A3524482050723_5

Technical Service Bulletin
35 Gearbox Malfunction Warning, DTC P0C2900 in the TCM
35 24 48 2050723/5 March 12, 2024. Supersedes Technical Service Bulletin Group 35 number 23-46 dated
October 9, 2023 for reasons listed below.
Model(s)
Year
A3, and A3
Cabriolet
2017 - 2018
S3
2018
VIN Range
Vehicle-Specific Equipment
All
Not Applicable
Condition
REVISION HISTORY
Revision Date
Purpose
5
Revised header (removed models)
-
Revised Condition (updated Workshop findings)
4
10/10/2023 Revised Service (Note added)
3
06/27/2018 Revised Service (Added transmission identification instructions and photo)
Customer states:
• The “Gearbox Malfunction” message has appeared in the Drivers Information Screen (DIS).
Workshop findings:
the following DTC may be logged in the transmission control module (TCM), -J217- (address word 0002):
• DTC P0C2900 (Auxiliary Transmission Fluid Pump Driver Circuit Performance)
Technical Background
Component related issue of auxiliary hydraulic pump (Figure 1).
Legend for picture below:
Item 1: auxiliary hydraulic pump 1 for gearbox oil (V475)
Item 2: electrical connection for auxiliary hydraulic pump 1 for gearbox oil (V475)
Item 3: electric motor for auxiliary hydraulic pump 1 for gearbox oil (V475)
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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
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Technical Service Bulletin
Item 4: main ATF pump
Figure 1. 0GC Gearbox Components.
Production Solution
Improved auxiliary hydraulic pump in production.
Service
Obtain the
transmission
identification
information from the
bell housing (Figure
2).
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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 2. Transmission identification example.
Explanation of data on gearbox:
Gearbox code: STA (green box)
Gearbox Production Date: 300916 = 03.09.2016 (blue box).
Date format: Day/Month/Year
• If the gearbox production date is after 26.09.2017, this TSB does not apply. Proceed according to Guided
Fault Finding. Please note that in this case, the costs for the repair cannot be billed under this TSB.
• If the gearbox production date is on or before 26.09.2017, continue as described below.
Scenario 1: Only required for vehicles on which the 34L4 Service Action has not been performed.
• If the 34L4 Service Action is open for the vehicle, perform it completely and this TSB does not apply.
Scenario 2: Only required for vehicles on which the 34L4 Service Action has already been performed and no
parts were replaced as a part of the campaign.
The 34L4 Service Action has been performed on the vehicle, and the auxiliary hydraulic pump was
not replaced, and only the DTC “P0C2900 – Auxiliary Transmission Fluid Pump Driver Circuit
Performance” is logged in the transmission control module (TCM), J217 (address word 0002).
Replace the auxiliary hydraulic pump according
to the instructions attached to this TSB (Figure
3 or Figure 4), and the parts information listed
below. The event memory of the gearbox
Figure 3. Attachments tab in ElsaPro.
electronics (diagnostic address 002) must then
be erased according to the attached
instructions.
Figure 4. Attachments slide in Elsa2Go.
For an example of the repair procedure, see the video located at:
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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
https://audi-external.kzoplatform.com/player/medium/2535675175601443997
This video is also attached to this TSB
under the attachments tab in the
workshop manual and can be accessed
with the QR code shown here (Figure
4).
Figure 4: QR code for viewing the supporting video with a
QR code reader on phones and tablets. Alternatively, the
video can be accessed through computer internet browsers
at the link provided in this bulletin.
Scenario 3: Only applies if the 34L4 Service Action has been performed and the auxiliary hydraulic pump was
replaced as a part of the campaign.
• If the 34L4 Service Action has been performed on the vehicle and the auxiliary hydraulic pump was
replaced as a part of the campaign, this TSB does not apply, and you should proceed according to Guided
Fault Finding.
If secondary damage is found on the dismantled gearbox, or the adjacent components, follow the
instructions in the Workshop Manual which apply at the time.
Warranty
Claim Type:
• 110 up to 48 Months/50,000 Miles.
• G10 for CPO Covered Vehicles – Verify Owner.
• If the vehicle is outside any warranty, this Technical Service Bulletin is
informational only.
Service Number:
3479
Damage Code:
0010
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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
Labor Operations:
Remove and install gearbox
3435 19 xx
See SRT with
associated
operations.
Replace hydraulic pump
3435 4299
350 TU
3435 4299
380 TU
0150 0000
Time stated on
(Front Wheel Drive Only)
Replace hydraulic pump
(All Wheel Drive Only)
Diagnostic Time:
GFF
diagnostic
protocol
(Max 50 TU)
Claim Comment:
Road test prior to service procedure
No allowance
0 TU
Road test after service procedure
No allowance
0 TU
As per TSB 2050723/4
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
See ETKA/ELSA
Manual
D 174 003 M2
Sealant
0.5
G 055 529 A2
Dual clutch gearbox oil
7
WHT 000 729 A
Bolt (For noise insulation)
5
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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
N 103 320 02
Nut (For transverse link)
6
N 015 081 6
Nut (For coupling rod)
2
N 912 010 01
Bolt (For pendulum support)
1
N 107 848 01
Bolt (For pendulum support)
1
N 107 847 01
Bolt (For pendulum support)
1
N 105 524 02
Bolt (For steering rack)
2
N 908 461 02
Bolt (For front propeller shaft) only for vehicles with all-
3
wheel drive
N 910 669 01
Bolt (For center propeller shaft) only for vehicles with all-
4
wheel drive
WHT 005 179
Bolt (For rear propeller shaft) only for vehicles with all-
3
wheel drive
N 911 082 01
Bolt For drive shaft (For gearbox mounting)
6
Or
or
N 909 910 02
12
N 105 524 04
Bolt (For assembly mounting)
3
N 107 854 01
Bolt (For assembly mounting)
6
N 910 889 01
Bolt (For bevel box) only for vehicles with all-wheel drive
4
0BH 325 147
Retaining clip (For mechatronics unit cover)
1
0GC 927 377
Gasket (mechatronics unit cover)
1
0GC 398 008 D
Repair kit (For auxiliary hydraulic pump)
1
06B 105 313 C
Needle bearing (order to VIN)
1
or
06B 105 313 D
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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
Additional Information
All parts and service references provided in this TSB (2050723) 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
Page 7 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.