Technical Service Bulletin
94 A7 LED headlights: Headlight fault in Driver Information System
94 12 97 2028947/5 November 20, 2012. Supersedes Technical Service Bulletin Group 94 number 12-86 dated
August 15, 2012 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

A7

2012

Not Applicable

Full LED Headlamps

Condition
REVISION HISTORY
Revision

Date

Purpose

5

-

Revised Warranty (corrected SRTs)

4

8/15/2012

Revised header data (corrected VIN breaks)

3

7/24/2012

Revised header data (Added model year 2013)

2

7/11/2012

Revised Technical Background, Service, Warranty, and Required Parts

and Tools
1

3/15/2012

Original publication

Customer complaint:
Headlight warning message sporadically appears in DIS.
 The warning is typically associated with the activation of the static cornering light during low speed turns, or
when the turn signal is activated while at a stop.
 The fault disappears shortly after the cornering light turns off.
Workshop findings:
At least one of the following entries is logged in J519 (09 – central electrics unit control unit):
 DTC 3813 (Lamp for main beam, right - current coding, implausible signal)
 DTC 3814 (Lamp for main beam, left - current coding, implausible signal)
 DTC 3815 (Lamp for dipped beam, right - current coding, implausible signal)
 DTC 3816 (Lamp for dipped beam, left - current coding, implausible signal)

Page 1 of 4
© 2012 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
Only vehicles with full LED headlights (PR No 8EX or 8EY) are affected.
Both headlights remain fully functional during this complaint and still comply with all applicable FMVSS standards.

Technical Background
Software within the LED control module incorrectly calculates the current intensity of the headlight LEDs, leading
to the DTC.

Production Solution
New software for LED control modules.

Service
The repair performed will depend on the DTCs currently logged in the vehicle. Replace the control unit or control
units associated with the applicable DTCs based on the direction below:
 DTC 3813 or DTC 3814 (Lamp for main beam - current coding, implausible signal):
 Replace the high beam LED control module (part number 4G0 907 472A) on the associated side of the
vehicle with part number 4G0 907 472C.
 DTC 3815 or DTC 3816 (Lamp for dipped beam - current coding, implausible signal):
 Replace the low beam LED control module (part number 4G0 907 472) on the associated side of the
vehicle with part number 4G0 907 472B.

Page 2 of 4
© 2012 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
Warranty
Claim Type:

Use applicable claim type. If vehicle is outside any warranty, this Technical Service Bulletin
is informational only.

Service Number:

9418

Damage Code:

0039

Labor Operations:

For replacing

One Headlight assembly remove +

module(s) on

reinstall

one headlight:

One or Both LED control module(s)

9415 1901

40 TU

9418 1950

20 TU

9415 2001

50 TU

9418 2050

30 TU

0150 0000

Time stated on

replace
For replacing

Both Headlight assemblies remove +

module(s) on

reinstall

both headlights:

One or Both LED control module(s)
replace

Diagnostic Time:

GFF

diagnostic
protocol (Max
30 TU)
Road test prior to service procedure

No allowance 0 TU

Road test after service procedure

No allowance 0 TU

Technical diagnosis at dealer’ s discretion
(Refer to Section 2.2.1.2 and Audi Warranty Online for DADP allowance details)
Claim Comment:

As per TSB #2028947/5

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.

Page 3 of 4
© 2012 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
Required Parts and Tools
Part Number

Part Description

Quantity

4G0 907 472C

High beam LED control module

As Needed

4G0 907 472B

Low beam LED control module

As Needed

Additional Information
All parts and service references provided in this TSB are subject to change and/or removal. Always check with
your Parts Department and service manuals for the latest information.

Page 4 of 4
© 2012 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.