[E46] Subframe Cracks: Where to get it diagnosed and repaired

Discussion in 'Faults, Fixes and Solutions' started by Smooth, May 11, 2011.

  1. 15 Oct 2016 at 9:55 AM #81
    cracked46

    cracked46 A mere Chipper

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    Rivets along a seam are fine and would be really strong.i think if you start drilling on already weak and distorted panel, you will just icrease the chance of cracking due to the panel loosing its rigidity. Welding or replacement is the only thing I'm considering personally.
    My boot floor has some hair line cracks inside some popped spot weld as well as hairline cracking underneath. What's worrying is that it took a good deal of cleaning with brake cleaner before I could really see the length of the cracks.
     
  2. 9 Feb 2017 at 11:16 PM #82
    E3 PSB

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    I called Rybrook Worcester to ask if they did a resin injection to strengthen but they categorically told me that there was no recall or requirement for this on my 04 vert, I'm guessing they don't check the floor pan/sub frame on inspection services? always take mine there, out of warranty now so I'm intrigued to see how this pans out?
     
  3. 24 Feb 2017 at 1:30 PM #83
    Snowdog

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    Nope there was no UK recall or proactive advice from BMW at all, whereas in the USA they couldn't do more to contact and help owners. Personally I felt that to be poor form. I also believe that of the E46 community, the only owners who have really understood this are M guys, and those that are enthusiasts have pushed for resolution. With that in mind I also believe that the wider E46 community is in for an unpleasant surprise at some point. Sure, the power levels are less, but I'd wager that over time, there will be an increase in non M cars succumbing to this issue.
     
  4. 20 Mar 2017 at 8:18 PM #84
    7DT

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    Coming from someone who's about to spend a lot of cash on getting mine fixed, i'd just bite the bullet and go and find an indy, and just get it plated. Prevention is better (and a ****load cheaper) than cure.
     
  5. 25 May 2017 at 8:39 AM #85
    Shezbo

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    Most new cars use bonding (glue in lay mans terms) to join body panels....much much stronger than welding and reduced rust problems.

    Ali cars are all bonded and riveted...
     
  6. 25 May 2017 at 11:00 AM #86
    tony66

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    really? hope you dont fly or travel a lot lol:D,a lot of highly stressed aircraft components are bonded together,where parts break its usually the metal itself tearing before any bonded surface gives way..
     
  7. 30 Jun 2017 at 12:54 PM #87
    7DT

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    Well, may as well post here as I have had my horror show fixed now :D

    I got mine looked at and fixed by Gosling Racing (GRID) in Cambridgeshire. In all honesty, I wouldn't take my M anywhere else.

    I had the entire panel replaced, plates welded on (redish level of coverage, for reference) and a stealth (vince) bar fitted. Also suspension refresh, and threw in a service II whilst half the car was off.

    Superb job, and Shaun really knows his stuff. He's also one of those guys who'll take on challenging work that others will shy away from. He also takes a lot of pride in his work as well. Highly recommended.
     
  8. 13 Aug 2017 at 11:32 PM #88
    flintsigs

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    Rough idea on price mate ?
     
  9. 13 Jul 2018 at 7:57 AM #89
    trebor

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    Cracked. Up

    My subframe is cracked diagnosed by redish motorsport. It's too late for a repair apparently the whole boot floor needs replacing. I also took it to BWM canterbury who confirmed the RACP was indeed cracked oh and I need a new set of wiper blades, everything else was A1 condition HAHA

    Rob
     
  10. 14 Jul 2018 at 8:14 AM #90
    Gaz1234

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    So is it a write off?
     
  11. 14 Jul 2018 at 8:31 AM #91
    trebor

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    .

    I guess so if you were an a insurance under writer. It's the fastest hunk of junk in the galaxy.

    Rob
     
  12. 14 Jul 2018 at 8:39 AM #92
    Gaz1234

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    Oh dear. This is why I’m thinking of getting rid of mine. Don’t want to spend the £ to repair mine
     
  13. 14 Jul 2018 at 8:44 AM #93
    trebor

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    Yeah I know what you mean. Never get the money back. It's a bloody shame such an interesting and engaging car as well.
     
  14. 15 Jul 2018 at 1:52 AM #94
    cracked46

    cracked46 A mere Chipper

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    Just a quick update. It’s now been 18 months and no sign of any new damage developing! I had my floor repaired at redish and wow are they thorough. I had the extra support bar fitted which tied in to both rear floor panels and had the underside rear completely, Cleaned prepped and painted. I also new suspension, discs and pads, poly bushes fitted and lots of other small components.
    When you strip these damn things down it’s shocking to see just how far this damage travels. The cracking in mine travelled in to the inner wheel arches and under the rear seats!

    So if you have an e46 m3 and you want to keep it long term then spend the money and do it properly. It’s not worth going to Indy’s that don’t have the required knowledge to do them right.
    On my car no type or resin injection would have been enough to do this safely and in fact would have hampered any later attempts to do any welding as the structural foam is most probably flammable.

    I have just recently parted with my e46 as I just can’t be bothered to keep spending money on the stupid thing! I have had a few other m cars as well and have found them all to be money pits that just keep going wrong!

    My advice is to not buy any e46 without an inspection by Redish or one of the other experts, leave the less experienced companies alone as you’ll regret it!
    Values seem to be rising so they are worth doing and nice examples are starting to fetch decent money.

    I’m having a break from m cars for a while.

    I’m in a cls55 amg now and I’ll never buy another used e46,e92 or e60m5 as they do not compare in my opinion. A simple remap on the 5.5 bi turbo and you 650bhp Andy 900ftlbs with no other mods. So if you want a daily that quite literally will happily sit on the tail of a 458 or a lambo for a fraction of the cost but a Mercedes amg!
    No brainer really.

    When I return to m cars it’ll be a f10 m5 or newer.
    So for now I’m out.
     
  15. 15 Jul 2018 at 7:15 AM #95
    E46CoupeM3

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    Define "too late" with pictures
     
  16. 15 Jul 2018 at 8:49 AM #96
    trebor

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    Well, I can only go by the advice given and the information available and Redish motor services do seem to provide buckets of both. So its hard not to use them as the main provider.

    [​IMG]
     
  17. 15 Jul 2018 at 9:34 AM #97
    E46CoupeM3

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    If you read old threads on the net you will find references to folk that used to plate E46 refusing to do some because they were too cracked. Now that the larger plates are "the standard" cars that were previously turned away may now be repaired.

    No one ever had to use the small plates of course, it's car repair 101 that you cut a plate to exceed the size of the damaged area.

    Hence my point being what is too cracked. Is it just a case of bigger plates, more plates / welding or more time.
     
  18. 15 Jul 2018 at 9:53 AM #98
    trebor

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    Don't know mate, the job is far to big for me so I have to ask for help. Redish have the largest plates available to me at least and they say it's outside of there enforcement area so, that's that.

    Rob
     
  19. 15 Jul 2018 at 10:13 AM #99
    E46CoupeM3

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    If you read my other post people used to say that with the small plates.
    Then they made bigger plates.

    What's stopping some one making templates with serial box and where required making more or bigger plates?

    Probably nothing.

    However, if you cannot do it yourself you are at the mercy of others.
     
  20. 15 Jul 2018 at 10:25 AM #100
    trebor

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    This does sound like common sense but if I had any of that I wouldn't of bought a BMW e46 m3 in the first place as I was aware of this issue before i stupidly bought one. D'0h.
     

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