A441450 2022563-

Technical Service Bulletin
44 Steering wheel shimmy, vibration, and/or oscillation
44 14 50 2022563/10 May 14, 2014. Supersedes Technical Service Bulletin Group 44 number 14-49 dated April
17, 2014 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
All
2008 - 2013
All
Not Applicable
A5, A5 Cabriolet,
A6, A7, A8, TT, Q5,
Q7, R8
2014
All
Not Applicable
Condition
REVISION HISTORY
Revision
Date
Purpose
10
-
Revised attachments (Updated Tire Data Sheet)
9
4/17/2014
Revised header data (Removed models)
Revised Condition (Updated Tip)
8
11/21/2013
Revised Condition (Removed scenarios)
Revised Service (Revised instructions)
7
9/27/2013
Revised header data (Updated customer codes)
Revised Condition (Clarified description; added scenarios)
Revised Technical Background (Removed RFV description; added table and
reference to Elsa)
Revised Service (Revised instructions)
6
2/18/2013
Revised title (corrected ElsaWeb error)
• 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.
• The 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.
© 2014 Audi of America, Inc.
Page 1 of 7
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
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 (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.
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.
© 2014 Audi of America, Inc.
Page 2 of 7
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
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.
Service
Note that for all warranty vibration repairs, the Tire Data Sheet and Hunter RFV printouts must be completed and
retained for warranty claim payment. Tire Data Sheet and Hunter RFV printouts should be sent to
[email protected]. Failure to do so will result in non-payment of the claim.
1. Complete all of the following sections of this bulletin:
• Prepare Tires for RFV Measurement
• Measure Radial Force Variation and imbalance
• Reduce Radial Force Variation and imbalance
• Reinstall Wheel and Tire Assemblies
2. Only if vibrations are still present after completing all four sections, open a TAC ticket and include the
completed Tire Data Sheet and a copy of the Hunter RFV printouts from the VAS 6230 / Hunter GSP9700
®
Road Force Measurement system (Figure 2).
The data sheet must be completed before a TAC ticket is opened.
®
3. After a TAC ticket has been created, send the VAS 6230 / Hunter GSP9700 Road Force Measurement
system printouts and Tire Data Sheet to [email protected]. Failure to upload the Hunter RFV printouts will
result in non-payment of the claim.
The e-mail must include the following information:
• VIN
• Repair Order number or claim ID
• Mileage (from Repair Order)
• Dealer Code
Prepare Tires for RFV Measurement:
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.
The flat spots will vary based on the type, size, and make of the tire. If the vibration disappears after the tires are
warmed up, the following repairs may not be successful.
To eliminate temporary flat spots:
© 2014 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
1. Test drive the vehicle a distance of at least 12-15 miles at various speed ranges (up to 62 mph). Some tires
may require longer test drives to eliminate these temporary flat spots.
2. Raise the vehicle on a lift/hoist immediately after the test drive in order to check the balance and radial force
before the tires cool down again.
Tip: Flat spots are not a sign of a defect and therefore are not a warrantable condition.
Tip: 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.
Measure RFV:
1. Ensure that the tires are warm and the temporary flats spots have been eliminated.
2. Mount the wheels on the balancing machine, making sure that the contact surfaces of the flange and wheel
are clean.
Note:
It is mandatory that the appropriate centering
cone or collet (Figure 3) and a five-finger
style clamping plate (Figure 4, A) are used
when the wheel is being mounted on the
balancer.
A five-finger style clamp centers the wheel on
Figure 3. Example of collets (A and B), and centering cone (C).
the balancer in the same way the wheel is
centered on the vehicle (Figure 4, B).
An incorrect style of clamp could damage the
wheel (Figure 4, C).
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).
© 2014 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
Tip: Use adequate lubrication to ensure that tires are properly seated on the wheel. Do not use
excessive lubricant, which may cause the tire to slip on the wheel, impacting the balance and road force
values.
Tip: Audi recommends using the correct collet when mounting the wheel/tire on the balancing machine.
To order, please refer to Equipment Solutions (part number HUN2018451)
3. Perform a centering check to ensure the wheel has been properly mounted on the VAS 6230 / Hunter
®
GSP9700 Road Force Measurement system.
Tip: Do not use “Quick Match” mode; this mode does not measure radial force. Ensure that the “Smart
Weight” balance feature is on. This feature will check both static (hop) and couple (wobble) vibrations to give
the best possible weight and placement.
Reduce RFV:
1. Optimize the radial forces:
• Set the tire pressure of each wheel to 36 psi (2.5 bar).
Measure, balance, and, if necessary, force match each wheel according to the instructions from the machine.
Use 18lbs (80N) or less for the first harmonic vibration as the maximum.
Note:
If the first harmonic of the radial force of the tire that is the source of the vibration cannot be reduced to less
than 18lbs (80N), and the tire is an original factory-installed tire, it should be replaced.
Tip: After balancing the wheel/tire, perform a
“Check Spin” to ensure balance values are
consistent. If consistent values cannot be obtained,
conduct a calibration of the machine (Figure 5). This
operation is located in the “Logo” screen under
“Calibration”.
Figure 5. Back of balancer (A), calibration weight (B)
Reinstall Wheel and Tire Assemblies:
1. 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
© 2014 Audi of America, Inc.
Page 5 of 7
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
• Third-lowest road force value: Left rear
• Highest road force value: Right rear
Follow the instructions in Elsa under Repair Manual >> Running gear >> 44 wheels, tires, wheel alignment >>
Installation of wheels/ tires/ tire pressure warning >> Instructions on wheel change/installation.
2. Adjust tire pressure. Refer to the owner’s manual for appropriate “normal load” tire pressure. The pressure
displayed on the B pillar placard should only be used if vehicle is being operated at “full load”.
3. Test drive the vehicle at the speed at which the customer felt the vibrations to verify that the condition is
repaired.
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 4412 9999
copy of the 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 #2022563/10
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.
© 2014 Audi of America, Inc.
Page 6 of 7
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
Audi Tire Warranty Assistance Program (ATAP)
The Audi Tire Assistance Program is not an Audi of America, Inc. factory 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 warranty coverage and claim submission details.
Dealer Tire 1-866-487-2834
Audi warranty 1-866-677-AUDI
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.
© 2014 Audi of America, Inc.
Page 7 of 7
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.