Technical Service Bulletin
92 Washer solvent level warning is on
92 23 36 2038151/15 July 17, 2023. Supersedes Technical Service Bulletin Group 92 number 23-35 dated May
22, 2023 for reasons listed below.
Model(s)

Year

All Audi Vehicles 2012 – 2021

VIN Range

Vehicle-Specific Equipment

All

Not Applicable

Condition
REVISION HISTORY
Revision

Date

Purpose

15

-

Revised header (Remove MY 2022 - 2024)
Revised Service (Remove Q4 e-tron and Audi e-tron GT)
Revised Warranty (Remove Q4 e-tron and Audi e-tron GT, remove GFF
allowance and road test allowance)

14

05/22/2023

Revised Warranty (Updated Labor Operations)

13

02/07/2023

Revised Warranty (Updated Labor Operations)

Customer states:
• The washer solvent level warning is on in the driver information system (DIS), but the washer solvent level is
correct.
Workshop findings:
• There is no functional restriction in the windshield washer system.

Technical Background
The sensitivity of the washer solvent level sensor (G33) can be affected by the type, concentration, and the
presence of additives in the washer solvent currently in the tank. The operation of the level sensor relies on the
composition of the solvent to provide an accurate message on the solvent level. Incorrect concentration and the
presence of additives can contaminate the sensor and reduce its sensitivity.

Production Solution
Not applicable.

Service
If the washer solvent reservoir is full and the low solvent warning is on, proceed as follows:
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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
1. Empty the reservoir and for all vehicles except A3 Sedan
and A3 Cabriolet, remove the level sensor. Clean the
sensor probes using all-purpose cleaner D 009 401 04
(Figure 1) or, as an alternative, isopropyl
alcohol. Reinstall the level sensor.

Figure 1. D 009 401 04 all-purpose cleaner.
2. For Audi A3 Sedan and A3 Cabriolet where the washer
solvent level sensor is not removable the sensor probes
can be cleaned by removing the reservoir, removing the
filler neck from the reservoir, and gaining access to the
sensor probes (Figure 2).

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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
Figure 2. Windshield washer level sensor
probes as viewed through the tank opening.
3. Saturate the tip of a cleaning brush with a rigid stem and
long enough to reach the probes (approximately 10”) with
all-purpose cleaner D 009 401 04 or isopropyl alcohol. A
hummingbird feeder cleaning brush is shown in the
illustration but any suitable cleaning brush with a tip
constructed of the appropriate material will function well
for this purpose (Figure 3).

Figure 3. Applying all-purpose cleaner D 009
401 04 to the tip of a hummingbird feeder
cleaning brush. The cleaning brush can
alternatively be saturated with isopropyl alcohol.

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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
4. Thoroughly clean the sensor probes (Figure 4).

Figure 4. Cleaning the sensor probes.
5. Refill the reservoir with the correct type and concentration
of solvent. Windshield washer fluids found in the Audi Top
Service Supplies and Touch Up Paint eStore with a 35%
pre-mix are suitable for temperatures down to -30 °C (-22°
F) and contain no rain repellents. For freeze protection
below this temperature range Windshield Washer Fluid
Concentrate ZAW 096 311 B can be used and mixed
according to the table below (Figure 5). This solvent can
be adjusted for freeze protection to -32° C (-25° F),
prevents washer jet contamination, particularly on the
“fan” type of washer jet, and is highly effective in removing
residues and insects from the windshield.

Figure 5. ZAW 096 311 B windshield washer
fluid concentrate.
Note:
Dealers in states such as California which have a restriction on windshield washer solvent VOC content can use
Audi Windshield Washer Fluid – 35% pre-mix – (55 gallon) available from the Audi Top Service Supplies &
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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
Touch-Up Paint eStore as an alternative. This solvent contains no water repellents and has freeze protection to 22° F.
6. The concentration and freeze point can be checked using
the T10007A refractometer (Figure 6).

Figure 6. T10007A refractometer.
7. Put a drop of washer fluid with the pipette on the glass of
the refractometer. When viewing the refractometer, a lightdark border can be clearly recognized. Using the scale to
the right (Figure 7), adjust the concentration of the solvent
to accommodate the current weather conditions.

Figure 7. Scale in the view of the T10007A
refractometer.
8. Concentration guidelines:
Freeze protection

Windshield Washer Fluid Concentrate
ZAW 096 311 B

Water

-16 °C (3° F)

1 part

3 parts

-30 °C (-22° F)

1 part

2 parts

-32 °C (-25° F)

1 part

1.5 parts

Note:
It is not necessary to replace the windshield washer solvent level sensor when the cause of failure is
contaminated sensor probes or incorrect washer solvent solution. Warranty claims for replacement of washer
solvent level sensors that are found to not be faulty will not be reimbursed.
© 2023 Audi of America, Inc.

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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
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:

9258

Damage Code:

0040
Fluid level sensor
remove and reinstall

9258 19XX

See SRT with
associated operations

Windshield washer
reservoir remove and
reinstall

9260 19XX

See SRT with
associated operations

Clean fluid level sensor
and adjust solvent
concentration

9258 2999

10 TU

GFF

No allowance

0 TU

Road test prior to
service procedure

No allowance

0 TU

Road test after service
procedure (Q4 e-tron
only)

No allowance

0 TU

-OR-

Diagnostic Time:

Claim Comment:
As per TSB 2038151/15
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

ZAW 096 311 B
(item number
128429)

Windshield Washer Fluid Concentrate

Shop Supply

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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
(Available from the
Audi Top Service
Supplies & TouchUp Paint eStore)

Item # 121133 /
Customer Item #
WWFDRUM

Washer solvent alternative for states with VOC restrictions

Shop Supply

All-purpose cleaner

0.1

(Available from the
Audi Top Service
Supplies & TouchUp Paint eStore)

D00940104 or
isopropyl alcohol

© 2023 Audi of America, Inc.

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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

See ETKA

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

Tool Number

See
ETKA/ELSA

Tool Description

T10007A

Refractometer

Additional Information
All parts and service references provided in this TSB (2038151) are subject to change and/or removal.
©2023 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
© 2023 Audi of America, Inc.

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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
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.

© 2023 Audi of America, Inc.

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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.