Mazda TSB #01-019-19-3628
2019 Mazda MAZDA3
TSB Document:
Affected Component: ENGINE AND ENGINE COOLING
- Summary
- Some vehicles may exhibit oil leakage from the drive belt auto tensioner and rattling noises from the engine compartment. This may be caused by insufficient sealing at the drive belt auto tensioner damper when the auto tensioner fully operates under both high ambient temperature and high load conditions. To eliminate this concern, the shape of the drive belt auto tensioner damper has been changed.
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