17 UV additive for finding oil leaks
17 20 11 2060750/1 October 5, 2020.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

All

2000 - 2021

All

Combustion Engine

Condition
Customer states:
One or more of the following statements:
 There may be a smell in the engine compartment.
 An oil leak is present in the front end of the car or in the area of the engine compartment.
 Oil marks may be found under the car.
 There is engine oil loss.
Workshop findings:
 An oil leak can be found in the engine area.

Technical Background
This pigment supports the search for oil leaks from engines. The pigment of the fluorescent yellow leak search
additive makes leaks visible and is therefore ideal for finding oil leaks. The UV pigment mixes with the engine oil
and glows fluorescent yellow when the UV lamp shines onto the point of the leak. Depending on the intensity of
the leak, the engine oil may even be leaking at idle speed; very small leaks, on the other hand, can also require a
test drive. The additive can remain in the engine and is suitable for gas and diesel engines; an oil change is not
required.
Tip: Engine cleaning before following the instructions below is not necessary.
Note:
It can be used for all combustion engines. Do not use for locating transmission leaks.

Production Solution
Not applicable.

Page 1 of 3
© 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.

Service
1. Add 4 ounces of leak search additive G 052 940 A1 to the engine via the oil filler neck. 4 ounces is sufficient
for up to 1.4 gallons of engine oil. For larger oil quantities, use double the amount. There is no danger of
damaging the engine if extra additive is put in.
2. Run the engine and locate the leak using UV lamp
VAS 231005 or equivalent (Figure 1).

Figure 1. Example of finding a leak using the
additive and UV lamp.

Warranty
This TSB is informational only and not applicable to any 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

See ETKA

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

See ETKA/ELSA

G 052940A1

Leak search additive

Shop Supply

Tool Number

Tool Description

VAS231005 (WVA-074) or
equivalent

UV lamp

Page 2 of 3
© 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 (2060750) are subject to change and/or removal.
©2020 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
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
© 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.