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E46 Convertible
The E46 vert forum. Talk about dropping your E46 top here.

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Old 07-06-2013, 04:06 PM   #21
Blueandwhite85
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Originally Posted by sakumaxp View Post
The verts didn't get an "upgraded sub frame" but since there is no top, the chassis lost a lot of its rigidity. So to make up for it they added reinforcements to compensate for not having a top, hence the heavier weight for the verts which comes from the reinforcements.


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Sounds like an "upgrade" to me.

Go home.
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Old 07-06-2013, 07:47 PM   #22
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Cracked subframe ( Horrible)

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Originally Posted by Blueandwhite85 View Post
Sounds like an "upgrade" to me.

Go home.
The sub frame itself is still the same

Go home, youre drunk.


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Old 07-06-2013, 08:04 PM   #23
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Cracked subframe ( Horrible)

That's not a rear subframe failure. That's a rear floor completely fell the fvck out. Even the worse rear end failures I've seen don't look like that.
I'm with this other. The accident def caused that.


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^^^ do you spend all your free time on two wheels?
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Old 07-06-2013, 08:13 PM   #24
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Re: Cracked subframe ( Horrible)

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Originally Posted by sakumaxp View Post
The sub frame itself is still the same

Go home, youre drunk
Stop trying to pretend to be smart, you're not helping and only making yourself look bad.

Members have adopted the term "sub frame" to mean the mounts in sheet metal that crack, not the metal frame that supports the diff. When people say "check the sub frame" they don't mean check the metal frame that supports the diff, they mean check the sheet metal around the mounts for the sub frame. It may be incorrect to say, yet we all know what is meant, so give it up.


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Old 07-06-2013, 08:20 PM   #25
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Well if you wanna get technical. It's a diff carrier that is mounted to the rear floor.
Not a subframe. Technically. There is no subframe.
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Old 07-06-2013, 08:22 PM   #26
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Quote:
Originally Posted by Snik View Post
Well if you wanna get technical. It's a diff carrier that is mounted to the rear floor.
Not a subframe. Technically. There is no subframe.
I think its just easier to say subframe rather than
Subframe unibody floor pan...etc... But u know what
We mean
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Old 07-06-2013, 09:50 PM   #27
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Re: Cracked subframe ( Horrible)

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Originally Posted by Snik View Post
Well if you wanna get technical. It's a diff carrier that is mounted to the rear floor.
Not a subframe. Technically. There is no subframe.


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Old 07-06-2013, 10:23 PM   #28
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Holy **** that is tore up. Please post progress photos.
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Old 07-06-2013, 10:53 PM   #29
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Originally Posted by taylor192 View Post
Let's not mix words.
- The actual sub frame (that the diff mounts to) is the same for coupe and vert.
- The body structure with the 4 mounts for the sub frame are different for the coupe and vert. This has been confirmed. This is what cracks around the 4 mounts. This is what the OP is replacing.

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The frame sheet metal that the subframe mounts to are the same on all E46 aside from the compact. Look up part no. 41117000246
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Old 07-07-2013, 02:41 AM   #30
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Re: Cracked subframe ( Horrible)

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Originally Posted by mkodama View Post
The frame sheet metal that the subframe mounts to are the same on all E46 aside from the compact. Look up part no. 41117000246
That's the superseded part number used in the 06 coupes and verts, as that was the year the coupe got the reinforced vert floor. The previous part numbers were different for the coupe and vert.

Thanks for coming out. This is all documented on M3F.

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Old 07-07-2013, 03:33 AM   #31
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That's the superseded part number used in the 06 coupes and verts, as that was the year the coupe got the reinforced vert floor. The previous part numbers were different for the coupe and vert.

Thanks for coming out. This is all documented on M3F.

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link?
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Old 07-07-2013, 03:51 AM   #32
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link?
Only way to confirm would be to check old versions of the ETK. I think I have a copy from 2004 somewhere... I guess I could install that and see

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Old 07-07-2013, 08:51 PM   #33
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Cracked subframe ( Horrible)

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Originally Posted by taylor192 View Post
Stop trying to pretend to be smart, you're not helping and only making yourself look bad.

Members have adopted the term "sub frame" to mean the mounts in sheet metal that crack, not the metal frame that supports the diff. When people say "check the sub frame" they don't mean check the metal frame that supports the diff, they mean check the sheet metal around the mounts for the sub frame. It may be incorrect to say, yet we all know what is meant, so give it up.


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Ok? Thanks for joining in? I'll give it up when you prove my statement incorrect.

Go home, you're drunk.


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Old 07-07-2013, 11:24 PM   #34
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Re: Cracked subframe ( Horrible)

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Originally Posted by sakumaxp View Post
Ok? Thanks for joining in? I'll give it up when you prove my statement incorrect.

Go home, you're drunk.
Hope you never need help with the convertible top. Being an ass is a sure way to not get the help you need.

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Old 07-07-2013, 11:57 PM   #35
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Hope you never need help with the convertible top. Being an ass is a sure way to not get the help you need.

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you came off a little harsh, by telling me "stop acting smart and im making myself look bad" you should reevaluate yourself first before you start calling people names.
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Old 07-08-2013, 12:17 AM   #36
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Re: Cracked subframe ( Horrible)

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Originally Posted by Mango View Post
For that to happen on both sides indicates it's probably not due to drifting into a curb. Of course that probably didn't help but this is a known mode of failure for subframe mounting areas on the E46, especially the M3 convertible. In fact, this extreme failure mode has only been seen on the M3 convertible to my knowledge. To say that verts aren't vulnerable to subframe mounting damage is ignorant.

I highly recommend any E46 owners, especially M3 convertible owners, to periodically check for popped spot welds in the wheel well area especially. Once one weld pops, the weld spots next to it tend to pop and it's a chain reaction after that. Then eventually that lower section separates from the unibody.

This is all documented
Is there a good way to check the subframe without lifting the car? I've got an M3 vert, and I was under the impression that subframe issues are much more rare because of the added rigidity.
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Old 07-08-2013, 01:16 AM   #37
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you came off a little harsh, by telling me "stop acting smart and im making myself look bad" you should reevaluate yourself first before you start calling people names.
+1
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Old 07-08-2013, 01:18 AM   #38
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Is there a good way to check the subframe without lifting the car? I've got an M3 vert, and I was under the impression that subframe issues are much more rare because of the added rigidity.
Unless you want to cut open your bodywork from above, no, you have to look at the subframe mounting points from under the car.
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Old 07-08-2013, 05:37 AM   #39
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Re: Cracked subframe ( Horrible)

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Originally Posted by sakumaxp View Post
you came off a little harsh, by telling me "stop acting smart and im making myself look bad" you should reevaluate yourself first before you start calling people names.
You should check who's written the stickies about the convertible and you'll realize the difference between being helpful and being a smart ass nit picking the definition of words.

It may be harsh, yet you made the bed you'll lay in. I won't be helping someone I have to argue terms with when everyone what knows what is being discussed.

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Old 07-08-2013, 07:31 AM   #40
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Is there a good way to check the subframe without lifting the car? I've got an M3 vert, and I was under the impression that subframe issues are much more rare because of the added rigidity.
Hopefully its not really bad...if it is u can check from the trunk if u remove everything and see how solid it is
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