Thanks, Mr. Joe for your prompt answer. I am delighted and appreciative of your concern and love.
Firstly, for the check engine. It doesn't stay on when the engine is running. There's no ruling out of the possibility of exhaust leak. Will definitely check it because I earlier thought the sound of A Quatro Golf 4 & Model is actually high than normal. Probably, I mistook it to be normal.
In fairness, the Humming sound is not heard at low speed level. The engine sound is only heard at High speed level. This morning, on my way to work, at 80km/hr the speedometer failed to rise above it and the acceleration slipped. Thank you for being there
Friday, January 11th, 2019 AT 1:46 AM