Driving is fine
Boosting is fine
5 speed auto transmission has no grinding or wierd sounds
All is fine

But some thing strange gtg on under the 5 speed auto tranmission, at interval the auto gear will dis engage itself and the engaged gear indicator on the dashboard will goes off. On gear 4 and above when it happens, although the dash indicator does not show the gear it engaged into now, the car still do pickup upon rev but sound loose ( rpm up car moves slow)

On low gear when dis engage hapens the car rev freely like it is in neutral.

when this happen the only way to overcome it is to quickly shift to neutral and back to Drive mode again
if i am lucky it engages n my drive continues till the next visit of the issue

Issue only happen at interval. Sometime for a long time it doesnt happen n it comes back just suddenly

Any idea guys ?

 

Upload a short clip that show the disappearing of the gear indicator while gear is in D mode.

Any idea ?