Hello! I can't find any info with this symbol on what liquid needs to be added here?! I have level below minimum. It's on the left side under the hood near the air filter box. Please see the image. Maybe someone can help me understand this?

 

That's the reservoir for your Active Cornering Enhancement (ACE) system. The ACE system works by putting pressure on the front and rear sway bars to counteract body roll in corners. When it works, it works really well. If it isn't working you'll have a red light in the dash that looks like the vehicle image with the arrows that you see on the cap. A fun fact is that the light will come on yellow if you corner a bit too hard. The system basically says "woah - chill out man! I can't help you much more than this!". I get that on my '06 Sport sometimes when I have my street tires on :-)

The ACE system takes a special fluid from Land Rover. Unfortunately I think it's like $50+ a quart. If it's low there's a leak in the system. The most common place for them to leak is from the rear sway bar "can" that does the work on the rear end. It's near the middle of the sway bar and about the size of a soda can. That's where mine is leaking. The last time I looked into fixing the leak was years ago and it was a $6k+ repair at an indy shop, so no thanks. Thankfully my leak is very, very slow. I just top it up every now and again. Top yours up and you should be good to go. Just check it every now and again.

Here's a pic of the fluid with the Land Rover part number. It's STC50519. You can get an off-brand on Amazon for $38 right now but I wouldn't personally use anything other than LR fluid in my system. The system is WAY too expensive to repair for me to risk an off-brand.