Door click / rattle

[RobMea]

I’ve noticed a rattle / clicking noise which I think is coming from the driver side doors of my B9 RS4 once the car is up to temperature, but only at low speed on bumpy surfaces. At speed the car is silent, even when cornering and braking etc. I’ve read lots of other threads about door rattles etc, but I’ve taken the door cards off and nothing appeared loose or to be an obvious source of the noise.

What’s strange is it only occurs once the vehicle has been driven for a decent period of time. If it’s only a 5-10 minute journey then the noise doesn’t occur.

Any suggestions / guidance would be very welcome…