I have a 2004 s430 with about 50K. Owned it since new. Within last 4 or 5 months, ride has gotten very rough - feel's worse than my wife's truck. Feel every bump. Dealership has been unable to identify anything wrong, but replaced front struts. Checked tire pressure, etc. multiple times.

Took it to local mechanic. He immediately said something is wrong -absolutely no give in front end. If you push down, it doesn't even move, while back end will go up and down a bit.

Used to love this car's ride; now I don't drive it anywhere. It's too rough of a ride.

Ideas? Suggestions?