Have had my ZS for coming up to a year, I bought a donut after 3 months and shortly after I noticed a creaking sound, definitely creaking not squeaking/knocking ( sounds like polystyrene or someone opening the lid of a straw picnic basket repeatedly ) assuming it was the spare I put a piece of carpet under it but the creaking continues.
Have investigated the parcel shelf, the boot floor, the headrests and rear seats but to no avail. Thought it was the plastic moulding on the inside of rear door touching the painted metal and fitted a rubber seal, but nope !!
Due to this thread am now trying to investigate the sunroof and am awaiting some silicone spray to be delivered .
Am in Thailand and really liking the car apart from this noise, the gf doesn’t seem even bothered by it but it is really grinding my gears!!