Technical Service Bulletin
19 A8 4.2 FSI - Coolant leak in Engine compartment
19 13 34 2028574/2 February 5, 2013. Supersedes Technical Service Bulletin Group 19 number 12-29 dated
February 7, 2012 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

A8 (D4) 4.2 FSI

2011

000001 - 999999

CDRA Engine Code

A8 (D4) 4.2 FSI

2012

000001 - 012090

CDRA Engine Code

Condition
REVISION HISTORY
Revision

Date

Purpose

2

-

Revised Warranty (corrected error in Labor Operations code)

1

1/26/2012

Original publication

• Coolant level warning light on.
• Coolant loss in the engine compartment.
• Smell of evaporated coolant from engine compartment.

Technical Background
The possible cause is a leak on the tee connector hose located in the coolant pipe between alternator, coolant
pipe, and oil cooler.

Production Solution
Optimized parts fitted in production.

© 2013 Audi of America, Inc.

Page 1 of 3

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
Service
Pressurize cooling system. Check the tee
connector hose (part number 079121448) in the
coolant circuit for leaks, and replace if
necessary.

Figure 1. Connector hose (7).

Warranty
Claim Type:

Use applicable claim type. If vehicle is outside any warranty, this Technical Service Bulletin
is informational only.

Service Number:

1962

Damage Code:

0050

Labor Operations:

Pressure test and check tee connector hose
visually for leak

1962 1950

20 TU

Replace coolant hose

1962 5599

190 TU

GFF

No allowance

0 TU

Road test prior to service procedure

No allowance

0 TU

Road test after service procedure

No allowance

0 TU

Diagnostic Time:

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 #2028574/2

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

© 2013 Audi of America, Inc.

Page 2 of 3

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

079121448

Coolant hose

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.

© 2013 Audi of America, Inc.

Page 3 of 3

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.