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Service bulletin A301923 2053597

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 id10155658
Published by NHTSA2019-04-01
Manufacturer's numberA301923 2053597
Manufacturer's date2019-01-18
NHTSA componentPOWER TRAIN

NHTSA's summary

This bulletin contains repair instructions for when there is a leak from the lower bellhousing.

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 A4 ALLROAD2018, 2019
AUDI A52018, 2019
AUDI A62019
AUDI A72019
AUDI ALLROAD2018 to 2019
AUDI Q52018

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
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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.
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TSB_2074823_22026-04-07. Service bulletin. This bulletin provides information when the hydraulic pump cannot be adapted - P17EF00 in gearbox control unit.
TSB_2074766_32026-04-07. Service bulletin. This bulletin provides information when there are humming noises when cornering; DL-382.
TSB_2070349_62026-04-07. Service bulletin. This bulleitn provides informiaotn when there is a loss of coolant; mechanical coolant pump 2.9L, 3.0L V6 TFSI.
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.