BMW_Driver 78

Thanks Greydog…. Back to the garage it’ is then.

I recently had air compressor, relay, air bags (both sides) replaced on my 2015 BMW 520d Touring due to it sagging out completely and not reinflating (quite a bumpy ride home that day...). All parts supplied by BMW. Since then it goes down about half way when parked overnight and reinflates again immediately on start up and the ride is as expected. Any idea what may be the cause of this please before I go back to the garage. Thanks in anticipation.