94 Rear lights do not switch from bumper to hatchgate after closing
94 20 24 2050234/4 April 21, 2020. Supersedes Technical Service Bulletin Group 94 number 19-02 dated
February 7, 2019 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

Q5

2018 - 2020

All

Not Applicable

Condition
REVISION HISTORY
Revision

Date

Purpose

4

-

Revised header (Added MY 2020 and 2021)
Revised Production Solution (Solution modified)
Revised Service (Service procedure modified)
Revised Warranty (Additional repair option SRT)

3

02/07/2019

Revised header (Added MY 2019 with VIN break)
Revised Production Solution (Solution specified)
Revised Service (Description of solution)
Revised Warranty (Removed temporary solution)
Revised Required Parts and Tools (Remove ‘if necessary’ statement)

2

07/17/2018

Revised Warranty (Updated Damage Code)

Customer may report:
 Brake light warning on in instrument cluster.
 When the rear lid is closed, the lights in the rear bumper do not switch over to the main lights on the rear lid.
 All of the rear light bulbs are fully functional. None are found to be faulty or incorrect.
Workshop findings:
The following DTC may be stored in the comfort system central control module, J393 (address 0046):
 DTC B146C29 (Rear lid -closed- sensor implausible signal).

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© 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.

Technical Background
When opening the rear lid on the Q5 the rear lighting changes from the rear lid to the bumper and when closing
the rear lid the lighting changes back to the rear lid.
The two micro switches for the reverse light change-over are under the loading sill cover on the rear cross panel
and are secured to the striker for the rear lid lock (Figure 1).
The following problems can occur:
1. The paddle on the micro switch was broken due
to adjustment of the rear hatch or the striker in
production.
2. Dirt can block one/both paddles on the micro
switch, which is fastened to the striker of the rear
lid (Figure 2).

Figure 1. Rear lid closed sensor.

Figure 2. Debris trapped in the rear lid closed sensor.

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.

Production Solution
 Adjustment of rear hatch optimized.
 The rear lid closed sensor assembly with additional enclosure to protect the switches from debris ingress is
now installed. This improves the debris resistance of the switches but cannot eliminate it entirely.

Service
1. Replace the rear lid closed sensor if found broken (Figure 1).
2. If debris is found to be obstructing proper switch activation/deactivation, activate the switch paddles using your
fingers and remove the debris. Using compressed air is effective.
3. Then check the measuring values for the G525 and G526 switches and replace the rear lid closed sensor if the
malfunction persists. Only the improved rear lid closed sensor with the protective enclosure is available.

Warranty
Claim Type:

 110 up to 48 Months/50,000 Miles.
 G10 for CPO Covered Vehicles – Verify Owner.
 If vehicle is outside any warranty, this Technical Service Bulletin is informational
only.

Service Number:

9661

Damage Code:

0015

Labor Operations:

Lock carrier cover remove + reinstall

7039 1900

See SRT

Rear Lid Closed Sensor G525/G526
replacement

9661 1950

See SRT

Rear Lid Closed Sensor G525/G526 - repair

9661 9999

30 TU

GFF

0150 0000

20 TU

Road test prior to service procedure

No allowance

0 TU

Road test after service procedure

No allowance

0 TU

Or

Diagnostic Time:

Claim Comment:

As per TSB #2050234/4

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© 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.

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

Rear Lid Closed Sensor

01

See ETKA

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

See ETKA/ELSA

Additional Information
All parts and service references provided in this TSB (2050234) are subject to change and/or removal.
©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.

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.