39039

My Mercedes S550 (W221) ball joint boot was broken. That's located at the front lower rear control arm. It is necessary to replace the entire control arm according to the requirements of Mercedes-Benz, (If don't replace the boot may lead to wear the ball joint with a long time). So they only sell the entire control arm. , the cost should be $300 for the genuine control arm, plus $100 for alignment, the number of costs should be $400 excluding labor. I found the damaged boot timely, so I decided to look for an alternative boot and replace it. The boot costs only $12 from Amazon. Ball Joint Boot Link
Here is the video

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DaleB

Hey, thanks for that!! Just this weekend I was under the car and noticed that my driver side boot is torn and needs to be replaced. Very timely topic for me, I appreciate it.

39039

You are welcome ��
And if you like my video, subscribe my channel, Thank you.

OldManBabyBody

Anyone done the uppers joints? Looking for what boots to use there.

P.S., used your tutorial today to success. Thanks and great job. (might want to note that your car is a 4matic, had the parts guy at Mercedes running in circles with the part numbers for my non 4matic).

BenzNinja

iTrader: (4)

Arrie

An old thread but did not want to start another one.

Just replaced the front right lower control arm, the rearward one with the Airmatic strut mounting. I was able to change it out without going under the car and removing the bottom covers. The plastic cover flex enough for wrenching it thru the wheel well. This made the job much easier than setting the car up high enough to remove the bottom covers.

Part cost $147 + tax from FCP Euro and the job quite easy.

Just remember to measure the distance between center of the wheel to the top of fender when car is at normal height before the job. You need to set this distance before you tighten the bolt at the inside end of the arm under the car.

EURO-JIM-121

Since I got my W221, been looking at some of these posts. and have a couple questions:
How did you do this job without getting grease on your pants, shirt? HA

Next, more technical: This would be fine if only the boot was torn, but generally speaking, I've found worn ball joints before seeing torn boot. Grease wont stop a joiny from clunking.

39039

1, Sometimes I used to get grease and oil on my shirt, I just won't show it

2, If the ball joint is already worn, you have to replace the entire control arm to solve the clunking.

EURO-JIM-121

HA, I wouldn't wear a shirt with a hole in it if I was going show in a video.
I'm the owner of a new-to-me 2008 S550 and love it. Your videos are very classy. Thanks in advance and I'll be looking at them all.

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Bayrat

Love your posts. Most efficient mechanic I’ve ever seen! Thanks for sharing all your knowledge!

gfmerc

Recall from MB USA if not done already