Service Action
Code: 34K1
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.
Added Canadian TSB number to reference if car returns with fault.

08/03/2023

Original publication

Country
USA
CAN

Beginning
Model Year
2018
2018

Ending
Model Year
2018
2018

Vehicle

Vehicle Count

GOLF R
GOLF R

310
63

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.

Volkswagen 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 December 31, 2026. 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 parts and labor cost 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.
Fill out and affix Campaign Completion Label (CAMP 010 000) after work is complete.
Labels can be ordered at no cost via the Compliance Label Ordering portal at www.vwhub.com.

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 Volkswagen dealer. 2023 Volkswagen Group of America, Inc. and Volkswagen Canada. All Rights Reserved.
34K1 Page 1 of 48

Parts Information
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

Quantity

Part Number

P.O.C. Part Description

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)

0GC-927-377

GASKET (seal for mechatroic connector)
(if damaged)

1

1K0-253-141-AA

CLAMP (exhaust clamp)

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

G -12E-100-1G CON

COOLANT

USA
ONLY

Up to 1

G -12E-100-2G CON

COOLANT

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)

1

01

Ordering Method

Free Order

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 Volkswagen dealer. 2023 Volkswagen Group of America, Inc. and Volkswagen Canada. All Rights Reserved.
34K1 Page 2 of 48

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)

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 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 Volkswagen dealer. 2023 Volkswagen Group of America, Inc. and Volkswagen Canada. All Rights Reserved.
34K1 Page 3 of 48

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 request via WISE under the Campaigns/Update/Recall Closure option.
 Canada dealers: Upload the repair order [signed by customer] to Volkswagen WIN/Operations/Campaign
Closure.
Service Number

34K1

Damage Code

0099

Parts Vendor Code
Claim Type

WWO
Sold vehicle: 7 10
Unsold vehicle: 7 90

Causal Indicator

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

Vehicle Wash/Loaner

Do not claim wash/loaner under this action
U.S.A.: Loaner/rental coverage cannot be claimed under this action. However,
loaner/rental may be covered under the Alternate Transportation Program. Please refer
to the Volkswagen Warranty Policy and Procedures Manual for loaner claims
information and reimbursement details.
Canada: Loaner/rental coverage cannot be claimed under this action. Please refer to t
Volkswagen Service Loaner Program to determine loaner eligibility.

Criteria I.D.

02
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

0150 00 00

Time stated on
diagnostic protocol
(up to 50 TU)

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
Labor Op

Time Units

Description

3435 19 42

SEE ELSA

Transmission remove+reinstall

3435 42 99

380

Replace auxiliary hydraulic pump

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 Volkswagen dealer. 2023 Volkswagen Group of America, Inc. and Volkswagen Canada. All Rights Reserved.
34K1 Page 4 of 48

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

DUAL CLAMP

2.00

7E0407297

LOCK RING

1.00

D 174003M2

SILCONE SEALANT

0.10

G 055128A1

SEAL GREASE

Up to 40.00

G 12E100S1

COOLANT (concentrate)

7.00

G 055529A2

GEAR OIL

2.00

N 0150816

SHOULDERED HEX. NUT

6.00

N 10332002

SHOULDERED HEX. NUT

2.00

N 10552402

BOLT, HEX. HD. WITH SHOULDER

3.00

N 10552404

BOLT, HEX. HD. WITH SHOULDER

1.00

N 10784701

BOLT

1.00

N 10784801

SCREW

6.00

N 10785401

HEXAGON FLANGE SCREW (COMBI)

3.00

N 90846102

12 POINT SOCKET HEAD SCREW

1.00

N 90965401

PLUG WITH SEAL

6.00

N 90991102
or
N 91108201

BOLT, WITH POLYGON SOCKET HD.
(driveshaft bolts – confirm part number in
ETKA)

4.00

N 91066901

BOLT, HEX. HD. WITH SHOUL (COMBI)

4.00

N 91088901

SOCKET HD. SCREW WITH COLLAR

1.00