01 MIL on, DTC P218100, P017B00, P308100, and/or P01E400 are stored in the ECM
01 20 57 2058767/3 April 10, 2020. Supersedes Technical Service Bulletin Group 01 number 20-52 dated March
26, 2020 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

A6, A7

2018 - 2019

All (Neckarsulm)

V6 TFSI

A6, A7

2020

N000001 - N030626

V6 TFSI

A8

2019 - 2020

All

V6 TFSI

Q7

2020

D000001 - D000009

V6 TFSI

Q8

2019

All (Bratislava)

V6 TFSI

Q8

2020

D000001 - D050965

V6 TFSI

S4

2017 - 2020

All (Ingolstadt)

V6 TFSI

S5, RS5

2018

All

V6 TFSI

S5

2019

A000001 – 086414

V6 TFSI

RS5

2019

A000001 - 907080

V6 TFSI

S5

2020

N000001 - N000785

V6 TFSI

SQ5

2018 - 2020

All

V6 TFSI

Condition
REVISION HISTORY
Revision

Date

Purpose

3

-

Revised Warranty (Updated Labor Operations)
Revised Required Parts and Tools (Added coolant and tool)

2

03/26/2020

Revised header (Added models)
Revised Service (Updated Step 1)
Revised Warranty (Updated Labor Operations)

1

03/11/2020

Initial publication

Customer states:
 MIL on.
Workshop findings:

Page 1 of 4
© 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.

 The fan may run permanently.
At least two DTCs below are stored in the engine control module (ECM), J623 (address word 0001):
 DTC P218100 (fault in cooling system).
 DTC P017B00 (sensor for cylinder head temperature, implausible signal).
 DTC P308100 (engine temperature too low).
 DTC P01E400 (sender 3 for coolant temperature, implausible signal).

Technical Background
Not applicable.

Production Solution
Implementation of the improved thermostat in to production.

Service
1. Remove the thermostat and check whether it closes completely. If the coolant is still warm, put the
thermostat in cold water to restore its original condition. If there is a gap between chamber and seal, the
thermostat is faulty and needs to be replaced.
2. Attach photos to the repair order which clearly shows
that the thermostat does not close neatly.
Note:
After the repair, fill with G12evo coolant in the coolant
circuit.

Figure 1. Gap between chamber and seal.

Page 2 of 4
© 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.

Note:
Parts replacement of the coolant temperature sender does not solve this issue. Claims for replaced parts will be
subject to review.

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:

1958

Damage Code:

0017
1958 1993

Labor Operations:
Thermostat remove + reinstall

Or

See SRT

1958 1995 (RS5
Only)
Remove and install air pipe of the intake air
distributor

2446 1943 (A6,
A7, S4, SQ5, S5,
and RS5 Only)

See SRT

1920 1994 (Q7
Only)
Cooling Fan Housing R&R

Or

See SRT

1920 1943 (Q8
and A8 Only)

Diagnostic Time:

Front Bumper R&R

6329 1900 (Q7
Only)

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

See SRT

Page 3 of 4
© 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.

Claim Comment:

As per TSB #2058767/3

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.

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

06M121115K

Thermostat

01

06M121688

Seal ring

01

G 12E0501GDSP

Coolant

03

Tool Number

Tool Description

T40425

Thrust Piece (Needed for seal replacement
only)

Additional Information
All parts and service references provided in this TSB (2058767) 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 4 of 4
© 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.