WenmarOpen by Wenmar Pro

Service bulletin TSB_2078475_1

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11021469
Published by NHTSA2025-08-05
Manufacturer's numberTSB_2078475_1
Manufacturer's date2025-07-03
NHTSA componentSERVICE BRAKES

NHTSA's summary

This bulletin provides information when ther eis thermal deformation on the vacuum line to the brake servo.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Brakes

Vehicles listed
AUDI A82020
AUDI A82021 to 2025
AUDI A8 L E2020
AUDI A8 L E2021
AUDI S82020, 2021, 2022, 2023, 2024, 2025

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
TSB_2077435_32026-09-04. Service bulletin. This bulletin provides information when there are cracks on the friction ring surface on ceramic brake discs.
TSB_2075120_32026-09-04. Service bulletin. This bulletin provides information about the general approach for brake vibration concerns.
TSB_2072304_42026-09-04. Service bulletin. This bulletin provides information when there is an ABS/ESC speed sensor implausible signal.
TSB_2069904_32026-09-04. Service bulletin. This bulletin provides information for all models regarding brake sounds.
TSB_2069078_42026-09-04. Service bulletin. This bulletin provides information on the zirconium insercts in the brake piston (ceramic brakes only).
TSB_2067132_42026-09-04. Service bulletin. This bulletin provides information when there is corrosion on the friction survace of steel brake discs.
TSB_2034143_112026-01-07. Service bulletin. This Repair Authorization requests that technicians contact the Technical Assistance Center before proceeding with any brake repairs on vehicles with Cceramic brakes.
TSB_2077435_22025-11-08. Service bulletin. This bulletin provides information when there are cracks on the friction ring surface on ceramic brake discs.
TSB_2069904_22025-11-08. Service bulletin. This bulletin provides information for all models regarding brake sounds.
TSB_2075120_22025-11-08. Service bulletin. This bulletin provides information regarding the general approach for all Audi vehicles regarding brake vibrations.