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December 20, 2018 Service bulletin

Emissions Service Action 23Z3 / Improved Post-AEM Engine Control Module Software (AEM-C)

Volkswagen technical service bulletin 23Z3 for 2013-2014 Volkswagen Passat.

Bulletin number
23Z3
Component
Electrical system
Summary
Emissions Service Action 23Z3 / Improved Post-AEM Engine Control Module Software (AEM-C)

Owners of these vehicles have filed 167 complaints in the electrical category.

Vehicles covered

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