)
Tire pressure (PSI)
Required tire pressure according
to owner’s manual
ok
not ok
ok
not ok
Tread depth (mm)
(outside / center / inside)
Attached weights
(inside edge / outside edge)
Tire damage
Wheel damage
4. Tire data (warm tires)
Tires must be warmed prior to the radial-force variation (RFV) measurement!
(Preliminary test drive: at least 12mph with a top speed of ≥ 62mph for 15 miles)
front/left
front/right
rear/left
rear/right
Tire pressure (PSI)
Before / After
RFV first harmonic (lbs)
Before / After
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