Cracking back right with heat

@ all, have changed my shock absorbers, Stabilager, couplers back two years ago. They have now about 10,000km behind them. I have now found on the WE that it cracks back right. As if a screw has light play. It was now very warm on the WE and I had these cracks back right. Today we have it cooler and see there, NO cracking noises back right. Heck also pressed in with hand. What can that be now??? Normally the shock absorbers do well Noise, if it is colder. But now I had this noise with the heat at the past WE. Control view did not result anything further. So could not notice much. The entire wheel suspension (rubber bearings) etc. make a healthy impression. Have had someone press back and put me under with flashlight. I checked also once all the coupling rods with stabilizer and what else goes on the rear wheel on fixed seat. In my opinion everything is ok. As I said, the noise occurs in heat, at the rear right, when the rear is already pressed in and when driving. It is the highest position at the upper height of the wheel. Shock absorbers do not oil. Folding bellows sit over it. Feather dome visual inspection. Does it seem OK. I put my hand on the rear wheel and someone presses the rear slightly I feel the noise at the hand. So it is transferred well on the wheel. Does anyone have an idea? Drum brake plus brake pads everything NEW. Last week self-insert ebaut. The DEKRA brake dynamometer is all right. I also released the hand brake once, cracking was nevertheless. That can be something if it gets warmer again soon. So, am open to any suggestion. Greetings Che05