E39 creaking

[miniman]

From the rear suspension of my E39 Touring. Really quite loud creaking actually. It has had airbags and shocks. Any thoughts on what to grease?

[Hawmaws]

I was getting a loud creaking from the back of my e39 saloon. Turned out it was the catches on the fold-down backrests. Bit of bog roll, sorted.....