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Service bulletins for the 2018 Audi RS 5

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.

682 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Cooling system are shown. Show all

Bulletins, newest first
A1923452070349_22023-12-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This bulletin provides information for when there is a loss of coolant from the coolant pump - V6 TFSI.
A1923392070349_12023-06-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This bulletin advises that a small amount of coolant loss is normal. Otherwise, clean and visually inspect the coolant system in the presence of a small leak to verify if a repair is needed, and then to repair a component if it is verified to have been leaking actively.
A1922272025303122022-02-04. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; EQUIPMENT. This bulletin contains instructions for identifying and mixing factory fill coolants.
A9020652032113_42020-09-03. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:COOLING SYSTEM. This information bulletin contains a background on the outside air temperature reading.
A191789 2046712-2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This informational bulletin contains guidelines for figuring out why coolant marks are present around the coolant expansion tank cap.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.