Been Complaing about the grindig Noise from my rear suspension
And it turns out that my rear sub frame bolt snapped off

Just like shardul said thanks man

Pass rear


Driver rear

 

I have seen the symptoms you had mentioned on countless E and CLS class

Drill the old bolt out, the nut is welded onto the chassis and it will be use less since the threads will get messed up when you drill it out. Use a longer bolt and nut assembly. You will have to cut some sheet metal to thread the nut in on the longer bolt.
1 hr job if you have the right tools

 

Quick suggestion brahhh... I say buy the left side one too so both are new.... I think am going to buy two as well and swap em to new just prventive maitinance. I mean 4$ each aint gona hurt

 

Thanks shardul!
Where would I be able to get a good quality grade bolt long enough ?

 

I'll be in Tampa Tom brah I'll pick them up for you

 

Can someone post the part numbers for the bolts please?
Thanks!

 

0029907422 is the eom part number
But I don't know if there is a longer bolt yet

 

Use the same nut and bolt that goes in the front control arm bushing it is longer and the same grade.

 

This might be part of my upcoming maintenance i have to do. I am going to pass the part number over to my indy shop. I assume these bolts get loctite unless there is a lock washer on them i cannot see?

Aaron

 

Yes they got about an inch with blue lock tight at the top

 

Ok brahh pick me two

 

Where exactly are these? Might as well check them myself

 

They are at the rear sub frame bushings. You can miss them literally right by the rear back side tires

 

Here is what it sounds like
http://i21.photobucket.com/albums/b2...639EAFD6DA.mp4

 

Another thumbs up to Shardul. He seems to know his stuff as he has helped me out and been dead on before!

 

+1111 thanks from me too, always up to help out he always answers his phone or texts... i was stranded on a side road one day had no idea what was going on so i called him explained the issue and boom next thing he told me to look at was the issue... 5 min later i was on the road on my way home

thxx man

 

Why not drill the bolt with a smaller hole and simply extract it. No damage to the nut.

 

I took it today to bertii00 friend shop that works on some nice cars he said he will drill and unscrew it out.
Here are some cars he works on

 

very hard to do that with the subframe on the car. we tried to do it before using an oversize drill bit

 

He said he is goin to try and if he can't he will have to drop the rear end to get it out.

 

For those that have modded cars and have not sheared off the bolt, I wonder if simple replacement would be a good preventative maintenance.

I assume the bolt is under repeated heavy load which ultimately leads to failure. Given these cars are now 7+ years old, maybe its a good call to replace every 5 -6 years just to be safe? -And while they are still removable


0029907422 looks like the part is around $4 ea

 

+1
Will do mine over the weekend. They are $2.28ea @ parts.com

 

thats what i siad

 

change out all 4 bolt, not just the 2 on the rear portion of the subframe.
Now of the bolts are strong the chassis mounting points are also know to tear so if this happens in the future you all are looking to spend major money to fix.

 

so there is more than 2 bolts???