Seat Ateca suspension issues

I also own a Seat Ateca and experienced similar symptoms with the pneumatic suspension. The leaning, bumpy ride, and error messages sound very familiar. Have you checked for any audible air leaks around the suspension system, especially near the air springs or the compressor? It could be a sign of a failing bellows valve.

Thanks for your input. I haven't checked for air leaks myself, I am not really experienced with suspension systems. Where exactly should I be listening for these air leaks, and how loud would they be?

Given your lack of experience, I'd recommend taking it to a workshop. The air leak I experienced was noticeable near the suspension air bag itself – a hissing sound when the car tried to adjust the suspension. Since you have error messages and the car is leaning, it's likely a more serious air leak. Continuing to drive it in this condition could damage the compressor or other components of the suspension system. A faulty bellows valve seems like a very plausible cause.

Thank you very much for sharing your experience. It seems like I have the same problem. I took the Ateca to a workshop and they confirmed that the bellows valve on the pneumatic suspension system is faulty. The cost for the repair is estimated at 590€. I've approved the repair, hopefully, it will solve all the issues.