Irregular and premature tire wear can be caused by the front thrust link bushings cracking and causing excessive movement in the suspension. The thrust link bushings are fluid-filled (to help reduce vibration), so if they crack, they will leak oil.Google+
Car Problem Reports
Mercedes-Benz CLS500 Tire Wear Caused By Worn Front Thrust Link Bushings
Mercedes-Benz CLS500 Problem
Model Year Affected: 2006
Average Mileage: 58,750 mi (45,000 mi - 72,000 mi)
Visitor, 2006 Mercedes-Benz CLS500, 61,000 mi
We have a 2006 CLS 500 with clunking and popping noise in the front end (and under my feet). After 4 attempts to replicate the "noise", we left the car at the dealership for 4 days. There was a "cracked spring/pulling link arm bushing replaced. along with both front spring link bushings cracked." The RF strut had an internal seal failure with the RF strut leaking oil. It was replaced as well. Finally, after several attempts, we picked up the car today. It seems to have fixed the problem. Funny, though, the dealership says, "this condition was found to be present in both the same model and other models. This is NOT ABNORMAL, and no further action is needed." How do you like that? A $71,000. car that never, ever had this problem. Now at 60K, this is "NOT ABNORMAL". So hopefully, this time, it is fixed. We hope we helped you as well.
Visitor, 2006 Mercedes-Benz CLS500, 57,000 mi
My model is 560 SL. I changed brakes and drums on all brakes and then I started to hearing this sound and there were black oil spots on both side panels next to each wheels. Tookmit to the dealer. Could not duplicate the sound. Told them to go to a quiet residential area with a speed bump. Well, they heard the sound when they took,the car back tot dealer parking lot. Now they are saying it is spring link on right side. And that if I don't fix this it will eventually damage my entire front suspension system so quote is $1000, and normally tires or a tire would worn out unevenly. I mentioned that we recently changed tires before life expectancy period. Now, they are changing their story. Not sure why I was not aware of this sound. Thank you
hearing this noise coming from my front wheels, took my car in to a Mercedes dealership and was told it's a common problem seen in cls 500. I was told my tires are worn un-evenly and I may need new tires. I still belive my problem has to do with the struts. Not fixed yet.