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Service bulletins for the 2018 Volkswagen Beetle

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.

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

About U0100 on the 2018 Volkswagen Beetle: what the code means, and the bulletins and recalls about the same components.

By type

By component

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Only bulletins with trouble code: U0100 are shown. Show all

Bulletins, newest first
TT 01 19 05_62024-03-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). Engine Crank, No Start or No -J623- ECM Communication with DTC U0100 Stored in ECM Fault Memory
TT 01 19 05_42021-12-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. Diagnostic assistance for no start or no communication with ECM with DTC U0100 stored.

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