A4822172065978_1

Technical Service Bulletin
48 Steering wheel heating does not heat up sufficiently
48 22 17 2065978/1 February 1, 2022.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
All
Heated Steering Wheel
2019 – 2020
All
Heated Steering Wheel
Q5 e quattro 2020 – 2021
All
Heated Steering Wheel
A6 allroad,
S6, S7, S8,
e-tron
Sportback
quattro,
SQ7, SQ8,
and RS Q8
All
Heated Steering Wheel
A3, S3, A4,
A4 allroad,
S4, A5, A5
Sportback,
A5
Cabriolet,
S5, S5
Sportback,
2019 – 2023
S5
Cabriolet,
RS 5, RS 5
Sportback,
A6, A7, etron quattro,
Q3, Q5,
SQ5 Q7,
and Q8
RS3
2020-2023
RS 6 Avant,
RS 7, Q5
Sportback,
and SQ5
Sportback
2021 – 2023
All
Heated Steering Wheel
Q4 e-tron,
Q4
Sportback
e-tron, etron GT,
and RS etron GT
2022 – 2023
All
Heated Steering Wheel
Condition
Customer states:
• The steering wheel does not heat up.
• The steering wheel does not heat up sufficiently.
© 2022 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
• The steering wheel heats up unevenly.
• It takes a long time for the steering wheel to heat up.
Workshop findings:
There are no DTCs related to the topic.
Technical Background
The surface temperature may vary at different locations on the steering wheel due to uneven heat distribution,
which may give the impression that the steering wheel heating is insufficient or is not working at all.
It may take over 30 minutes for the target temperature of approx. 30°C ± 3°C (86° F ± 5F°) to be reached. The
amount of time required is strongly dependent on the interior temperature and the settings on the vehicle’s
heater/air conditioner.
The surface temperature of the leather may be lower in the vicinity of the spokes compared to the rest of the
steering wheel, as some of the heat dissipates into the spokes.
The surface of the top part of the steering wheel (12 o’clock position) may also be heated up by sunlight, resulting
in a clearly noticeable temperature difference. If the driver holds the steering wheel at the 9 and 3 o’clock
positions, the leather will be warmed up by their hands. If the driver then touches the steering wheel at the 12 and
6 o’clock positions, it will be cooler at these locations since they have not been warmed up by the driver’s hands.
The NTC temperature sensor fitted in the foam underneath the cover can also cause the complaint to be
perceived differently.
When the desired surface temperature of 30°C (86° F) has been reached, the measured value for the sensor is
34°C (93° F), as this is the temperature underneath the cover.
Production Solution
Not applicable.
Service
Not Applicable
Warranty
This TSB is informational only and not applicable to any Audi Warranty.
Additional Information
© 2022 Audi of America, Inc.
Page 2 of 3
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
All part and service references provided in this TSB (2065978) 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.
©2022 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.
© 2022 Audi of America, Inc.
Page 3 of 3
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.