Seat Exeo engine issues

Sounds familiar! I had almost the same thing happen with my Exeo. Check engine light, rough idle, the whole shebang. Have you checked the oxygen sensor? A faulty one can really mess with the air-fuel ratio and cause mixture problems. Also, when were the spark plugs last changed?

Interesting! How did you figure out it was the oxygen sensor? I've read about those causing issues, but I thought it was more of a catalytic converter problem when the air-fuel ratio is off. And spark plugs... hmm, I think they were done maybe 50000 km ago?

Well, the oxygen sensor was the first thing I checked because it's a relatively cheap fix. But in my case, the mechanic said the readings were all over the place, pointing to a possible fuel delivery problem. Think of it like a dodgy tap – it's either spraying too much or not enough. Eventually, after some diagnostics, it turned out to be a faulty injector. Given your mileage and symptoms, I'd say it's worth getting the injectors properly checked. It's probably best to take it to a workshop.

Just got the car back. You were spot on! Took it to a trusted workshop, and turns out one of the injectors was indeed faulty. They replaced it, and the car is running like a dream again. Cost me 515€, but it was worth it to get rid of that awful jerking and stalling. Thanks a million for your help!