Hi Ajin,

In general, if you’re seeing problems with a circa-2012 Ford Focus automatic transmission, it’s usually down to fluid leaking onto the clutch. The automatic was a six-speed dual-clutch style system (similar to the Volkswagen DSG gearbox, and supplied to Ford by Getrag). They can start to experience juddering or shuddering under acceleration, and that’s because the input shaft seals can leak, allowing transmission fluid to get onto the face of the clutch. If it’s really bad, you need to replace both the seals and the clutch units, which is expensive, but sometimes it’s just a matter of replacing the seals and cleaning the clutch mechanism (though obviously the gearbox has to be physically removed). If the car has a full and complete service history, then there’s less to worry about, but obviously it’s an issue to look out for.