Could there be engine failure

hi friends, good night to all;

I will have a question, I came 300 km from the road, opened the hood of the vehicle, then opened the oil section while the vehicle was running, the engine is not too extreme, but there was a blow, at the same time, there was a smell of f, my vehicle is 103000 km, I wonder 1.4 hdi, my engine life is decreasing. it feels like something is burning, thanks everyone in advance

I think it is obvious that there is a problem in the engine, show the engine of your vehicle to a good master as soon as possible

Is there a problem in the towing of the vehicle? Is there any power loss?

the traction does not change well, the 4th gear makes 140 but it does not exceed 150 when 5 is installed, I do not spend any maintenance, I always do it on time.

your engine may be deaf in 5 gears, the vehicle must reach the top speed

Is there a situation such as a lot of fat reduction?
I am asking because a slight blow is normal when you open the oil cap.

it is normal 150 tire type in 5th gear, etc. effects it but you can use it from the same vehicle for maximum 170-180.

Isn't this smell and the smell of burnt oil normal because of the pressure in the oil filler cap? Do I know wrong?