[horsegate]

I have a new i30 SR and have an annoying soft/muffled knock at the rear of the car. I think it is the rear parcel rack or the boot floor but can't detect it when the car is stationary. Does anyone have any ideas?  Thanks, Bob.

[cruiserfied]

Is the spare tyre secured?

[horsegate]

Ichecked it one but I'll do it again in the morning. Thanks, Bob.

[Phil №❶]

Check the rear seats at the top where the backrest meets the holding locators. Sometimes they rattle there.

[Surferdude]

Parcel shelf or boot can both cause it. Easy to remove the parcel shelf to eliminate that.
Then wedge a piece of rag in the boot latch. That'll stop it moving if it is the cause.

But, it could be something as simple as a rear seat belt buckle touching the side panel.

[joebris]

Check the rear seats at the top where the backrest meets the holding locators. Sometimes they rattle there.

I think Phil on the money here. I use a bit of insulation tape to increase the diameter of the holding pin, knock gone

[Surferdude]

Check the rear seats at the top where the backrest meets the holding locators. Sometimes they rattle there.

I think Phil on the money here. I use a bit of insulation tape to increase the diameter of the holding pin, knock gone

Mine don't knock. But the tape is what I used on the boot pin.

[eye30]

I had noise in my previous fd and it was the exhaust hitting a bracket which straddles the 2 halfs of the car.

Checking under the car it had been bent slightly and was catching with the movement of the car

[neptune]

Get a friend to either sit in the back or drive the car , while the owner either drives or sits in the back to check out where the noise is coming from....