Service Action
Code: 34L4
Subject

Transmission Control Module (TCM) Software

Document History

Affected Vehicles

Date

Summary

11/03/2023

Updated repair steps after software update is completed.
Added example photos of transmission damage.

08/03/2023

Original publication

Country
USA
USA
USA
CAN
CAN

Beginning
Model Year
2017
2017
2018
2017
2018

Ending
Model Year
2018
2018
2018
2018
2018

Vehicle

Vehicle Count

A3 CABRIOLET
A3 SEDAN
S3 SEDAN
A3 SEDAN
S3 SEDAN

713
7,898
589
515
115

Check Campaigns/Actions screen in Elsa on the day of repair to verify that a VIN qualifies for repair under this
action. Elsa is the only valid campaign inquiry & verification source.

About this Service
Action
Code Visibility



Campaign status must show “open.”



If Elsa shows other open action(s), inform your customer so that the work can also be completed at
the same time the vehicle is in the workshop for this campaign.

Audi is providing updated transmission control module (TCM) software to enhance an in-vehicle
alert should a problem arise within the auxiliary hydraulic pump. Additionally, if a specific fault
is found after the software is updated, a repair will be made to the transmission.
On or about August 03, 2023, the campaign code will be applied to affected vehicles.

Owner Notification

Owner notification will take place in August 2023. Owner letter examples are included in this
bulletin for your reference.

Campaign Expiration
Date

This campaign expires on March 01, 2027. Repairs must be performed on or before this date
to be eligible for payment. Keep this expiration date in mind when scheduling customers for this
action. If a customer wishes to have this service performed after the expiration date, your
dealerships normal costs associated with this repair will apply.

Additional Information

Please alert everyone in your dealership about this action, including Sales, Service, Parts
and Accounting personnel. Contact Warranty if you have any questions.
Dealers must ensure that every affected inventory vehicle has this campaign completed before
delivery to consumers.

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Audi dealer. 2023 Audi of America, Inc. and Audi Canada. All Rights Reserved.
34L4 Page 1 of 44

Parts Information (if auxiliary hydraulic pump requires replacement)
Parts Control Type:
Free Order

Parts will be managed by Free Order

Initial Allocation:
NO

There will be no parts allocation. Please reference the Repair Projection Tool (below)
to view your potential VIN population.

Repair Projection Tool:
(right click to open)
Criteria

01

Quantity

Part Number

P.O.C. Part Description

Ordering Method

2

01M-323-255

SEAL RING (o-ring for driveshaft)

1

06B-105-313-D

BEARING (needle bearing – confirm part
number in ETKA)

1

0BH-325-147

CLIP (for mechatronic connector)

1

0GC-398-008-D

REPSET (repair kit)

1

0GC-927-377

GASKET (seal for mechatroic connector)
(if damaged)

1

1K0-253-141-AA
Or
1K0-253-141-S

CLAMP (exhaust clamp - S3)
Or
CLAMP (exhaust clamp - A3)

2

7E0-407-297

RING (driveshaft circlip)

1

D -174-003-M2

SEALANT

0.1

G -055-128-A1

SEAL GREASE (for axle seal installation)

Up to 1
Or
Up to 2

G -12E-100-1G CON
Or
G -12E-050-1G RTU

COOLANT (concentrate)
Or
COOLANT (pre-mix)

USA
ONLY

Up to 1
Or
Up to 2

G -12E-100-2G CON
Or
G -12E-050-2G RTU

COOLANT (concentrate)
Or
COOLANT (pre-mix)

CANADA
ONLY

7

G -055-529-A2

GEAR OIL

2

N -015-081-6

NUT (coupling rod)

6

N -103-320-02

NUT (transverse link)

2

N -105-524-02

BOLT (steering rack)

3

N -105-524-04

BOLT (gearbox mounting)

1

N -107-847-01

BOLT (pendulum support)

1

N -107-848-01

SCREW (pendulum support)

6

N -107-854-01

SCREW (assembly mounting)

Free Order

Continued on next page

The information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures
are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether
this information applies, contact an authorized Audi dealer. 2023 Audi Group of America, Inc. and Audi Canada. All Rights Reserved.
34L4 Page 2 of 44

Criteria

01

Quantity

Part Number

P.O.C. Part Description

3

N -908-461-02

SCREW (front propshaft)

1

N -909-654-01

SCREW (drain plug)

6

N -909-911-02
or
N -911-082-01

BOLT (driveshaft – confirm part number in
ETKA)

4

N -910-669-01

BOLT (middle propshaft)

4

N -910-889-01

SCREW (bevel box – AWD only)

1

N -912-010-01

BOLT (pendulum support)

4

N -912-312-01

SCREW (assembly mounting)

5

WHT-000-729-A

BOLT (noise insulation)

3

WHT-005-179

SCREW (rear propshaft)

Ordering Method

Free Order

NOTE
Campaign parts should always be ordered as per the parts information in this circular. The ordering system will
supersede the part, if applicable.

The information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures
are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether
this information applies, contact an authorized Audi dealer. 2023 Audi Group of America, Inc. and Audi Canada. All Rights Reserved.
34L4 Page 3 of 44

Claim Entry Instructions
The labor times listed here may differ from the labor operations and labor times listed in ELSA.
After campaign has been completed, enter claim as soon as possible to help prevent work from being duplicated
elsewhere. Attach the Elsa screen print showing action open on the day of repair to the repair order.
If customer refused campaign work:
 U.S. dealers: Submit the request through Audi Warranty Online under the Campaigns/Update option.
 Canada dealers: Upload the repair order [signed by customer] to Audi WIN/Operations/Campaign Closure.
Service Number

34L4

Damage Code

0099

Parts Vendor Code
Claim Type

002
Sold vehicle: 7 10
Unsold vehicle: 7 90

Causal Indicator

Mark labor as causal if fault does not set after software update
Mark REPSET* as causal if fault sets after software update

Vehicle Wash/Loaner
Criteria I.D.

Do not claim wash/loaner under this action
01
Update TCM software. Fault not stored after software update and road test.

LABOR

AND (if necessary)

Labor Op

Time Units

Description

2706 89 50

SEE ELSA

Connect battery charger

0151 00 00

Time stated on
diagnostic protocol

Update TCM software

Add only if fault P0C29 stored after software update and road test. Remove and install
transmission. Replace auxiliary hydraulic pump and perform basic settings.

LABOR (AWD vehicles)
Labor Op

Time Units

Description

3435 19 16

SEE ELSA

Transmission remove+reinstall
(AWD only)

3435 42 99

380

Replace auxiliary hydraulic pump
(AWD only)

LABOR (FWD vehicles)
Labor Op

Time Units

Description

3435 19 20

SEE ELSA

Transmission remove+reinstall
(FWD only)

3435 42 99

350

Replace auxiliary hydraulic pump
(FWD only)

Continued on next page

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Audi dealer. 2023 Audi of America, Inc. and Audi Canada. All Rights Reserved.
34L4 Page 4 of 44

PARTS
Quantity

Part Number

Description

1.00

0GC398008D

REPSET*

2.00

01M323255

ROUND SEAL

1.00

06B105313D

NEEDLE BEARING

1.00

0BH325147

RETAINING CLIP

1.00

0GC927377

GASKET

1.00

1K0253141AA
or
1K0253141S

DUAL CLAMP (S3)
or
DUAL CLAMP (A3)

2.00

7E0407297

LOCK RING

1.00

D 174003M2

SILCONE SEALANT

0.10

G 055128A1

SEAL GREASE

Up to 40.00
or
Up to 2.00

G 12E100S1
or
G 12E050S0

COOLANT (concentrate)
or
COOLANT (pre-mix)

7.00

G 055529A2