The M3cutters - UK BMW M3 Group Forum
 

Go Back   The M3cutters - UK BMW M3 Group Forum > M3 and M4 Talk > E46 M3 (2001-2006)



Reply
 
Thread Tools Display Modes
Old 21st March 2018, 05:38 PM   #21
TouringRob
Achieved official socks
 
TouringRob's Avatar
 
Join Date: May 2017
Posts: 1,339
Car: M3 Touring
Default

Quote:
Originally Posted by MWagon View Post
Nice one, did not know this about the wagons.
No worries, I've had two that have corroded under the battery I think if an old battery has vented/leaked it just gets left for the next 10yrs so eats paint away. On both occasions I justed used rust converted and hand painted the panel under the battery with no further issues.
TouringRob is offline   Reply With Quote
Sponsored links
Old 21st March 2018, 06:09 PM   #22
Chady
Rocking a new hat
 
Chady's Avatar
 
Join Date: Jul 2016
Location: Cheshire
Posts: 497
Car: csl
Colour Combo: Sg
Default

Just finished mine ,,Sand down as far as possible, rust remedy, zink primer,seam sealer bmw’s Own underseal, undercoat , stoneguard ,chosen colour finish, clear coat ,, waxoil in cavity... if mine comes back I’ll give up

Last edited by Chady; 22nd March 2018 at 07:07 AM.
Chady is offline   Reply With Quote
Old 21st March 2018, 10:29 PM   #23
m3inter
Achieved official socks
 
m3inter's Avatar
 
Join Date: Jan 2009
Location: Surrey
Posts: 1,028
Car: 2002 BMW M3 Coupe
Default

As others have said, rod bearings should be done first if you intend to do all 3 areas you've outlined. They can fail with far less warning than a head gasket and can be terminal for your engine.

The head gasket and Vanos work could be done at the same time which will be cheaper in the long run but will mean a bigger 2nd bill. ( but no 3rd bill at all)
m3inter is offline   Reply With Quote
Old 22nd March 2018, 12:12 AM   #24
AC427
Achieved official socks
 
AC427's Avatar
 
Join Date: Mar 2009
Posts: 4,534
Car: E46 M3 Convertible
Colour Combo: Estoril / Champagne
Default

Quote:
Originally Posted by klan8456 View Post
Seems every 3 track days or so, at least 3 times a year. Assume it was Castrol 10w-60 being used. I've changed it yet again just last week, to be sure.

Compression test last year was 160psi on all cylinders, so HG is my lowest concern of the 3.
Sounds good but that was a year ago and i guess the previous own did it.
AC427 is offline   Reply With Quote
Old 22nd March 2018, 03:54 PM   #25
svvg
Achieved official socks
 
svvg's Avatar
 
Join Date: Sep 2009
Location: London/Cambridge
Posts: 1,702
Car: E46 M3 SMG
Default

Slight hijack - but is the rod bearing issue the same issue which necessitated the conrod recall done on early 2001/2002 cars due to a poor batch of conrods form the supplier? Mine definitely had that recall - but not sure if this is a general wear issue regardless?

Many thanks!
svvg is offline   Reply With Quote
Old 22nd March 2018, 03:57 PM   #26
arinb12
Wearing official underwear
 
arinb12's Avatar
 
Join Date: Dec 2017
Posts: 260
Car: 03 E46 M3
Default

General wear issue at circa 100k miles, the recalled ones were a dodgy batch but that doesn't mean those shouldn't be changed if the car is nearing that mileage now. That is unless the recall was completed so late in life that the new bearings have limited mileage on them. Most were recalled and changed very early on in their life's though
arinb12 is offline   Reply With Quote
Old 22nd March 2018, 05:40 PM   #27
E46CoupeM3
Achieved official socks
 
E46CoupeM3's Avatar
 
Join Date: Oct 2012
Location: England
Posts: 14,918
Car: 2001 BMW M3
Colour Combo: Carbon Black
Default

Quote:
Originally Posted by arinb12 View Post
General wear issue at circa 100k miles, the recalled ones were a dodgy batch but that doesn't mean those shouldn't be changed if the car is nearing that mileage now. That is unless the recall was completed so late in life that the new bearings have limited mileage on them. Most were recalled and changed very early on in their life's though
yeah but if your car has only done 50k on the replacements 100k on the odometer is irrelevant

(2001 car, 2006 recall done)

Last edited by E46CoupeM3; 22nd March 2018 at 05:49 PM.
E46CoupeM3 is offline   Reply With Quote
Old 22nd March 2018, 05:50 PM   #28
svvg
Achieved official socks
 
svvg's Avatar
 
Join Date: Sep 2009
Location: London/Cambridge
Posts: 1,702
Car: E46 M3 SMG
Default

Ok thanks. Think mine was done very early on indeed. On 85k at the mo....
svvg is offline   Reply With Quote
Old 22nd March 2018, 05:51 PM   #29
E46CoupeM3
Achieved official socks
 
E46CoupeM3's Avatar
 
Join Date: Oct 2012
Location: England
Posts: 14,918
Car: 2001 BMW M3
Colour Combo: Carbon Black
Default

Quote:
Originally Posted by svvg View Post
Ok thanks. Think mine was done very early on indeed. On 85k at the mo....
The BMW system shows it with the distance in KM
Worth checking if possible before spending
E46CoupeM3 is offline   Reply With Quote
Old 22nd March 2018, 08:23 PM   #30
klan8456
Rocking a new hat
 
klan8456's Avatar
 
Join Date: Jan 2018
Posts: 549
Car: 2003 BMW M3
Default

https://youtu.be/ls_dQyZcboU

Watch the last 30 seconds. Threw a rod, car written off, nearly the driver too. Seems a good enough reason to me to change the bearings!
klan8456 is offline   Reply With Quote
Old 22nd March 2018, 08:27 PM   #31
E46CoupeM3
Achieved official socks
 
E46CoupeM3's Avatar
 
Join Date: Oct 2012
Location: England
Posts: 14,918
Car: 2001 BMW M3
Colour Combo: Carbon Black
Default

Quote:
Originally Posted by klan8456 View Post
https://youtu.be/ls_dQyZcboU

Watch the last 30 seconds. Threw a rod, car written off, nearly the driver too. Seems a good enough reason to me to change the bearings!
SMG, no clutch to step on
E46CoupeM3 is offline   Reply With Quote
Old 22nd March 2018, 08:45 PM   #32
TouringRob
Achieved official socks
 
TouringRob's Avatar
 
Join Date: May 2017
Posts: 1,339
Car: M3 Touring
Default

Quote:
Originally Posted by E46CoupeM3 View Post
SMG, no clutch to step on
Yes, this has to be (for me anyway) the single biggest disadvantage of SMG in the smg vs manual debate - if the car was a manual he probably would not have ended up backward in the wall.

When I was 16 I had a honda cub 50. I used to fill it with a 50/50 mix of nitromethane (RC fuel) and petrol, once the thing bloody seized on me and had no hand clutch - fortunately the centrifugal donkey disengaged after a few moments of sliding around and probably saved my hide - I am amazed that the M3 doesn't drop into neutral when the rear wheels are at zero speed and the front at X. Quite scary actually.
TouringRob is offline   Reply With Quote
Old 22nd March 2018, 09:10 PM   #33
Alex5000
Wearing official robes
 
Alex5000's Avatar
 
Join Date: Nov 2013
Location: Chelmsford
Posts: 356
Car: 2005 BMW M3
Colour Combo: Carbon Black / Kiwi
Default

Quote:
Originally Posted by klan8456 View Post
https://youtu.be/ls_dQyZcboU

Watch the last 30 seconds. Threw a rod, car written off, nearly the driver too. Seems a good enough reason to me to change the bearings!
That is terrifying. Not much you can do in that situation...
Alex5000 is offline   Reply With Quote
Old 23rd March 2018, 10:40 AM   #34
TouringRob
Achieved official socks
 
TouringRob's Avatar
 
Join Date: May 2017
Posts: 1,339
Car: M3 Touring
Default

Quote:
Originally Posted by Alex5000 View Post
That is terrifying. Not much you can do in that situation...
Yes, I've reflected on that video quite a bit and really don't like how the SMG system didn't pull the clutch etc.

This is great ammo for the manual is best club and a fantastic incentive for everyone to think hard about sorting rod bearings and/or oil pump etc before its too late.

Sliding backwards into a barrier on track is very different to sliding backward into a motorway barrier!
TouringRob is offline   Reply With Quote
Old 23rd March 2018, 11:11 AM   #35
arinb12
Wearing official underwear
 
arinb12's Avatar
 
Join Date: Dec 2017
Posts: 260
Car: 03 E46 M3
Default

Quote:
Originally Posted by E46CoupeM3 View Post
yeah but if your car has only done 50k on the replacements 100k on the odometer is irrelevant

(2001 car, 2006 recall done)
But that's what I said

Quote:
That is unless the recall was completed so late in life that the new bearings have limited mileage on them. Most were recalled and changed very early on in their life's though
arinb12 is offline   Reply With Quote
Old 23rd March 2018, 11:47 AM   #36
zeta4
Achieved official socks
 
zeta4's Avatar
 
Join Date: May 2015
Location: oxford
Posts: 1,523
Car: 2003 E46 M3, E90 330d
Colour Combo: Silver Grey/Black
Default

Just had the rod bearings done with car at 110K. Oil analysis had showed some copper and lead but nothing excessive.
Anyway OCD got the better of me. Removed shells look fine with no copper showing. Upper shells are slightly more
worn than the lower ones as you would expect.
zeta4 is offline   Reply With Quote
Old 23rd March 2018, 12:46 PM   #37
JamesHirst
Achieved official socks
 
JamesHirst's Avatar
 
Join Date: Apr 2013
Location: Huddersfield
Posts: 2,646
Car: VW Boring, Mk2 Golf G60
Default

i did mine at 115k for the same reason mate, mine were ok ish bit of copper in places and would have probably lasted another 15k, my oil pump had wear so i did that at the same time
JamesHirst is offline   Reply With Quote
Reply

Bookmarks


Thread Tools
Display Modes



All times are GMT. The time now is 03:18 AM.


This website uses cookies. By continuing to use the site you are agreeing to our use of cookies. To find out more about the cookies this website uses, click here.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright © 2007 - 2018 M3cutters. All Rights Reserved.