Knock knock knocking

[flynP5]

How do you know if its getting worse, does the knocking get louder. Right now it sounds faint and can only be heard at low speeds, mostly when I'm backing up.

I'm also only a 12 minute drive to work, so I don't put to many km on in a week.

Turns out it was the stabilizer in the rear, small part needed replacing, $190.

Also needed a ABS sensor, there should be a recall on these sensors, I've had to replace 2, in the last 2 years.