Italiano731

2006 Mercedes cls 500 has a horrible squeaking sound coming from the front passenger side. If I hit the brake hard and it puts force on the front end or if I hit a big bump I hear a squeaky mattress sound. Please if anyone has this problem please let me know how to fix it or what to look for in the suspension. I read it could be where it connects to the frame?

Thanks
Chris

S500 Man

Check Ball joints.

Italiano731

I went to this local shop and he said he sees this problem all the time. Factory Mercedes ball joints still stay tight but loose grease inside them over time. He had a very tiny needle almost caulk gun that he shot through the rubber seal and into the ball joints. Problem solved gave him $20 and the most embarrassing sound is gone hopefully for a long time. But I had to share it, he said don't put any oil or anything on the outside of the joints because it will just return, but go inside the rubber seals with a very tiny needle and grease. Hope this helps someone.

S500 Man

So i was right! Lol post some pics of your new ride!!

550coupe

Bringing back an old thread. Just noticed that my 07 cls550 started doing this today. Same sounds from the passenger front end as described above. Only question is I thought these were sealed ball joints? How did the shop inject grease, poked a hole through the rubber? Any help is appreciated.

marvin jones

Did you ever get that fixed and was that the problem?