on the blink

Haruki Murakamiの小説 "South of the Border, West of the Sun" を読んでいます。

If I hadn't met my father-in-law, I'd still be editing textbooks. Still living in a lousy little flat in Nishiogikubo, still driving a used Toyota Corona with an air conditioner on the blink. Now, though, in a short space of time I found myself the owner of two bars in one of the smartest parts of town, employing more than thirty people and making more money than I'd ever made in my life - or ever dreamed of making.

"on the blink" を調べます。

・Collins Dictionary: If a machine goes on the blink, it stops working properly.: [informal]...an old TV that's on the blink.
・Cambridge English Dictionary: When a machine is on the blink, it is not working correctly.: The DVD player is on the blink again.