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Service bulletin A461884 2050535_

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 id10133302
Published by NHTSA2018-04-16
Manufacturer's numberA461884 2050535_
Manufacturer's date2018-02-22
NHTSA componentSERVICE BRAKES, AIR:DISC:CALIPER

NHTSA's summary

This informational only bulletin indicates that rear calipers missing the "S" badge are to not to be retrofitted to the old style.

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, Brake caliper

Vehicles listed
AUDI S42017
AUDI S42018
AUDI S52017, 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
A461891 2050535-2018-09-17. Service bulletin. This informational only bulletin indicates that rear calipers missing the "S" badge are to not to be retrofitted to the old style.