RE: BMW M3 (E46): PH Carpool

RE: BMW M3 (E46): PH Carpool

Author
Discussion

BenGB

119 posts

131 months

Monday 4th April 2016
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gizlaroc said:
I loved my E46 M3s, and they ride so much better on the 18s. I bought a set for the track and ended up using them all the time.

I got mine finished in anthracite....

Lovely - looks just like mine!

rtz62

Original Poster:

3,393 posts

157 months

Monday 4th April 2016
quotequote all
Leins said:
Krikkit said:
Are BMW still fixing the rear subframes, or has that time ended now?

Lovely cars.
10 years goodwill, so only the very late cars still covered. There are a few companies out there doing preventative work though, plating the likely stress area (either welded or bonded in place) and/or injecting the whole area with a foam resin like BMW do in their repair

Watch out for leaky self-dimming interior mirrors too, a manufacturing fault - again another cheap preventive solution worth doing IMO
Last time I looked specialists were charging around £1400 + vat to repair, but that included drilling the end of the cracks to stop them spreading, welding the cracks, welding in new purpose-made reinforcements, sealing and painting etc.
I'd shop around but also check on forums to see who is recommended as I'm sure cheapest isn't always best.

Limpet

6,360 posts

163 months

Monday 4th April 2016
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BenGB said:
It can happen on any e46 of any age and power - it seems to be luck of the draw, although lots of racing starts won't help. Prices I've been quoted range from £800 up to around £2200 inc VAT. Some places make up the plates themselves, some use the Redish Motorsport kit. Damage can range from small cracks to the boot floor pretty much dropping out, but it tends to be caught before it gets that serious.
Yes I think some effort had been made on this particular car to hide the problem with filler and gaffa tape yikes so I suspect most don't get this bad. It just seems from the chap's explanation of the problem that it's an inherent design/manufacturing issue caused by weld failures and the resulting flexing of the panels.

Can anything less drastic and costly be done to an unaffected car to pre-empt this, and ensure it doesn't occur?

Leins

9,509 posts

150 months

Monday 4th April 2016
quotequote all
rtz62 said:
Leins said:
Krikkit said:
Are BMW still fixing the rear subframes, or has that time ended now?

Lovely cars.
10 years goodwill, so only the very late cars still covered. There are a few companies out there doing preventative work though, plating the likely stress area (either welded or bonded in place) and/or injecting the whole area with a foam resin like BMW do in their repair

Watch out for leaky self-dimming interior mirrors too, a manufacturing fault - again another cheap preventive solution worth doing IMO
Last time I looked specialists were charging around £1400 + vat to repair, but that included drilling the end of the cracks to stop them spreading, welding the cracks, welding in new purpose-made reinforcements, sealing and painting etc.
I'd shop around but also check on forums to see who is recommended as I'm sure cheapest isn't always best.
FWIW, I used MProve near Warrington to do it as a preventative measure (no cracks beforehand, plates bonded in, resin injection afterwards) and found them excellent to deal with. When last inspected, two years later by a specialist who knows the issue well, everything was still looking perfect

s m

23,309 posts

205 months

Monday 4th April 2016
quotequote all
BenGB said:
Limpet said:
The axle carrier panel and boot floor cracking issue is a worry. Seems the factory welds, and panels are woefully inadequate eek

https://www.youtube.com/watch?v=BMptH7FMOw4

This is shocking. Are they all a ticking timebomb in this respect?

I could look after the oily bits myself, and I have successfully done simple MIG repairs to MOT standard, but these kind of repairs would be well outside my skill level. This must be many thousands of pounds worth of work.

Edited by Limpet on Monday 4th April 13:44
It can happen on any e46 of any age and power - it seems to be luck of the draw, although lots of racing starts won't help. Prices I've been quoted range from £800 up to around £2200 inc VAT. Some places make up the plates themselves, some use the Redish Motorsport kit. Damage can range from small cracks to the boot floor pretty much dropping out, but it tends to be caught before it gets that serious.
Apart from the Compact as the rear axle carrier panel is different

fatboy b

9,504 posts

218 months

Monday 4th April 2016
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I do miss my E46 M3 - but a house purchase forced it's sale back in 2005. Mine was dogged with rattle-a-plenty, and had a lot of warrantly/recall work done in the year I had it - crank bearings (recall); parcel shelf; heater controls; speakers; centre console all for rattles. My two XFs I've had have had far superior build quality, so I'll probably head back to the petrol world with another Jag this year.

BenGB

119 posts

131 months

Monday 4th April 2016
quotequote all
Limpet said:
Yes I think some effort had been made on this particular car to hide the problem with filler and gaffa tape yikes so I suspect most don't get this bad. It just seems from the chap's explanation of the problem that it's an inherent design/manufacturing issue caused by weld failures and the resulting flexing of the panels.

Can anything less drastic and costly be done to an unaffected car to pre-empt this, and ensure it doesn't occur?
You can buy a resin injection kit which involves squirting an epoxy type gunk into the gap into the boot floor which then cures solid to provide reinforcement and to spread the load over a wider area.

I'm taking mine up to Parkside Autos in Worksop to have the work done - I've been recommended to use them and they have been very helpful on the phone. Neil at Allgears just down the road is doing some work on the gearbox at the same time, but that's another story!

BenGB

119 posts

131 months

Monday 4th April 2016
quotequote all
s m said:
Apart from the Compact as the rear axle carrier panel is different
Good point - I stand corrected.
I believe the e36 had similar issues to the e46, so it seems that BMW didn't learn.

Limpet

6,360 posts

163 months

Monday 4th April 2016
quotequote all
BenGB said:
You can buy a resin injection kit which involves squirting an epoxy type gunk into the gap into the boot floor which then cures solid to provide reinforcement and to spread the load over a wider area.

I'm taking mine up to Parkside Autos in Worksop to have the work done - I've been recommended to use them and they have been very helpful on the phone. Neil at Allgears just down the road is doing some work on the gearbox at the same time, but that's another story!
thumbup hope all goes well.

rallye666

39 posts

218 months

Monday 4th April 2016
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Hmmm I've got 10k set aside for an s2000 but this has got me intrigued!

Had an 02 s2000 before and miss it terribly but have just let my m135i go and think another s2k will feel a bit anemic.

Although it looks like m3 maintainance will be be significantly more expensive and there's serious problems that can occur.

AshBurrows

2,552 posts

164 months

Monday 4th April 2016
quotequote all
Dynotorque reinforced my boot floor for a reasonable price smile
Love my M3. Has cost me a damn fortune so far. As making it 'better' is quite addictive.

Mine:


BenGB

119 posts

131 months

Monday 4th April 2016
quotequote all
Limpet said:
BenGB said:
You can buy a resin injection kit which involves squirting an epoxy type gunk into the gap into the boot floor which then cures solid to provide reinforcement and to spread the load over a wider area.

I'm taking mine up to Parkside Autos in Worksop to have the work done - I've been recommended to use them and they have been very helpful on the phone. Neil at Allgears just down the road is doing some work on the gearbox at the same time, but that's another story!
thumbup hope all goes well.
Cheers! I hope the happy feeling on the journey home will offset the bruising to the wallet smile

Leins

9,509 posts

150 months

Monday 4th April 2016
quotequote all
rallye666 said:
Although it looks like m3 maintainance will be be significantly more expensive and there's serious problems that can occur.
VANOS issues can be pricey to rectify too at circa £2.5k for new from BMW, including gears (although there are again companies who will refurb the existing one rather than replace with new OE parts). I also decided to swap the conrod bolts, oil pump & shells on mine when approaching 60k miles, although that was only for peace of mind

I would also advise to get a compression and leak-down test performed on any prospective purchase if at all possible




Probably worth pointing out that, even though I generally don't bother with extended warranties, I am a little risk averse

Edited by Leins on Monday 4th April 15:54

HannsG

3,060 posts

136 months

Monday 4th April 2016
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Here is mine

Silver Grey with Imola Red leather and Manual gear stick.



I have spent a lot of money bringing it back up to a very good cosmetic and mechanical standard. It is my daily driver (apologies for the dirty exterior).

I am finding it extremely hard to decide what to replace it with. Will I ever sell it? God knows...

It's such an amazing piece of engineering. Everyday is an enjoyable experience.

But maintenance can be eye watering.

Captainawesome said:
I had 2. One with an evolve carbon box and one with a supercharger bolted on.

The one with the evolve box is the one car I genuinely miss. I absolutely loved my old M3. Now driving an S5 and while the V8 is lovely I miss the s54. I believe by the end of the year I will have swapped back to an M3.

Enjoy her.
How was the evolve box? Did you have the map also?

Is the noise worth it mate?


Edited by HannsG on Monday 4th April 16:01

Limpet

6,360 posts

163 months

Monday 4th April 2016
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Timeless design. Still looks fantastic.

Blackbird425

1,933 posts

107 months

Monday 4th April 2016
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Why blank reg plates out in pictures? I presume to mitigate the risk of cloning, but wouldn't it get more exposure just being driven for a couple of hours?

bigvanfan

378 posts

134 months

Monday 4th April 2016
quotequote all
AshBurrows said:
Dynotorque reinforced my boot floor for a reasonable price smile
Love my M3. Has cost me a damn fortune so far. As making it 'better' is quite addictive.

Mine:

Brilliant photograph, car looks really planted as well

gizlaroc

17,251 posts

226 months

Monday 4th April 2016
quotequote all
Blackbird425 said:
Why blank reg plates out in pictures? I presume to mitigate the risk of cloning, but wouldn't it get more exposure just being driven for a couple of hours?
I always said that, but my car was cloned a couple of months back.

Got charged going over the Dartford crossing, police didn't want to know, DVLA said put something in writing and the will look at it in 12-16 weeks, and in the end I just said 'fk it'. Presumed as it was going southbound it would probably be in a ferry by now anyway.
Then got a bill from a compound asking for £3500 in tow fees and storage and had 7 days to pay.

Police again didn't want to know, neither the DVLA.
I did a bit of detective work and got then to stop sending me bills.

I guess it is easier for someone to find a Red M3 on a google image search than it is to drive round looking for one?

sjj84

2,390 posts

221 months

Monday 4th April 2016
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Loved mine, didn't even cost that much to run. SMG gearbox was the best part of it, I miss that.

SidewaysSi

10,742 posts

236 months

Monday 4th April 2016
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I often think about getting an M3 to replace my E36 328 coupe but I am not sure if I would just enjoy modifying my current car instead. Faster rack, springs, dampers etc. Would it be the more enjoyable road car rather than a 100k+ mile standard M3?