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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Sat, Aug-17-2019, 02:09:13 AM   #21
scaley
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Default Re: PSA: check your front diff bolt

I checked my front diff bolt tonight and the good news is that it wasn't loose. However I *think* my issue which I was talking about earlier (not being able to get a socket on the bolt straight to properly tighten) is because of my AKG subframe bushings. I believe the bottom lip of the AKG bushing is taller in height compared to the OEM bushing therefore pushing the front subframe bushing bracket down which is enough to give me problems when it comes to getting a socket on that bolt. This pic might help illustrate my issue.

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Old Sat, Aug-17-2019, 02:18:40 AM   #22
eacmen
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Default Re: PSA: check your front diff bolt

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Originally Posted by mrgizmo04 View Post
33177840535 about $20

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Yeah it's an expensive bolt but if you drove the car hard like me thinking it was just M clunk then changing it it was necessary. Just thankful that the threads weren't too far gone.
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Old Sat, Aug-17-2019, 04:30:35 AM   #23
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Default Re: PSA: check your front diff bolt

Quote:
Originally Posted by scaley View Post
I checked my front diff bolt tonight and the good news is that it wasn't loose. However I *think* my issue which I was talking about earlier (not being able to get a socket on the bolt straight to properly tighten) is because of my AKG subframe bushings. I believe the bottom lip of the AKG bushing is taller in height compared to the OEM bushing therefore pushing the front subframe bushing bracket down which is enough to give me problems when it comes to getting a socket on that bolt. This pic might help illustrate my issue.

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I have a front AKG and don't have an issue getting the 21mm on. Try a different 21mm, maybe a thinner wall.

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Old Sun, Aug-25-2019, 12:52:19 AM   #24
///M3_Michael
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Default Re: PSA: check your front diff bolt

Thanks for the PSA! My front bolt was tight AF but I changed the rear bolts to new design and locktighted. My clunk is greatly reduced!

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Old Mon, Oct-14-2019, 01:55:03 AM   #25
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Default Re: PSA: check your front diff bolt

2 month update. Bolt backed out again so i replace it with a new bolt and loctitied this time. Hopefully it stays in this time. Very tricky getting that bolt to thread in after taking the old one out. Be careful not to strip or crossthread the bolt!
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Discussing PSA: check your front diff bolt in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)