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Technical Service Bulletin 2077663/1
Technical Service Bulletin
Transaction No.: 2077663/1
45 Gear cannot be selected in cold weather
Release date: Apr 21, 2025

Condition

Customer statement:

Sometimes, gears cannot be selected during cold weather. This may occur together with a fault message for the parking brake.

 

Workshop findings:

The complaint can be reproduced, however a change occurs after an extended period in warmer surroundings.

The following combination of event memory entries occur together and simultaneously.

 

Address 0003:

U303500 with symptom 678

U029400 with symptom 48

 

Address 812C:

U303500 with symptom 289

U012900 with symptom 38248

U012900 with symptom 38255

 

Observe repair level

Revision history

Transaction no./revision number

Change

2077663/1

First edition

Note:The content of this table is not changed if the subsequent revision only involves a change to the header data of the article.

Technical Background

Control unit information is not communicated at the right time.

Service

If the complaint applies completely, please replace the brake servo control unit as an individual part and send it in for analysis.

Warranty

The TPI number must always be stated for ease of processing.For markets with DISS-SAGA/2 link, the TPI is taken from the DISS system. For markets without DISS or without DISS-SAGA/2 link, the “HST number” field must be completed in the SAGA/2 system.

If you are billing AUDI AG/the importer according to the warranty guidelines, please note the following accounting instructions:

Service number / damage code: 4545 / 0040

 

Billing in SAGA:

 

Model

Main task (MT)/associated task (AT)

Repair operation

Description

Time units (TU)

*

45 45 55 xx

Replaced ABS and electronic differential lock control unit

According to ELSA

*

01 50 00 60

GFF / Guided Functions

Labour according to diagnostic log

Please note the information on predecessors and items that are included and excluded in the repair operations, as well as any associated tasks.

Claim Comment: As Per Bulletin 2077663/1

 

 

Billing in APOS NF:

 

Model

Repair operation

Description

Time units (TU)

*

405450 55

Replace ABS control unit

According to APOS NF

*

001500 V1

Guided Functions/GFF

Labour according to diagnostic log

 

Required Parts and Tools

Please only replace the control unit as an individual part and not the entire brake servo.

Additional Information

All parts and service references provided in this TPI are subject to change and/or removal.

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