A911936 2053916-

Technical Service Bulletin
91 iPhone is entering thermal protection while charging in phone box
91 19 36 2053916/1 February 7, 2019.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
All
2019 - 2021
All
With phone box
Condition
Customer states:
 A non-plus sized iPhone heats up while wirelessly charging on the phone box.
 A non-plus sized iPhone enters thermal protection mode while charging on the phone box and stops charging.
The CarPlay screen may appear frozen during this time but the infotainment system is fully functional
otherwise.
Workshop findings:
 No relevant DTCs are stored in the information electronics control module 1, J794 (address word 005F).
Technical Background
The charging pad is universally sized for multiple phone types.
If a small phone, like a non-plus sized iPhone is placed on the phone box, it can move off center while driving.
This causes the power transmission level to increase in order to retain a constant charge current to the phone
which heats up the phone.
Production Solution
Not applicable.
Page 1 of 2
© 2019 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
Service
1. A set of spacers can be attached to the phone box to prevent the
phone from moving around while driving (Figure 1).
The spacers are available via Audi Accessories, part number:
8W0 051 431.
Figure 1. Phone box spacers.
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
8W0051431
Service part for inductive charger casing
01
Additional Information
All parts and service references provided in this TSB (2053916) are subject to change and/or removal.
©2019 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.
Page 2 of 2
© 2019 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.