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Service bulletin 2017A4PD4-18-16

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 id10094322
Published by NHTSA2017-03-08
Manufacturer's number2017A4PD4-18-16
Manufacturer's date2016-04-18
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM

NHTSA's summary

ADDED TO ON-HOIST INSPECTION SECTION: PERFORM A COOLANT RESERVOIR CAP PRESSURE TEST*

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Cooling system

Vehicles listed
AUDI A4 ALLROAD2017

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
A191789 2046712-2018-02-05. Service bulletin. This informational bulletin contains guidelines for figuring out why coolant marks are present around the coolant expansion tank cap.
A011717 2047707-2018-02-05. Service bulletin. This informational bulletin provides instructions for when DTC P195000 appears but there is no customer concern.
A201673204447812017-02-11. Service bulletin. THIS TECHNICAL SERVICE BULLETIN PROVIDES INSTRUCTIONS FOR RECONNECTING THE FUEL HOSE INSIDE OF THE FUEL TANK.
A171675203811972016-10-06. Service bulletin. THIS TECHNICAL SERVICE BULLETIN INSTRUCTS THE READER TO TEST FOR AND REPLACE A DEFECTIVE OIL LEVEL SENSOR.