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      08-12-2014, 02:50 AM   #1
Sparky68
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Never ending tracking / alignment issues

As some of you are aware I have been having ongoing problems with the handling of my car resulting in 4 wheel alignments so far this year

So far I have replaced
Wheels
Springs [Apex]
Shocks [Koni]
Rear sub frame bushes [Whiteline]

but, it still loses all its geometry as soon as I accelerate hard. The back end squats down [ seems to be more on one side ] and then the geo is all out again. Looking at replacing the rest of the bushes but need help if anyone knows part numbers ?

That's not my car but hoping they are all pretty much the same suspension wise ?
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      08-12-2014, 03:07 AM   #2
Needbmwpartzz
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Car ever been in accident?
I would get the car thoroughly inspected by a competent mechanic you trust before throwing anymore parts or money at it.
What sort of tracking alignment issues have you had,or what is it doing that bothers you?
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      08-12-2014, 03:20 AM   #3
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you have changed all the bits that have pretty much 0 influence* on the cars suspension geometry. you need to be changing all the rubber bushings at the back.

there are 10 rubber bushings there, on each side, that you've not replaced. these things are not meant to be lifetime, after about 80k they will be getting pretty ropey.




*compared to the rubber bushings on all the suspension links
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      08-12-2014, 03:22 AM   #4
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Car has not had any accident damage. Basically each time it gets geo done it loses the settings as described. Bloke who set it last time specialises in alignment etc and suggested replacing the bushes on camber arms etc .
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      08-12-2014, 03:25 AM   #5
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Quote:
Originally Posted by Icekube View Post
you have changed all the bits that have pretty much 0 influence* on the cars suspension geometry. you need to be changing all the rubber bushings at the back.

there are 10 rubber bushings there, on each side, that you've not replaced. these things are not meant to be lifetime, after about 80k they will be getting pretty ropey.




*compared to the rubber bushings on all the suspension links
Will see if i can get all the part numbers and order them.
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      08-12-2014, 03:55 AM   #6
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you could have a look at one of the threads on hear about M3 parts, most of the parts there can be replaced with upgraded bits from the M3, the "M3 Suspension" thread also had all the part numbers you need
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      08-12-2014, 04:08 AM   #7
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Ever heard of Lemforder Specialists? There's a guy that owns a garage in west london, off uxbridge road...sorry I forgot the name as I've been working abroad for a while.. but looking at your pic and set up, may be a good decision to find a specialist. After all, we all love RWD BMW's due to their near perfect 50:50 WD....dam saved my life more then 50 times drifting!

Good luck

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      08-12-2014, 04:33 AM   #8
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Will have a look at the M3 bits, just been to BMW Milton Keynes who suggested :

B33.32.6.777.980 Wishbones 123.20 each
B33.32.6.792.553 Ball joint 22.21 each
B33.32.6.763.092 Mounting 11.75 each

All prices +vat

They said that they are the bits they usually replace. Upper wishbone comes complete and you cant buy bushes separate apparently.
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      08-12-2014, 04:39 AM   #9
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Let's start from the beginning Mark.

1) Have you had any bushes replaced on the rear end?
2) How bad does the alignment go out on the rear end and which setting is affected more? (I know they're interlinked and as toe changes so does camber and vice versa but which is worse?)
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      08-12-2014, 04:40 AM   #10
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Quote:
Originally Posted by Sparky68 View Post
Will have a look at the M3 bits, just been to BMW Milton Keynes who suggested :

B33.32.6.777.980 Wishbones 123.20 each
B33.32.6.792.553 Ball joint 22.21 each
B33.32.6.763.092 Mounting 11.75 each

All prices +vat

They said that they are the bits they usually replace. Upper wishbone comes complete and you cant buy bushes separate apparently.
Forgot BMW for now, all those parts are available much cheaper and same quality from ECP etc or Amazon for the m3 bits.
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      08-12-2014, 04:42 AM   #11
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Hi mate, [ i know i'm a bloody pain ]

Not had chance to yet so gathering as much info as I can so I can replace all that is needed and then get geo done again. The only thing that was replaced were the sub frame bushes.

As for which is affected more, I think it is the toe as it ends up crabbing although saying that, i'm so confused by the whole thing these days it could be anything!
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      08-12-2014, 04:57 AM   #12
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Quote:
Originally Posted by Sparky68 View Post
Hi mate, [ i know i'm a bloody pain ]

Not had chance to yet so gathering as much info as I can so I can replace all that is needed and then get geo done again. The only thing that was replaced were the sub frame bushes.

As for which is affected more, I think it is the toe as it ends up crabbing although saying that, i'm so confused by the whole thing these days it could be anything!
Its okay mate don't worry.

I recommend replacing the majority if not all of the bushes and realign from there.

On your rear end here are two types of bushes (actually one is a balljoint but ignore for now). One type is enclosed in the rear arms and one type is housed in the hub/subframe.

The arms on the non-m cars are much more flimsy than the solid aluminium m3 ones so that's a massive improvement right there. So change two of them and the bushes in the hub/subframe.

That just leaves the camber arm which is a different size on non-m3 and m3 cars. Either buy a brand new one or an aftermarket adjustable one depending on budget.


Mark it sounds soo stupid but has anyone been over the rear end to check all the bolts are tight?
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      08-12-2014, 04:59 AM   #13
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BTW I'll make you up a list of recommended parts if you give me a few hours.
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      08-12-2014, 05:02 AM   #14
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Quote:
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BTW I'll make you up a list of recommended parts if you give me a few hours.
Thanks mate that will be a massive help.
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      08-12-2014, 05:04 AM   #15
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Quote:
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Mark it sounds soo stupid but has anyone been over the rear end to check all the bolts are tight?
Last time was when the rear sub frame bushes were fitted, nobody other than the guys at JPS Alignment have been near it mate.
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      08-12-2014, 06:48 AM   #16
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Quote:
Originally Posted by Icekube View Post



Using the pic posted earlier:

First of all lower camber arm (one the spring sits on)
(3) - Outer Lower balljoint - http://www.ebay.co.uk/itm/BMW-E81-E8...item5663fca343
Very important IMO, seems to be one that wears out quick - 2 required

(where number 9 is) - Inner low bush - http://www.ebay.co.uk/itm/BMW-3-Seri...item3f3a6205bd
It is the subframe side for the part above - 2 required


(2) and what sits on the inner side of (11) - Lower bush, same one inner and outer - http://www.ebay.co.uk/itm/BMW-E90-E9...item5afec9cca0
This is the the trailing arm (thin metal arm with loads of holes in it in the first pic of the tread) - 4 required as it is the same inner and outer
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      08-12-2014, 06:56 AM   #17
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Onto the rear arms:

Toe arms -

Either standard (2 required): http://www.ebay.co.uk/itm/Lemforder-...item4d2084a8dd

Or adjustable aftermarket (comes as a pair): http://www.ebay.co.uk/itm/BMW-3-SERI...item1c33dc89b2

The other two upper camber ones-

M3 arms: bargain if they are for all 4 http://www.e90post.com/forums/showth...t=m3+rear+arms
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      08-12-2014, 07:02 AM   #18
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Oh and just to add there are other brands of rear adjustable toe arms available so don't just buy the ones I've linked to as there might be better ones out there.
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      08-12-2014, 07:29 AM   #19
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Cheers mate, appreciate you taking the time to help again. Inner lower bush [9] they only have one in stock. Will see if i can find another seller.
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      08-12-2014, 08:23 AM   #20
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Quote:
Originally Posted by Sparky68 View Post
Cheers mate, appreciate you taking the time to help again. Inner lower bush [9] they only have one in stock. Will see if i can find another seller.
He's got loads mate:

http://stores.ebay.co.uk/The-Parts-G...sid=1115405480
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      08-12-2014, 08:47 AM   #21
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Gd luck mate! You have Idnan handling your corner. Hope these bits sort it!
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      08-12-2014, 09:33 AM   #22
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Yeh he is a bloody diamond.

Ordered most of the bits , some i will need to get from BMW
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