Technical Service Bulletin
01 "Switch off the engine and check coolant" message in the instrument cluster, DTC P000000 is stored
in the ECM
01 23 46 2058890/4 February 20, 2023. Supersedes Technical Service Bulletin Group 01 number 20-91 dated
October 7, 2020, for reasons listed below.
Model(s)

Year

S4, S5, S5
Cabriolet, S5
Sportback, and
SQ5

2018

RS5, and RS 5
Sportback

2019

VIN Range

Vehicle-Specific Equipment

All

Not Applicable

Condition
REVISION HISTORY
Revision

Date

Purpose

4

-

Revised Service (Updated SVM table)

3

10/07/2020

Revised Service (Updated SVM table)

2

07/24/2020

Revised Service (Updated SVM table and SSP)

Customer states:
• "Switch off the engine and check coolant" message is displayed in the instrument cluster.
Workshop findings:
The following DTC is stored in the engine control module (ECM), J623 (address word 0001):
• DTC P000000 with symptom code 33688.
• Furthermore, no test plan is suggested in the Guided Fault Finding.

Technical Background
DTC P000000 with symptom 33688 indicates a possible malfunction of the mechanical coolant pump.
Due to a deviation in the tester, no test plan is currently shown for this in ODIS.
The mechanical coolant pump of the EA839 V6TFSI can be switched via a vacuum. More information on the
switchable coolant pump can also be found in the Self-Study Program (SSP) 920173 - The Audi 3.0l V6 TFSI
EA839 Engine.

Page 1 of 5
© 2023 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.

Technical Service Bulletin
Production Solution
Not applicable.

Service
Please carry out the following steps for further diagnostics:
1. Check the cooling system for the correct coolant level in the coolant expansion tank:
a. If the coolant level is correct, continue with Step 2.
b. If the coolant level is not correct, check the cooling system for leaks. If a leak is found, replace the
responsible component according to ELSA. If no leak can be found, but the coolant level is still not correct,
top off the cooling system according to ELSA. Continue with Step 2.
2. Using the following table, check whether one of the software versions (or a newer or higher version) is already
installed on the engine control unit of the vehicle:
a. If an older software version (i.e. an older or lower version) is installed on the vehicle, then use the
respective SVM code; if fault reoccurs after a scan continue with step 3.
b. If one of the software versions (or a newer or higher version) listed in the table is already installed,continue
directly with Step 3. In this case, a software update does not fix the customer concern.
Model

Software part number Version

SQ5

80A907559C

0008

S4/S5

8W0907559H

0009

RS5

8W0907551A

0004

SVM code

01A234

Page 2 of 5
© 2023 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.

Technical Service Bulletin
3. Check the operation of the
vacuum control of the mechanical
coolant pump:
a. Check for vacuum (using
VAS6213) at the output port of
solenoid N649 which commands the
water pump sleeve (Figures 1 and
2). The engine needs to be cold to
generate a command signal to the
N649 solenoid to switch to a
vacuum. With the engine cold,
start the engine briefly and monitor
that vacuum is created.
b. If there is no vacuum measured
at the output port of N649, the
cause of the fault could be related to
the solenoid valve N649 or the
vacuum hoses (check for leaks). In
this case, repair and check the
Figure 1. Checking the vacuum at the output port of N649.
operation of the vacuum system.

Page 3 of 5
© 2023 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.

Technical Service Bulletin
4. If there are no malfunctions found in
the vacuum system, check the
operation of the water pump sleeve
by applying a vacuum to the hose
going to the water pump (hose
connected to the output port of
N649). When applying a vacuum to
the pump, pay attention to the
clicking sound of the water pump
sleeve. If no clicking is heard or felt,
replace the mechanical coolant
pump.

Figure 2. The output port of N649 (close-up picture).
5. If a leak is found in the cooling system, attach a photo of the concern to the repair order.

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/
Damage Code:

• If the software update is effective: Service number/damage code: 2470/0039.
• If the solenoid valve N649 is replaced: Service number/damage code: 2169/ 0010.
• If the vacuum hoses are replaced/repaired: Service number/damage code:
2483/0010.
• If the mechanical coolant pump is replaced: Service number/damage code: 1950/
0010.

Page 4 of 5
© 2023 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.

Technical Service Bulletin
Labor Operations:

Diagnostic Time:

Check cooling system and, if necessary, top
up (Only if coolant level too low)

1901 01XX

See SRT with
associated
operations

Solenoid valve N649

1985 1944

See SRT with
associated
operations

Replace the coolant pump

1950 1993

See SRT with
associated
operations

Software update

0151 0000

Time stated on
the diagnostic
protocol (Max 50
TU)

GFF

0150 0000

Time stated on
the diagnostic
protocol (Max 50
TU)

Road test prior to the service procedure

No allowance

0 TU

Road test after the service procedure

No allowance

0 TU

As per TSB 2058890/4
Claim Comment:
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
More information on this system can be found in the following resources:
• SSP: 920173 the Audi 3.0l V6 TFSI EA839 Engine.
All part and service references provided in this TSB (2058890) are subject to change and/or removal. 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.
©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
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 5 of 5
© 2023 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.