19 Low coolant light is on but the coolant level is within specifications
19 21 19 2061918/3 June 30, 2021. Supersedes Technical Service Bulletin Group 19 number 21-12 dated March
2, 2021 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

All

2017 - 2021

All

Not Applicable

Condition
REVISION HISTORY
Revision

Date

Purpose

3

-

Revised title
Revised Technical Background (Updated phrase)
Revised Service (Updated Steps)
Revised Warranty (Removed Labor Operation)

2

03/02/2021

Revised Warranty (Removed Labor Operation)

1

01/29/2021

Initial publication

Customer states:
 The coolant warning light appears in the instrument cluster.
Workshop findings:
 When checking the coolant level visually on the coolant expansion tank the level is between minimum and
maximum as it should be.

Technical Background
Due to the large coolant circuit capacity, there is significant fluctuation in the coolant level when the coolant cools
down and heats up. If the coolant circuit is incorrectly filled or bled, this can lead to sporadic illumination of the low
coolant level warning light.

Production Solution
Not applicable.

Page 1 of 3
© 2021 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.

Service
To diagnose the concern, please follow the steps below:
1. The coolant level in the expansion tank must be set/checked according to the Elsa repair manual while the
engine is cold.
2. The connector (including pins and contacts) should be checked carefully.
3. The contact surface of the pins and connector must be free of dirt and must not be damaged.
4. After unplugging and plugging the connector back in, perform a key cycle and check if the concern returns
again. If it does then continue with normal diagnosis outside of this TSB.

Warranty
Claim Type:

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

Service Number:

1940

Damage Code:

0040

Labor Operations:

Check coolant expansion tank

1940 0199

30 TU

Diagnostic Time:

GFF

No allowance

0 TU

Road test prior to the service procedure

No allowance

0 TU

Road test prior to the service procedure

No allowance

0 TU

Claim Comment:

As per TSB #2061918/3

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.

Additional Information
Always check with your Parts Department and/or ETKA for the latest information and parts bulletins. Please check
the Repair Manual for fasteners, bolts, nuts, and screws that require replacement during the repair.
©2021 Audi of America, Inc. All rights reserved. The 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

Page 2 of 3
© 2021 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.

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 3 of 3
© 2021 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.