Technical Service Bulletin
35 0B5 7 Speed S-tronic, leaks from transmission
35 12 07 2028085/2 December 21, 2012. Supersedes Technical Service Bulletin Group 34 number 11-07 dated
November 30, 2011 for reasons listed below.
Model(s)

Year

S4

2010-12

S5 Cab

2010-12

VIN Range

Vehicle-Specific Equipment

All

0B5 S-Tronic transmission

Condition
REVISION HISTORY
Revision

Date

Purpose

2

-

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: Oil leaking under vehicle.

Technical Background
Before the repair can be performed the source of the leak must be located.
Possible points include:

Page 1 of 8
© 2012 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
 Leaking from the oil pan seal.

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

Figure 2. Crack in the oil pan.
 Leak between gearbox housing
and intermediate housing
Note:
Can be confused with O-ring of
drain plug.

Figure 3. Leak between gearbox housing and
intermediate housing.

Page 2 of 8
© 2012 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
Production Solution
Not applicable.

Service
Locate leak:
1. Thoroughly clean the
stained area.
2. Dry.
3. Apply talcum spray, or
similar, (Figure 4) to
the area that was
stained with oil.
4. Warm up the vehicle

Figure 4. Leak located with Talcum spray.

(test drive) and
recheck for leaks.
5. If the leak is around the oil pan, remove the oil pan and check the gasket for imperfections
or damage (Figure 1). If the oil pan is undamaged, only replace the oil pan seal.
6. If the oil pan is damaged as in Figure 2 or 6, check the mechatronics for loose bolts (Figure
5). Replace any loose bolts (Figure 5) and torque according to the repair manual
instructions. Also, replace the pan and seal.

Page 3 of 8
© 2012 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
7. If pan is cracked as in
Figure 2, and no loose
bolts on the
mechatronics unit are
found, replace oil pan
and seal.

Figure 5. Loose bolts in the Mechatronics.

Figure 6. Damaged oil sump because of loose bolts.
8. 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..

Page 4 of 8
© 2012 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
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.
This 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.
9. Assemble according to the repair manual and check/correct the oil level.

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

3460 1999

10 TU

for damage

Page 5 of 8
© 2012 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
Pan gasket faulty no pan damage:
Remove and install oil

3460 1900

160 TU

3511 1999

30 TU

3460 1900

160 TU

3435 19xx

See ELSA for appropriate

pan replace gasket.
Pan damaged:
Check Mechatronics
bolts, replace bolts and
re-torque if needed.
Remove and replace oil
pan with new gasket
Case leaking:
Remove and install
gearbox

TUs.

Reseal transmission case 3512 1950

570 TU

leak
Diagnostic Time:

Clean off oil and

3435 9999

90 TU

0150 0000

Time stated

determine leak origin,
includes one test drive.
GFF to perform basic
setting and adaptation

on diagnostic

after sensor replacement

protocol (Max

only

100 TU)

Road test prior to service

No allowance

0 TU

0121 0004

10 TU

procedure
Road test after service
procedure
Technical diagnosis at dealer’ s discretion
(Refer to Section 2.2.1.2 and Audi Warranty Online for DADP allowance details)

Page 6 of 8
© 2012 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
Claim Comment:

As per TSB 2028085/2

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.
This damage is due to outside influence and is not covered by any Audi warranty.

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

Page 7 of 8
© 2012 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
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

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 8 of 8
© 2012 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.