Please tell me I took the right decision in repairing my car

I just spent a little under $1,000 to change the radiator on my 2013 Volkswagen Golf with 205k km. I was a little hesitant to proceed because the repair is expensive and represents about 1/3 of the value of my car.

In the end I decided to go with it because that's like 2 months of payments on a new car with $20,000 down.

Please tell me I won't regret this decision.