Hello, I am new here. I have a 430SC 2007 with 62000 miles. I feel that it has become a bit bouncy. My wife drives a Mercedes C300 and the ride is way more smooth.

I'd like me 430SC to have such a smooth ride. Should I replace the shocks or is the 2007 suspension inherently bouncy? I am a total novice with no technical background and am afraid that the Lexus dealer would sell me a bill of goods.

What should I do?

 

Have the car inspected - see if the shocks are leaking fluid. In my case, when I noticed excessive bounciness, it was because my shocks were leaking and replacing them with OEM or OEM equivalent resolved the issue. I am now driving a C300 loaner handed to me by my MB dealer - it is firmer than the SC430. My 2005 has a softer suspension than the 2004 and older though ( it was this way from the factory ) as early year SC430 buyers complained about the harsh ride.

 

Get rid of the run flats if your SC still have them.

 

This is what I did when I got my 05 SC 430 few years ago. Replace all 4 shocks, then replace all tires to 245/45R18. It runs 200% smoother.