Seat Cordoba Coolant Loss Issue

Low coolant can be a pain. Had a similar issue with my old Renault Megane. The check engine light kept popping up. Did you check for any obvious coolant leaks under the car or around the radiator hoses? Sometimes it's as simple as a loose clamp.

Thanks! I've glanced around, but nothing obvious jumps out. You mentioned loose clamps – were they visibly loose, or did you only find out when you tightened them? And what about air pockets? Could that cause this?

Mine wasn't obviously loose at first, but I could wiggle it a bit. Air pockets could definitely cause issues and give you false readings. But if you're losing coolant, it's got to be going somewhere. If you can't find the leak, getting it pressure tested at a workshop might be the best bet.

Just got the Seat back from the workshop. Turns out it was indeed a dodgy connection, just as suspected. 95€ lighter, but at least the light's gone. Appreciate the help!