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Service bulletin TSB_2074766_3

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 id11031002
Published by NHTSA2026-04-07
Manufacturer's numberTSB_2074766_3
Manufacturer's date2026-03-20
NHTSA componentPOWER TRAIN

NHTSA's summary

This bulletin provides information when there are humming noises when cornering; DL-382.

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

Transmission and driveline

Vehicles listed
AUDI A42017, 2018, 2019, 2020
AUDI A4 ALLROAD2017, 2018, 2019, 2020
AUDI A62016, 2017, 2018

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_2059057_152026-09-04. Service bulletin. This bulletin provides informatin when there is binding or vibrations in tight turns with quattro Ultra.
TSB_2082086_12026-07-07. Service bulletin. This bulletin provides informaiton when there is a leak on the oil hole between the planetary and the transfer box.
TSB_2074808_42026-06-04. Service bulletin. The high-voltage batteries in electric vehicles are subject to various ageing effects which could lead to the energy content (energy density) being reduced. This reduction in the energy content, which is due to factors. Revised header. Added Model years
TSB_2074806_52026-06-04. Service bulletin. This bulletin provides information when there are noises after selecting a ear while idling and the vehicle is stationary, or while driving.
TSB_2059057_142026-06-04. Service bulletin. This bulletin provides informatin when there is binding or vibrations in tight turns with quattro Ultra.
TSB_2074823_22026-04-07. Service bulletin. This bulletin provides information when the hydraulic pump cannot be adapted - P17EF00 in gearbox control unit.
TSB_2059057_132026-02-06. Service bulletin. This bulletin provides informatin when there is binding or vibrations in tight turns with quattro Ultra.
TSB_2074808_32026-01-07. Service bulletin. This bulletin provides additoinal information to assist in determining the energy content of lithium-ion high-voltage batteries.
TSB_2061461_142025-10-03. Service bulletin. This bulletin provides information when the starter/generator drive belt is noisy or came off.
TSB_2058875_22025-10-03. Service bulletin. This bulletin provides informaiton when there is an oil leak at the transmission connector.