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E46 Xi Forum
The E46 XI was produced from 01-05 in sedan and touring body styles. Powered by either a 2.5L inline 6 in the 325xi or a 3.0L inline 6 330xi. Discuss all thing about BMW AWD E46 'Xi' here.

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Old 09-17-2013, 06:24 AM   #1
sminnich
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My Ride: 04 325xi
Front Suspension Rattle

I just finished replacing a lot of my suspension (Rear shocks/coils, front struts/coils, control arms, fcab, and inner ball joint) and now I Have a rattle whenever I go over a decent bump in the road. What I'm wondering is, is there different torque specs for I models vs. XI?

I'm under the assumption that one of the components is still loose. I'm going to start by tightening down the strut hat nut a little more once I get a hold of the right size spark plug socket. besides that, do I have to remove the front axles for tighten the outer ball joints more?
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Old 09-17-2013, 07:39 AM   #2
YaSureYouBetcha
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Front Suspension Rattle

Just had a similar issue. It turned out to be my front sway bar links. If everything else is replaced, that's your likely culprit. Check the sway bar bushings while your under there...


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Old 09-17-2013, 08:00 AM   #3
sminnich
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That's what I was thinking too. At least those are cheap.

Quick question: should there be any movement in my outer ball joint? my alignment guy said that it had some vertical movement.
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Old 09-17-2013, 08:42 AM   #4
SamDoe1
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Quote:
Originally Posted by sminnich View Post
That's what I was thinking too. At least those are cheap.

Quick question: should there be any movement in my outer ball joint? my alignment guy said that it had some vertical movement.
Shouldn't have any movement. Make sure the nut is fully tightened down.
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Old 09-17-2013, 09:04 AM   #5
YaSureYouBetcha
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Front Suspension Rattle

+1 on the ball joint, it should be tight.


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Old 09-17-2013, 09:24 AM   #6
sminnich
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I guess I'll try to turn it some more. What do you guys suggest for keeping it from spinning?
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Old 09-17-2013, 10:41 AM   #7
SamDoe1
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^ Put a jack underneath it and press it upwards to provide some resistance to turning.
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Old 09-17-2013, 07:42 PM   #8
rawbspear
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i used an milwauee 12v impact driver. did the job without having to hold the joint in place

Last edited by rawbspear; 09-17-2013 at 07:43 PM.
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Old 09-18-2013, 09:19 AM   #9
SamDoe1
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Originally Posted by rawbspear View Post
i used an milwauee 12v impact driver. did the job without having to hold the joint in place
Not possible if front axle is still in the car.
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Old 09-18-2013, 09:37 AM   #10
rawbspear
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my front axle was in the car; i was assembling it after installing the new CV axle as a matter of fact.... i am talking about the sway bar link, not ball joint.
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Old 09-18-2013, 09:45 AM   #11
YaSureYouBetcha
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Front Suspension Rattle

On the sway bar link, there is a torx built into the end of the stud on the OE part. Otherwise hit it with an impact driver, if needed you can hold the stud by wedging a channel lock between the link and strut tower. Mine came out just by using the torx and a box end wrench after I loosened it up with the impact...




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Old 09-18-2013, 09:54 AM   #12
rawbspear
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i have new link on, dont now if that makes a difference, but i was able to get nearly fully torqued with the impact alone. i did make sure with the torx and wrench though.
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Old 09-18-2013, 09:56 AM   #13
rawbspear
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you could also have a lose door hinge. i read that a guy thought it was his suspension and after months found his driver side door hinge was a little lose and the door was making the rattle noise.
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Old 09-18-2013, 10:06 AM   #14
SamDoe1
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Impacts aren't good for ball joints, use the torx and a ratcheting box wrench and you should be able to loosen/tighten in minutes. Bonus points for using a not ratcheting box and a ratchet with torx socket to do the same job but faster.
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Old 09-18-2013, 10:19 AM   #15
YaSureYouBetcha
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Front Suspension Rattle

Agreed on the install side of the process. I only use the impact when trying to free the old part. Mine were corroded pretty bad, so a couple squirts of PB, and a hit with the impact loosened them right up. Definitely would not use the impact to install the new...


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Old 09-18-2013, 05:42 PM   #16
rawbspear
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well i disagree with you both, took me 2 minutes to have the SWAY BAR LINK INSTALLED. you guys will be still jerking around when i am lowering my car.

You both realize i am using a 12 volt impact driver right?
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Old 09-18-2013, 05:43 PM   #17
rawbspear
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lol, i am laughing at you guys...

Last edited by rawbspear; 09-18-2013 at 05:44 PM.
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Old 09-18-2013, 05:47 PM   #18
YaSureYouBetcha
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Front Suspension Rattle

To each his own Bud. :-)


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Old 09-18-2013, 05:51 PM   #19
Kubica
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TIS states specifically NOT to use impact wrench on front sway bar links.
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Old 09-18-2013, 05:59 PM   #20
rawbspear
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ok, fine, also says gearbox oil is lifetime and that we have to use a lock valve on our manual clutch. cops want me driving under 55, and my mom wishes i would go back to school

12 volt impact guys,, not a 100psi impact wrench,, thing barely does 10 newtons!! furthermore if you read my post, i finished torque with a 16 and a torx wrench.

Last edited by rawbspear; 09-18-2013 at 06:03 PM.
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