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Technical Service Bulletin

45 Uneven braking when brake pedal is applied lightly

Condition

Transaction No.: 2076761/5
Release date: Dec 19, 2025

Model(s)

Year(s)

VIN Range

Vehicle Specific Equipment

A6 Sportback e-tron, S6

Sportback e-tron, Q6 e-

tron, Q6 Sportback e-tron, 2025

$Q6 e-tron, and SQ6
Sportback e-tron

All

Not applicable

REVISION HISTORY

Revision | Date

Purpose

5 -

Revised header (Corrected models)
Revised Condition (Added model table)

Revised Service (Updated verbiage)

Revised Warranty (Updated Labor Operations)

4 10/30/2025

Revised Service (Updated Information)

3 10/21/2025

Revised header (Added Model Year)

Revised Service (Updated Information)

Revised Warranty (Updated Information)

Customer states:

The customer complains of uneven braking when the brake pedal is applied lightly. The situation is briefly perceived

as unexpectedly strong braking (“brake jolt’).

The complaint occurs under the following conditions:

Vehicle with low mileage and therefore braking-in function for the brake discs and brake pads are still active.

Abnormality during first braking operations after vehicle was not used for an extended period and therefore

brake control system’s cleaning function is active.

Driving at regeneration level 1 or 2.

Speed above 25 mph.

Behavior is particularly noticeable when the high-voltage battery has a charge level below 80%.

Workshop findings:

The complaint can be reproduced under the specified conditions.

Technical Background

Design of the recuperation control system.

Production Solution
Not applicable.

Service

Please perform the software update described in TSB 2079690, 00 Combined software update 03.10.00/C
(28.13.01) KD2.

The complaint only occurs during a short period. The vehicle displays indicate when the braking-in function and
cleaning function are active. To prevent the complaint from occurring, the vehicle’s recuperation function can be
deactivated during the first braking operations after the vehicle has not been used for an extended period by
selecting the appropriate drive mode (without recuperation).

The complaint will no longer occur once the brake pads and brake discs have bedded in after a certain mileage has
been covered.

Warranty
Claim Type: * If the vehicle is outside of any warranty, this Technical Service Bulletin is
informational only.
Service Number: 4545
Damage Code: KDO2
Labor Operations: Software update, including connecting battery 01510010 |See SRT with
charger associated operations
Fixed rate for software update, including all 01510040 |130TU
required preliminary and follow-up work
(including bus sleep cycle, calibration drives, and
additional work)
In the case of additional attempts after flash abort |0150 9999 |50 TU
occurred, an additional lump sum of 50 time units p hd ted
can be claimed per flash cancellation er each documente
attempt
Claim Comment: As per TSB 2076761/5

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.

When performing the combined software update, time stamps are not required for billing under warranty. You are
therefore permitted to work on other vehicles at the same time. The combined software update can also be
performed by non-productive personnel.

Additional Information

All part and service references provided in this TSB (2076761) are subject to change and/or removal. Always check
with your Parts Department and/or ETKA for the latest information and parts bulletins. Please check the Repair
Manual for fasteners, bolts, nuts, and screws that require replacement during the repair.

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