461335201713011

Technical Service Bulletin
46 Brakes squeal
46 13 35 2017130/11 April 2, 2013. Supersedes Technical Service Bulletin Group 46 number 11-16 dated
December 9, 2011 for reasons listed below.
Model(s)
Year
TT (without TT RS)
2008 – 2013
A3
2006 – 2013
A4 (B6/B7)
2005 – 2008
A4 Cabrio (B6/B7)
2005 -2009
A6 (C6)
2005 – 2011
A8 (D3)
2004 – 2010
Audi Q7
2007 – 2013
VIN Range
Vehicle-Specific Equipment
All
Not applicable
Condition
REVISION HISTORY
Revision
Date
Purpose
11
-
Revised header data (Removed models)
Revised Warranty (Modified Diagnostic Time)
10
12/9/2011
Revised header data (Removed and added models)
9
3/10/2011
Revised header data (Added models)
Revised Service
8
5/5/2010
Revised header data (Removed models)
Revised Warranty (Modified Diagnostic Time)
7
2/26/2010
Revised Warranty (Modified Diagnostic Time)
Revised header data (Added model years)
6
11/20/2009
Revised Warranty
5
8/17/2009
Revised Service (Brake disc, cleaning, Brake caliper, cleaning )
Page 1 of 6 plus attachment
© 2013 Audi of America, Inc.
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
2/17/2009
Revised header data (Added model years)
Revised Warranty (Claim Type)
3
12/16/2008
Revised Title to add Repair Group
Customer complains of brake squeal.
Technical Background
Not applicable.
Production Solution
Not applicable.
Service
Note:
Before proceeding with any of the following steps, check the overall condition of the brakes. If the following
conditions exist, this TSB does not apply:
1. Brake discs or brake pads are close to or below their wear limit.
2. Rotors are covered with excessive rust due to long periods of the vehicle not being driven.
3. Foreign bodies between brake disc and brake pad, such as small stones, grit, or sand.
4. Rotors are severely grooved.
5. Aftermarket pads or rotors.
For vehicles within the New Vehicle Limited Warranty, Audi of America is requesting your cooperation in
supplying us with technical information regarding this condition.
1. Verify the brake noise with a test drive.
2. Complete the attached Brake Noise Questionnaire.
3. Obtain a sound recording of the brake noise (a cell phone recording is OK as long as the noise can be clearly
identified).
4. Email the questionnaire and sound recording to: [email protected].
Warning:
Never use compressed air to clean brake dust from a brake system.
Page 2 of 6 plus attachment
© 2013 Audi of America, Inc.
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
Perform the braking sequence as follows:
Brake disc, cleaning
1. With careful consideration of the traffic situation, perform 2-3 ABS stops (e.g. from speeds above 50 MPH).
Between each stop, please allow the brake components to cool. (Drive vehicle for more than 1 minute at
speeds greater than 50 MPH.)
2. If necessary, perform additional ABS stops allowing the brakes to cool between each stop (max. 5). Only
proceed to the next step (Brake pad, cleaning) if the brake noise was not eliminated.
Brake pad, cleaning
1. With the wheels removed, mark the position of each brake pad to ensure reinstallation in the same position.
Work on one brake at a time to avoid mixing up parts.
2. On some models, the front brake pads are glued to the brake caliper. Do not remove the pads for this
procedure. Treat the pad as described in this TSB with it attached to the brake caliper. If these pads are
unglued they must be replaced.
3. Some front/rear brake pads have an anti-vibration backing plate (non-sticky). Do not remove this type of
backing plate.
4. Use Guided Functions to release the rear brake calipers for vehicles with Electronic Parking Brake (EPB). It
is not necessary to re-adapt the parking brake for this procedure.
5. Clean face of the brake pad with sandpaper (Figure 2).
Figure 2.Cleaning face of the brake pad
with sandpaper.
Page 3 of 6 plus attachment
© 2013 Audi of America, Inc.
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
5. Clean all grooves with a suitable workshop hand tool (Figure
3).
Figure 3. Clean brake pad groove.
6. Slightly chamfer edges of brake pads with a file (Figure 4).
Figure 4. Chamfering brake pad edge.
Brake caliper, cleaning
Note:
The following steps require a thin coat of Plastilube Moly3® high temperature grease to be applied to various
parts of the brakes. This grease must never come in contact with:
 The braking surface of the brake pads or brake discs.
 The caliper piston.
These areas must always be free of grease.
Page 4 of 6 plus attachment
© 2013 Audi of America, Inc.
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. Thoroughly clean all contact points (Figure 5) where the brake
pad backing plate makes contact with the brake caliper and/or
the brake carrier.
Figure 5. Contact points to be lubricated.
Reassembly
1. Prior to reinstalling the brake pads, apply a thin coat of Plastilube Moly3® high temperature grease to contact
points (Figure 5) where the brake pad backing plate makes contact with the brake caliper and/or the brake
carrier.
2. For brake pads that have springs (common on rear brake pads), apply a thin coat of Plastilube Moly3® high
temperature grease to the springs where they make contact with the brake caliper.
Page 5 of 6 plus attachment
© 2013 Audi of America, Inc.
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:
Front - 4636
Rear - 4638
Damage Code:
0020
Labor Operations:
Brake pads, front - convert
4636 9999
90 TU
Brake pads, rear - convert
4638 9999
100 TU
Diagnostic Time:
GFF – release rear brake calipers
0150 0000
Only applicable to vehicles with EPB:
A8(D3) & A6(C6)
Time stated on
diagnostic protocol
(Max 50 TU)
Front road test
4636 8099
25 TU
Rear road test
4638 8099
25 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 #2017130/11
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.
Required Parts and Tools
Part Number
Part Description
ZVP264103
Plastilube Moly3®
Additional Information
All parts and service references provided in this TSB are subject to change and/or removal. Always check with
your Parts Department and service manuals for the latest information.
Page 6 of 6 plus attachment
© 2013 Audi of America, Inc.
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.
Questionnaire - Brake Complaint: Acoustics, Noise
Vehicle Data:
Auburn Hills
Type:
Registration Date:
Dealer:
VIN:
Milage:
Name
Auburn Hills
Engine No.:
special equipment
(tow bar, Tuning etc)
Tel.-No.:
248 754
BA ID:
Rep-Date:
Test drive:
yes
done:
Type of noise (if possible):
Customer complaint confirmed:
when does the noise occur?
forward drive:
"Moo"-noise
yes
no
where does the noise occur?
reverse:
Motorway
grinding / scraping
Squeaking
creaking
Rattling
always
light braking
stop
often
hard braking
(e.g. traffic light)
rarely
without braking
Driving bends
very rarely
emergency braking
country / A-roads
Town
Notes
Where does the noise possibly come from?
exact location, if possible:
back
don`t know
Notes
front
Noise-Level:
Does the complaint occur after standing?
no
if yes, after what time of stand still?
was the handbrake, pedal
for parking brake activated?
hours
Is the noise still present after several brakings:
no
Residual thickness of the brake pads:
%
Notes
yes
yes
no
%
Notes
Residual thickness of the brake discs:
State of the brake discs:
scores outside
o.k..
rusty
scores inside
completely scored
Hotspots
Speed (range):
from / at
mph
to
mph
Outside Temperatures (range):
F°
from / at
F°
to
Weather:
wet
weather:
dry
Snow
Type / state of roads:
rough surface
Please create a noise file!
since when does the noise occur?
from the beginning
just recently
Conditions of use?
Taxi
Driving school
Rental car
Others:
Notes:
which measures / repairs have been carried out?
repeated repairs:
yes
no
Notes:
which
cobbles
since milage
Notes
smooth surface