Technical Service Bulletin
43 Self-leveling compressor inoperative
43 13 14 2018765/8 April 11, 2013. Supersedes Technical Service Bulletin Group 43 number 12-11 dated October
29, 2012 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

A6 (C6)

2006 - 2008

All

Air Suspension

A8 (D3)

2004 - 2010

All

Air Suspension

Q7

2007 - 2012

All

Air Suspension

S6 (C7)

2013

All

Air Suspension

S7 (C7)

2013

All

Air Suspension

A8 (D4)

2011 - 2013

All

Air Suspension

Condition
REVISION HISTORY
Revision

Date

Purpose

8

-

Revised Warranty (Clarified models in labor operations)
Revised Service (Removed extra steps)

7

10/25/2012

Revised header data (Added models and model years)
Revised Warranty

6

2/2/2012

Revised Warranty

5

9/10/2010

Revised header data (Model years)

4

10/27/2009

Revised header data (Added Model year 2010)

3

12/11/2008

Revised Service

2

11/3/2008

Revised Title to include Repair Group

• The self-leveling system can no longer be adjusted with the MMI.
• The compressor for the self-leveling system continues to run after the engine has been switched off and the
vehicle has been locked.

© 2013 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
• One of the following DTCs may be stored in the level control system module, J197 (address word 34):
• DTC 0453 (restricted function through excess temperature).
• DTC 1583 (leak in the system recognized).
• DTC 1770 (sender for compressor temperature of self-leveling control G290).
• DTC 1772 (signal cable of pressure sender for self-leveling control G291).
• DTC 2645 (valves for self-leveling control).
• DTC 2646 (plausibility of self-leveling control).

Technical Background
Because of poor performance or failure of the air suspension compressor, the vehicle ride height cannot be
adjusted. As a safeguard, the control module will lower the vehicle to the lowest position and illuminate the
warning light. Drivability is not affected.

Production Solution
Not applicable.

© 2013 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
Service
Tip: See the current flow diagram for the location of the J403 relay for the air supply unit and the location of
the air compressor (air supply unit).
1. Check the function of the air compressor by supplying it with direct current. Determine if the air compressor is
operating correctly and sounds normal, if it is unusually noisy, or if it is not working at all.
2. Check relay J403 by opening the relay and comparing it to the images below:
If the relay exhibits any of the conditions A – C below, replace both the air compressor and the relay,
even if the air compressor sounds normal.
A) Strong erosion of both contacts (Figure 1, Figure 2).

Figure 1. Strong erosion of both contacts.

Figure 2. Strong erosion of both contacts.

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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
B) Strong erosion of the spring contact (Figure 3).

Figure 3. Strong erosion of the spring
contact.
C) Overheated strand (Figure 4).

Figure 4. Overheated strand.
If the relay contacts are similar to condition D below, and the air compressor sounds normal, replace
only the relay.
D) Contacts with minor marks (Figure 5).

Figure 5. Contacts with minor marks.

© 2013 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
Warranty
Claim Type:

Use applicable claim type. Vehicle may be outside any
warranty, in which case this Technical Service Bulletin is
informational only.

Service Number:

4315

Damage Code:

0040

Labor Operations:

A6 (C6) (2005 – 2008):
Compressor
remove and install

4315 1950

70 TU

Front bumper
cover remove and
install

6329 1900

90 TU

Central electronics 9793 1900
cover remove and
install

70 TU

Relay for
suspension
compressor
inspect

10 TU

4315 1999

A8 V8 (D3) (2004 – 2010):

© 2013 Audi of America, Inc.

Compressor
remove and install

4315 1900

90 TU

Shelf under dash
panel remove and
install

6818 1900

50 TU

Relay for
suspension
compressor
inspect

4315 1999

10 TU

Page 5 of 7

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
S8 and W12 (D3) (2005 – 2010):
Compressor
remove and install

4315 1950

70 TU

Lock carrier
loosened and
fastened

5038 0900

160 TU

Shelf under dash
panel remove and
install

6818 1900

50 TU

Relay for
suspension
compressor
inspect

4315 1999

10 TU

Vehicle front & rear 4495 0300
measure (cars with
ACC only)

90 TU

Radar sensor
check & adjust
(cars with ACC
only)

9163 1550

30 TU

Radar sensor
adjust (cars with
ACC only)

9163 0550

30 TU

Audi Q7 (2007 – 2012):

© 2013 Audi of America, Inc.

Compressor
remove and install

4315 1900

70 TU

Shelf under dash
panel remove and
install

6818 1900

30 TU

Relay for
suspension
compressor
inspect

4315 1999

10 TU

Page 6 of 7

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
A8 (D4) (2011 - 2013)
Compressor
remove and install

4315 1900

50 TU

Shelf under dash
panel remove and
install

6818 1900

30 TU

Relay for
suspension
compressor
inspect

4315 1999

10 TU

Compressor
remove and install

4315 1900

50 TU

Relay for
suspension
compressor
inspect

4315 1999

20 TU

GFF

0150 0000

Time stated on
diagnostic protocol

Road test prior to
service procedure

No allowance

0 TU

Road test after
service procedure

No allowance

0 TU

S6 / S7 (C7) (2013):

Diagnostic Time:

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 #2018765/8

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.

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.

© 2013 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.