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-   -   e46 subframe issues (http://forum.e46fanatics.com/showthread.php?t=943240)

sihatch 09-07-2012 06:51 AM

e46 subframe issues
 
I am going to be replacing my bushings slowly in the next year (front and back) including all subframe bushings. I have not seen/found a new updated informative thread about the infamamous subframe cracks/tears/failure. I want to know how common this is and around how much each person has been charged to have it fixed. I dont have a welder/lift/space to do the subframe fix myself if I end up needing it. Please dont reply unless you have experience with these issues. Threads in the past didnt necessarily have people with this issue but people for lack of words promoting the issue as if they did have the issue. Any help is greatly appreciated!

Thanks!

ChrisRedmon 09-07-2012 07:26 AM

Its not common. Its prevalent. period. There is almost a 100% chance you will have to deal with it if has not yet already been attended to. Ive heard people have paid 800-2000. Replace all bushings while everything is apart. Much easier.

sihatch 09-07-2012 07:40 AM

Thanks Chris. Yes thats my plan is to drop my subframe replace all four bushigns while its down and then do detailed inspection on the surfaces. I know I can inspect with the subframe on but If its just small cracks (which im hoping and as it seems) I can see how extensive it is with the subframe off. Im hoping its not bad and I can just have it reinforced with the kits that are on the market and take car of that issue....

In for more details from others.

sihatch 09-07-2012 07:41 AM

Quote:

Originally Posted by ChrisRedmon (Post 14711953)
Its not common. Its prevalent. period. There is almost a 100% chance you will have to deal with it if has not yet already been attended to. Ive heard people have paid 800-2000. Replace all bushings while everything is apart. Much easier.

And also Chris, i noticed in another thread you were saying you had small cracks. How are you going to deal with the situation?

cposk 09-07-2012 08:06 AM

Not sure how common it is with the M3's, but you should just have the plates welded in if everything is apart for bushing replacement. The added labor is dropping the gas tank and doing the cleaning/welding. I'd say 5-6 hours max if the mechanic knows what he is doing.

You will be pretty upset if you get all the bushing done and end up having a subframe mount failure later on...

MercForHire 09-07-2012 08:24 AM

For e46 M3s it mostly happen on the first year 2001 model. I saw a lot of those ones crack over the forums.
Although you can crack any unreinforced e46 m3 subframe by being a drifting king or burnout monkey

ChrisRedmon 09-07-2012 08:27 AM

I plan on doing a complete overhaul. Drop the sub frame. Weld it up. New bushings for the subframe/diff and tranny. Thats when tax returns come around though. It will only get worse though so im trying to drive like a normal person.....which is hard :(

MercForHire 09-07-2012 08:31 AM

Install this whole kit and drift that motherf*cker with impunity

http://www.turnermotorsport.com/imag...reinf_2_lg.jpg


http://www.turnermotorsport.com/p-13...t-package.aspx

ChrisRedmon 09-07-2012 09:05 AM

^ So much yes is embedded in that statement.

sihatch 09-07-2012 12:42 PM

Yes I plan to install it regardless. However just wanted to get an idea of what people pay and real expereience from people that have gotten it done or have the issue. Ive only really talked to people that know about it but cant speak from real experience.

mEaty30 10-02-2012 04:21 PM

Quote:

Originally Posted by sihatch (Post 14711915)
I want to know how common this is and around how much each person has been charged to have it fixed. Any help is greatly appreciated!

Thanks!

I think the OP had asked what was the ball park figure on parts and labor. I could use the info as I will be doing this as well. I just don't want to be ripped by a dealer.

Super Sheep 10-03-2012 11:53 PM

What about a 2005 E46 Coupe?

Obioban 10-04-2012 09:26 AM

Quote:

Originally Posted by MercForHire (Post 14712035)
For e46 M3s it mostly happen on the first year 2001 model. I saw a lot of those ones crack over the forums.
Although you can crack any unreinforced e46 m3 subframe by being a drifting king or burnout monkey

Quote:

Originally Posted by Super Sheep (Post 14786292)
What about a 2005 E46 Coupe?

2001-2005 have identical rear floors. For 2006 they changed to the vert rear floor, which is stronger... but can still be ripped.

Best course of action is to structural foam it and epoxy on plates BEFORE you have an issue. Cheaper and stronger.

Once you've had an issue you have to weld it, no more epoxy. Once you foam it, you can't weld it.

Mango 10-04-2012 09:30 AM

And by the way to anyone considering dropping the rear subframe on any E46, there's much more than the "four subframe bushings" back there. Much more. 17 more, in fact. (including the rear trailing arms) so call it 15 more. The odd number obviously comes from the rear diff (3 bushings)

Akovski 10-04-2012 12:52 PM

i got a quote for my currently cracked subframe to be welded and reinforced for $400 but that guy is awesome and never charges anyone out the roof. Try to find your self a small shop thats a bmw fanatic like my local guy.

Glaede 10-04-2012 01:09 PM

I just picked up my car today actually after reinforcement. My mechanic fixed a big ass hole and then welded the TMS reinforcement kit in and also changed four bushings in the subframe, changed the guido, brakelines, output flange seal and reset my service indicator. I paid 8000,- dkr which is around $1389,66 US dollars in labor. Remember I'm located in Denmark and everything is expensive here, so i think i got a good price..


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