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November 10, 2016 Service bulletin

Certain sonata vehicles equipped with the 1.6L turbo engine have a manual alternator belt tensioner system

Hyundai technical service bulletin 5NP-D5E6F-12 for 2015-2017 Hyundai Sonata.

Bulletin number
5NP-D5E6F-12
Component
Engine
Summary
Certain sonata vehicles equipped with the 1.6l turbo engine have a manual alternator belt tensioner system. The top alternator mounting bolt (a in the diagram) may break over time if it is tightened over specification and could result in illumination of the battery warning light and/or the engine overheating in some cases. This bulletin describes the procedure to replace the top alternator mounting bolt.

Owners of these vehicles have filed 1,517 complaints in the engine category.

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