This reminds me of the 2007 VW GTI I financed back in 2011 with CarMax. I got it used with 41,400 miles and after the 60,000 mile mark it was a new problem every month. CEL always there, misfires, front CV joints were bad then replaced, pcv was replaced, humming brakes replaced, a/c compressor went out and replaced. All this was covered under warranty but I had to pay a $100 deductible for every repair.
Is there a way you can just trade in the car for another one?
I would use those $2,400 for a down payment on another car. Maybe a 2019 Toyota Corolla...