Technical Service Bulletin
35 0B5 7 Speed S-tronic, leaks from transmission
35 13 12 2028085/4 June 18, 2013. Supersedes Technical Service Bulletin Group 35 number 13-09 dated April 1,
2013 for reasons listed below.
Model(s)

Year

S4

2010-13

S5 Cab

2010-13

S5 coupe

2013

RS5

2013

S6

2013

S7

2013

VIN Range

Vehicle-Specific Equipment

All

0B5 S-Tronic transmission

Condition
REVISION HISTORY
Revision

Date

Purpose

4

-

Revised header data (Updated customer codes)

3

4/1/2013

Revised Service (Added illustration, clarified steps)
Revised header data (Added models and model years)
Revised Warranty (Removed incorrect information)

2

3/26/2013

Revised Service (Added case leak repair procedure)
Revised Warranty (Added labor for case leak repair)
Revised Required Parts and Tools (Added parts for case leak repair)

1

11/30/2011

Original publication

Customer may report that there is oil leaking under the vehicle.

© 2013 Audi of America, Inc.

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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
Technical Background
There are a number of possible sources for the leak, including:
• Leaking from the oil pan seal (Figure 1).

Figure 1. Leak on the oil pan seal (red arrows).
• Crack in the oil pan (Figure 2).

Figure 2. Crack in the oil pan.

© 2013 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
• Leak between gearbox housing and
intermediate housing (Figure 3).

Tip: The source of the leak may be
confused with o-ring of drain plug.

Figure 3. Leak between gearbox housing and intermediate
housing.

Production Solution
Not applicable.

Service
1. Locate the leak by first thoroughly cleaning
and drying the stained area. Then, apply
talcum spray (or similar) to the area that
was stained with oil (Figure 4).

Figure 4. Leak located with Talcum spray.
2. Warm up the vehicle (test drive) and re-check for leaks.
3. If the leak is around the oil pan, remove the oil pan and check the gasket for imperfections or damage. If the
oil pan is undamaged, only replace the oil pan seal.

© 2013 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
4. If the oil pan is damaged (Figure 5), check the
mechatronics for loose bolts (Figure 6). Replace
any loose bolts and torque according to the repair
manual instructions. Also, replace the pan and
seal.

Figure 5. Damaged oil sump because of loose bolts.

Figure 6. Loose bolts in the mechatronics.

© 2013 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
5. If pan is cracked as in Figure 2, and no loose bolts on the mechatronics unit are found, replace oil pan and
seal.
6. If there is a leak between gearbox housing and intermediate housing as in Figure 3, reseal the case by
following instructions in Elsa >> Repair manual >>Transmission >>S Tronic Transmission Internal
Components >>35 Gears, Shafts >>Removal and Installation >> Sensor Module with Transmission Input
Speed Sensor -G612-, -G632-, -G676- and Circuit Board 3.
Note: These instructions require transmission case disassembly. Audi Academy course # 950224 is
required viewing before attempting repair service. Complete the course and the assessment # 950224B before
attempting repair or warranty claim may be denied. The course and assessment can be found on the Audi
Academy CRC site.
Tip: Use caution when lifting or
lowering intermediate housing to avoid
damage to components (Figure 7).

Figure 7. Caution points: drip tray Sensor module connector.
7. Assemble according to the repair manual and check/correct the oil level.

© 2013 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:

3435

Damage Code:

0050

Labor Operations:

Leaking around pan:
Inspect pan and gasket
for damage

3460 1999

10 TU

Pan gasket faulty no pan damage:
Remove and install oil
pan replace gasket.

3460 1900

160 TU

Check mechatronics
bolts, replace bolts and
re-torque if needed.

3511 1999

30 TU

Remove and replace oil
pan with new gasket

3460 1900

160 TU

3435 19xx

See ELSA for appropriate
TUs.

Pan damaged:

Case leaking:
Remove and install
gearbox

Diagnostic Time:

Reseal transmission case 3512 1950
leak

570 TU

Clean off oil and
determine leak origin;
includes one test drive.

3435 9999

90 TU

GFF to perform basic
setting and adaptation
after sensor
replacement only

0150 0000

Time stated
on diagnostic
protocol (Max
100 TU)

Road test prior to service
procedure

© 2013 Audi of America, Inc.

No allowance

0 TU

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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
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 2028085/4

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.

© 2013 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
Part Number

Part Description

Quantity

0B5321361C

Transmission pan (only if cracked/damaged)

1

0B5321371E

Gasket for transmission pan

1

N 10405702

Bolts for Mechatronics unit

6

G052529A2

Dual clutch gearbox oil (ATF)

Up to 7.5 Liters

Parts needed for case leak reseal ( in addition to above)
G052513A2

Final Drive oil (MTF)

5.0 Liters

0B5927321F

Module

1

0B5321391A

Harness

1

AMV18800102

Sealing paste

1

0B5301515H

Pump with seals

1

WHT001955

Bolt

1

WHT002459

Bolt

28

WHT001958B

Bolt

2

0B5301227C

Seal kit

1

0B5323525B

O-ring

1

0B5311113F

Seal

1

0B5315105TC

Oil pipe with seals

1

0B5315105TA

Oil pipe with seals

1

0B5325571

Sleeve with seals

1

0B5311944B

Seal

4

0B5321473

Oil pipe

1

WHT003380

Seal

1

WHT003379

Seal

1

0B5301311E

Oil drip tray (Replace if broken)

1

© 2013 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
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.

© 2013 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.