Servus 🙂 Since yesterday I have a new town car with the following problem: As long as I am travelling with only one passenger, the car drives perfectly without errors and nothing, over many 100km. As soon as one or two people sit in the rear, “Check Air Suspension” comes in the instrument cluster. Can you give me tips for troubleshooting? The compressor and the air bellows were replaced just three years ago, they should not be through again. Is there a sensor, or yes, there is, of course, but lo Is it possible to clean it somehow? Thank you for your help, Greetings Tim