39 Bevel box separation point is leaking
39 20 31 2059759/1 June 12, 2020.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

Q3

2015 - 2020

All

Quattro

Condition
Customer states:
 There is an oil leak from the front end or the engine compartment.
Workshop findings:
 The customer statement can be confirmed.
 The oil leak can be seen along the case seam of
the bevel box (Figure 1), on the passenger side of
the propeller shaft on side that faces the engine. It
should be in-between the two bolts in the picture
below marked with arrows (Figure 2). These bolts
connect the bevel box to engine bracket (Figure 3
Position 1).

Figure 1. Bevel box case seam leak location.

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© 2020 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.

Figure 2. Bolt locations.

Figure 3. Bolt locations position # 1.

Technical Background
Not applicable.

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© 2020 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.

Production Solution
Not applicable.

Service
If the condition above is confirmed perform the following the repair.
1.

Remove the bevel box according to the Elsa repair manual.

2.

Thoroughly clean the bevel box in the area of the case seam (Figure 1) and the two housing bolts holes
(Figure 2 and Figure 3).
Tip: The old sealant must be completely removed, for example, with a scraper or knife.

3.

Apply silicone sealant (part number
D 174 003 M2) to the case seam
(Figure 4, yellow arrows). Apply a
continuous seam of the silicone with
a width of about 10 mm (Figure 4,
red lines) and a height of about 3
mm.

Figure 4. Silicone sealant application.

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© 2020 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.

4.

Apply silicone sealant (part number
D 174 003 M2) continuously to the
holes of the housing bolts just
before installation (Figure 5, red
circles).

Figure 5. Silicone sealant at bolt holes.
5.

Continuously apply the silicone
sealant to the shoulder of the
removed housing bolts just before
installation to form a seal at the
engine bracket (Figure 6, position
1).

Figure 5. Bolts and engine bracket.
6.

Reinstall the bevel box according to the repair manual.

Page 4 of 6
© 2020 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.

Tip: The sealant needs to harden for 2 hours before the powertrain is allowed to come up to operating
temperature. The vehicle can be operated to remove from a hoist and parked elsewhere while the sealant
hardens. After the sealant has hardened, test drive and confirm that the leak has been repaired.

Warranty
Claim Type:

 110 up to 48 Months/50,000 Miles.
 G10 for CPO Covered Vehicles – Verify Owner.
 If vehicle is outside any warranty, this Technical Service Bulletin is informational
only.

Service Number:

3970

Damage Code:

0050

Labor Operations:

Remove and install bevel box

3970 19XX

See SRT

Clean bevel box

3970 2999

10 TU

Seal bevel box

3970 5199

30 TU

Check bevel box (recheck for leaks)

3970 0199

30 TU

GFF

No allowance

0 TU

Road test prior to service procedure

No allowance

0 TU

Road test after service procedure

No allowance

10 TU

Diagnostic Time:

Claim Comment:

As per TSB #2059759/1

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
Always check with your Parts Department and/or ETKA for the latest information and parts bulletins.
Part Number

Part Description

Quantity

D 174003M2

Silicone sealant

0.5

See ETKA

Fasteners, Bolts, Nuts, and Screws as needed per the
Repair Manual

See ETKA/ELSA

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© 2020 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.

Additional Information
All parts and service references provided in this TSB (2059759) are subject to change and/or removal.
©2020 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.

Page 6 of 6
© 2020 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.