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Old 04-29-2013, 08:27 PM   #1
sandman512
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Strange clunking noise coming from front end and strange grinding noise when stopping

History. 2005 E46
47,xxx miles
New Front Control Arm Bushings.
New front/rear brakes.

Problem: When going over lets say a speed bump, I hear a clunking type noise in the front end. To pull into the my garage, I have to back up first and I hear the noise hear and when going over the small garage lip. Another issue is that I'm also experiencing a grinding type noise when coming to a stop. It sounds like GRRRRRRRRRRRRR. Any input would be appreciated. Thanks!
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Old 04-29-2013, 09:16 PM   #2
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The clunking sound is possibly the Sway bar End links. They're relatively cheap.
You might start shopping around for a complete suspension overhaul, as you're nearing 50k miles.

The grinding noise, assuming its a rotational sound...could be a sticking caliper, possibly a wheel bearing, maybe just uneven worn out pads. <----(Edit) forgot that you have new pads...new rotors too?


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Old 04-29-2013, 09:23 PM   #3
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Thanks for the reply. I'm pretty sure the grinding noise sounds like it is coming from the front end.
Edit: yes,new pads and rotors.
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Old 04-29-2013, 10:27 PM   #4
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Bad caliper pin! Mine did the same thing. $10 fix

Sent from my DROID RAZR using Bimmer App
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Old 04-30-2013, 05:42 AM   #5
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Do I need to replace the just the pin?
Thanks!
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Old 04-30-2013, 10:50 AM   #6
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Re: Strange clunking noise coming from front end and strange grinding noise when stop

If indeed that is whats causing YOUR grinding problem, then you probably don't even need to replace it, just clean the pins up really well, and lube them...remember we're just guessing based on our own experiences.

Also check the dust/splash shield that covers the back of the brake rotor, sometimes they get bent, and make contact with the rotor as well, causing a scraping sound.
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Old 04-30-2013, 10:51 AM   #7
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If indeed that is whats causing YOUR grinding problem, then you probably don't even need to replace it, just clean the pins up really well, and lube them...remember we're just guessing based on our own experiences.

Also check the dust/splash shield that covers the back of the brake rotor, sometimes they get bent, and make contact with the rotor as well, causing a scraping sound.
I must spank you, Mike.

BMW TIS specifically says to keep pins DRY. No lube. That means no Gummi, either. D has been a bad influence on you.
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Old 04-30-2013, 12:27 PM   #8
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Re: Strange clunking noise coming from front end and strange grinding noise when stop

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I must spank you, Mike.

BMW TIS specifically says to keep pins DRY. No lube. That means no Gummi, either. D has been a bad influence on you.
Damn...I have been lubing the pins forever Thanks for the heads up.

So just clean them really well with brake cleaner, and simply reinstall?

I am going to have to clean mine now
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Old 04-30-2013, 12:28 PM   #9
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Damn...I have been lubing the pins forever Thanks for the heads up.

So just clean them really well with brake cleaner, and simply reinstall?

I am going to have to clean mine now
Yes. the idea is that the grease attracts dirt and clumps it up together and jams things. Also some greases may deteriorate the bushings. So lose/lose. I know on most cars, you lube them.
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Old 04-30-2013, 12:30 PM   #10
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Re: Strange clunking noise coming from front end and strange grinding noise when stop

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i must spank you, mike.
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Old 04-30-2013, 12:32 PM   #11
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Old 04-30-2013, 12:32 PM   #12
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Re: Strange clunking noise coming from front end and strange grinding noise when stop

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Yes. the idea is that the grease attracts dirt and clumps it up together and jams things.
And that's why I always have to scrub little chunks of crap off them every brake job.

Thanks dude, You are the man!
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Old 04-30-2013, 12:35 PM   #13
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And that's why I always have to scrub little chunks of crap off them every brake job.

Thanks dude, You are the man!
Interesting. no problem good thing i memorized a lot of TIS info. i hope they bring it back online
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Old 04-30-2013, 01:53 PM   #14
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Check that the caliper to carrier mounting bolts are tight. If they weren't tightened, that can cause the clunk...
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Old 04-30-2013, 02:02 PM   #15
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yeah the clunk is definitely sway bar end links. I have the same thing. Confirmed by two different BMW mechanics lol
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Old 04-30-2013, 03:11 PM   #16
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yeah the clunk is definitely sway bar end links. I have the same thing. Confirmed by two different BMW mechanics lol
Where did you order the sway bar links from? Thanks!
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Old 04-30-2013, 03:12 PM   #17
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why do people continue to ask "where did you get such and such part from?" you can get any part anywhere. click on the vendor list
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Old 04-30-2013, 03:14 PM   #18
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why do people continue to ask "where did you get such and such part from?" you can get any part anywhere. click on the vendor list
Why do people not search the forum? is this the first time this clunk has been diagnosed as sway bar end links? Ignorance is bliss.
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Old 04-30-2013, 04:09 PM   #19
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why do people continue to ask "where did you get such and such part from?" you can get any part anywhere. click on the vendor list
While I am well aware of the vendor/sponsor list, I ask the question for a few reasons.
1) The buyer might be able to point me in the right direction as far as a GOOD price.
2) The buyer might or might not be happy with the vendor/sponsor experience thus influencing my decision.

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Why do people not search the forum? is this the first time this clunk has been diagnosed as sway bar end links? Ignorance is bliss.
Thanks for the valuable input. I guess since you've been a member from Jan. 2013, all these people who don't search just annoys you? FWIW, the search function was done and their were multiple threads, but I figured I would throw it out there and see if anyone has any recent information that might be pertinent to my situation.
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Old 04-30-2013, 04:11 PM   #20
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While I am well aware of the vendor/sponsor list, I ask the question for a few reasons.
1) The buyer might be able to point me in the right direction as far as a GOOD price.
2) The buyer might or might not be happy with the vendor/sponsor experience thus influencing my decision.


Thanks for the valuable input. I guess since you've been a member from Jan. 2013, all these people who don't search just annoys you? FWIW, the search function was done and their were multiple threads, but I figured I would throw it out there and see if anyone has any recent information that might be pertinent to my situation.
You could rephrase your question then because "where can i buy xx part" sure sounds like "where can i buy xx part."

bmaparts, oembimmerparts, getbmwparts, esctuning are all good places to start.

GL!
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