Technical Service Bulletin
43 Air suspension system fault - DTC C118D01 Compressor for level control electrical error
43 24 91 2073034/6 June 28, 2024. Supersedes Technical Service Bulletin Group 43 number 24-90 dated May
14, 2024 for reasons listed below.
Model(s)

Year

e-tron, and e-tron
Sportback

2023

VIN Range

Vehicle-Specific Equipment

All

Air Suspension

A6, A6 allroad,
S6, RS 6 Avant,
A7, S7, RS 7,
A8. S8, Q5, Q5 e
quattro, Q5
2023 - 2025
Sportback, SQ5,
SQ5 Sportback,
Q7, SQ7, Q8,
SQ8, and RS Q8
Q8 e-tron, SQ8
e-tron, Q8
Sportback e-tron, 2024 - 2025
and SQ8
Sportback e-tron

Condition
REVISION HISTORY
Revision

Date

Purpose

6

-

Revise Service (Updated Procedure)

5

05/14/2024

Revised Warranty (Modified Labor Operations)
Revised Header (Added Model Year)

4

05/07/2024

Revise Service (Updated Procedure)

Customer states:
The message “Air suspension: system fault” is shown in the instrument cluster.
Workshop findings:
The following DTC is logged in the suspension control unit -J775- (diagnostic address 0074):
• C118D01: Compressor for level control electrical error.

Technical Background
© 2024 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
Not applicable.

Production Solution
Not applicable.

Service
If no irregularities are found when checking the wiring/contacts at the air compressor and compressor electronics
-J1135-, proceed as follows:
• Replace the control unit for compressor electronics -J1135- (not the air compressor).
• Please use part number 4M0.907.778.

© 2024 Audi of America, Inc.
Internal

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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

Figure 1. Compressor electronics control unit -J1135-.

Warranty
Claim Type:

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

© 2024 Audi of America, Inc.
Internal

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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 Number:

4316

Damage Code:

0039

Labor Operations:

Remove and install control unit J1135

4316 19xx

See SRT with
associated
operations

Charge battery

2706 8950

See SRT with
associated
operations

GFF

0150 0060

Time stated on the
diagnostic protocol

Diagnostic Time:

(Max 50 TU)

Claim Comment:

Road test prior to the service procedure No allowance

0 TU

Road test after the service procedure

0 TU

No allowance

As per TSB 2073034/6

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
The part numbers mentioned in this TSB are different than the ones listed in ETKA. Only use parts listed
in this TSB, this includes superseding part numbers!
Part Number

Part Description

Quantity

See ETKA

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

See ETKA/ELSA

4M0.907.778

Control unit for compressor electronics J1135 (if necessary)

01

Additional Information
All parts and service references provided in this TSB (2073034) are subject to change and/or removal.
©2024 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.
© 2024 Audi of America, Inc.
Internal

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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.