I have a 2013 AWD Toyota RAV4 with about 152k miles on it. My transmission needs an RDI (likely repairs they saw burn oil in my transmission and fails shifting past the 3rd gear and on) estimated around $5,500, financed with the shop at a 0% IR for the first twelve months.

I’m opting to repair because I have a reasonable loan on the car still (roughly 7k) plus I don’t have many other options to open a line of credit besides taking a loan from my retirement.

Am I making the right choice, could my parts be worth more than the estimate?