what is the point of the rubber "Seal" around the engine bay?

[vafan13]

I suspect it is keeping the sound in and thus want to remove it, but am curious if anyone knows of a desirable effect. Will I just let more "weather" in? thinking I'd surgically remove the back section near the windshield.

[AlisterB]

Originally Posted by vafan13

I suspect it is keeping the sound in and thus want to remove it, but am curious if anyone knows of a desirable effect. Will I just let more "weather" in?

My guess is that its primary purpose is to limit the amount of dirt and water entering the engine bay.

[vafan13]

thanks. Weather was my best guess. Keen the engine bay "clean". I also wondered if it might have something to do with aerodynamics or airflow. Stopping air from getting "sucked up" and going out the gaps in the hood? Not sure if there's anything to that.

I'm all about getting more engine sound in the cabin. Only hesitation besides not knowing for sure what it's for is it looks like this seal doesn't just pop off, so if I take it off, I'd need a new one (and probably a good amount of prep work) if I wanted to put it back on.

I might try moving the hood insulation first. that at least seems like I could get it back on, either with the same plastic grommets or new ones.

[Noggie]

I would be guessing as I haven't really checked on the F10, but these seals have been around for decades, even my old 1990 8-series has it.

Why?

1. Aerodynamic - a lot of air comes into the engine bay through the front grilles, you would want that air to be channeled correctly downwards.
2. The seal prevents above air to "wash over your windscreen" meaning any dirt that enters the engine bay dosen't end up on your windscreen.
3. The air intake for the A/C is behind the seal, thus any vapors from the engine compartment is not sucked into the inlet and into the cabin.
3. Same as 2 but for the A/C inlet, prematurely clogging up the filter and causing wear to the fan which sees unfiltered air.

Just my thoughts.

[vafan13]

Originally Posted by Noggie

I would be guessing as I haven't really checked on the F10, but these seals have been around for decades, even my old 1990 8-series has it.

Why?

1. Aerodynamic - a lot of air comes into the engine bay through the front grilles, you would want that air to be channeled correctly downwards.
2. The seal prevents above air to "wash over your windscreen" meaning any dirt that enters the engine bay dosen't end up on your windscreen.
3. The air intake for the A/C is behind the seal, thus any vapors from the engine compartment is not sucked into the inlet and into the cabin.
3. Same as 2 but for the A/C inlet, prematurely clogging up the filter and causing wear to the fan which sees unfiltered air.

Just my thoughts.

thanks!

[vafan13]

so now my next question is: we have a sealed, ventless hood, a splitter tray, and a jam-packed engine bay. where the heck does all the air going through the main/center radiator go? Is the splitter and undercarriage set up in a way to pull it down through the bottom (in a clean way, obv only place for it to go)?

[technician117]

Originally Posted by vafan13

so now my next question is: we have a sealed, ventless hood, a splitter tray, and a jam-packed engine bay. where the heck does all the air going through the main/center radiator go? Is the splitter and undercarriage set up in a way to pull it down through the bottom (in a clean way, obv only place for it to go)?

Yes. Modern cars are designed to bring air in through the front and front bottom, channel up through the radiators, across and around the engine and back down and out the bottom.