Mazda TSB #01-006-20-3695b
2020 Mazda CX-5
Affected Component: EQUIPMENT ADAPTIVE/MOBILITY
- Summary
- Some vehicle may exhibit a tapping noise from the engine during idling; etc., and synchronized to the engine rpm. The tapping noise may be caused by the switchable hydraulic lash adjuster (HLA), which may not work properly due to air bubbles accumulated in the oil passage in it.