Should you keep fixing an old car when repairs top its trade-in value?
As seen on the 24/7 Wall St. homepage on October 14, 2026.
It might make more sense not to look at repairs compared to the value of the car, rather, how much money you spend in repairs versus payments on a new car. Once you reach the threshold of expecting to spend more money keeping the old one working, it'll be worth it to trade. You'll be making payments, but hopefully not fixing frequently enough to register.
A $4,000 timing chain quote on a car worth $2,500 feels like an easy no, but 179 commenters say the trade-in number is the wrong benchmark. The real comparison is five years of repairs against a car payment plus insurance and depreciation.
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The framing of the question is almost universally rejected by the 179 commenters who weighed in. A car's trade-in value tells you very little about the real financial choice in front of you, and the thread makes a compelling case for why.
The original poster owns a 2014 BMW 328i facing a timing chain replacement quoted at $4,000, after roughly $3,000 already spent on the valve control system. With a trade-in value well below that, the instinct is to call it a loss and move on.
The top-voted response, from RSwordsman, reframes the decision entirely: the repair bill belongs next to the cost of a car payment on a replacement. Once expected repair spending starts to exceed what a monthly payment would cost over time, the math shifts toward trading in.
Several other commenters reinforce that the absence of a car payment is itself a significant financial asset, and that buying a used replacement carries its own repair risk. The fair comparison is a multi-year total cost of ownership on both paths, accounting for financing, insurance, depreciation, and ongoing maintenance on whichever vehicle you choose.