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Service bulletin Circular 37M9

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 id10186997
Published by NHTSA2021-03-04
Manufacturer's numberCircular 37M9
Manufacturer's date2021-02-04
NHTSA componentPOWER TRAIN

NHTSA's summary

An irregularity in the transmission case casting may cause incorrect seating of the exhaust bracket connection. This can result in an uneven contact surface, and as a result the bolts for the exhaust system bracket can become loose.

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 RS 72021

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

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