Hi all, I have 2009 170TDi 4x4 and noticed the other day a slight squeak coming from the rear of the car when I got out if it, I found that when I rocked the car on both sides there is a slight and not very loud squeak coming from the rear suspension, you can't hear anything when driving, I can't see or hear where it is coming from, any ideas or is a bit of suspension sqeak to be expected?

If it's more of a hiss than a squeak that's the shock absorbers and is normal.