Do you have a senior driver? The car I rented two days ago showed check oil level (check oil level) △ yellow light while driving halfway today. What should I do? Will I be fined when I return the car if I ignore it ?

Then you check if the oil dipstick is not enough oil, open the hood, there is a hook, pull it out and it is the oil dipstick I also rent a Passat... I hope it will not burn oil like this

Just reminding you to check the oil level when the car is completely cool. If it's below the position on the dipstick, go buy some oil and add it. Gas stations usually sell oil.

Call the car dealership and tell them about the car situation. Generally, they will ask you to add some oil and keep the receipt. The cost will be reimbursed when you return the car. If you haven't driven it too far, you can ask for a replacement car.

I estimate that Passat is now an electronic oil level gauge, checking the oil level on the center console screen. If you are not sure, add half a liter of oil first.