im a tech at a hyundai dealership, from the top of my head you will need 8,10,12,14,17,19,21,22,24,30,32,t20,t25,t30,t40,5mm hex,6mm hex, 10mm 12point,12mm 12point, and tripple square for engine internals. this is not just sonata pretty much all hyundai, might have missed a few.