Summertime just arrived in France and we have now temperature up to 90 F°.
Despite my engine cools very well, I'm always looking to improve temperature in the summertime so here are my questions :
I've always wondered and still do, why the side air vents on the lids are not opened.
It would bring fresh air in the engine compartment and would create a welcomed air circulation.
So my questions are :
-Were they originally closed (fake)?
-If so, did anybody ever try to open it ?
-If yes, did it really bring something to engine bay temperature ?, did it create downsides (vent noise, anything else)?.
Thank you for your answers,