lsw79

First of all, I am driving a 2017 is200t.

Recently, I found suspicious noise coming from the suspension of the rear wheels (could be!). My mileage is around 3100miles. A small knocking noise (not sure coming from suspension or wheels) can be heard when rear wheels touching the even ground after going over the road hump or the rear wheels touching the even ground after going down a slope. I thought I might be going slightly too fast, but even slowing down before the even ground also cause the knocking sound.

I have already asked the service center to check on it, but nothing abnormal is found. The absorber is in good condition too. Couldn't pinpoint the fault is from where. Anyone can advise? Thanks.

E46CT

Not really. Can be anything. Depends on your definition of knocking and your definition of everything else you typed. Could be something inside the trunk, the doors, could be a shock mount. Hard to say. Try to take a shop foreman for a drive, don't take no for an answer if you truly are hearing an abnormal noise.

SwiftIS

Double check your lug nuts.

Is200tnc

I had 4800 miles on my 2016 is200t and the rear shocks started knocking (bottoming out) Had replaced under warranty at dealership. Was told they must have had a bad batch from manufacturer. Take a look at your shocks and make sure they are not wet. If they are then have dealer replace. If they are dry then might be something else.

jkonquer

Could be the notorious emergency brake cable. Push the e-brake several times and see if that works. Had the same probelm when going into a driveway.

lsw79

i have checked the shocks, they are dry. Must be something else. Thanks.