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Service bulletin Circular - 19M4

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 id10156529
Published by NHTSA2019-04-02
Manufacturer's numberCircular - 19M4
Manufacturer's date2019-03-29
NHTSA componentEQUIPMENT; ENGINE AND ENGINE COOLING

NHTSA's summary

Install an additional tensioning strap to the coolant expansion tank.

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

Engine, Equipment and accessories

Vehicles listed
AUDI R82008, 2009, 2010
AUDI R82013
AUDI R8 GT SPYDER2012
AUDI R8 SPYDER2011
AUDI R8 SPYDER2014 to 2015

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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A1524532075530_12024-11-06. Service bulletin. This bulletin provides informatin when the engine does not run smoothly at idling speeds.
A2424632074810_22024-10-28. Service bulletin. This bulletin provides information when ther is an Engine: start/stop system fault shown and start/stop system not is working; mileage below 50 km/32 miles.
A9124632044694_32024-03-06. Service bulletin. This bulletin provides information pertaining to MMI Navigation database concerns.
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20122420279122024-02-20. Service bulletin. Spyder rattle noise from left rear
01125720283442024-02-20. Service bulletin. Idle speed characteristic during cold start
Edition812024-02-12. Service bulletin. Elsa newsletter