Seat Arosa Diesel Error Code

I have encountered similar symptoms with my Opel Vectra, though it's a different brand. A stored error code, accompanied by a check engine message, often points to issues within the vehicle's control module. Did you attempt reading the fault code using an OBD-II scanner? This may offer insights into the specific area experiencing a malfunction.

I used an OBD-II scanner and got a fault code pointing to a potential coding issue. You mentioned a similar problem with your Vectra. Was it also a coding problem, or something else entirely?

That's right. Engine diagnostics determined that the vehicle's coding was the root cause. Given your symptoms and the confirmed fault code, it would be prudent to consult with a workshop equipped to recode the control module. The check engine light and associated error messages can be irritating, but in my experience, can lead to bigger problems if ignored.

You were right. I took the car to a shop, and it turns out the control module was misconfigured. Engine diagnostics confirmed it. 360€ later, the malfunction indicator is finally off. Thanks for the heads-up!