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E36 traction control???

Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW 3 Series
Forum Discription: This forum will deal with any issues on the BMW 3 Series (E21, E30, E36, E46, E90, E91 & E92)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=25291
Printed Date: 08-May-2024 at 00:06


Topic: E36 traction control???
Posted By: Alan323i
Subject: E36 traction control???
Date Posted: 20-December-2005 at 12:45

I've got an N reg 323I coupe...

All of a sudden i don't seem to have any traction whatsoever! no i know the roads are a tad greasy and i should expect some sort of loss but it sort of feels like a had traction control before but no i've switched it off!

So does my car have non switchable traction control as standard?????? and can it just give up the ghost?

My tyres aren't the best in the world but they have never given me greif before it all just seems a bit instant :(




Replies:
Posted By: T.J.
Date Posted: 20-December-2005 at 13:21

The TC on a 3 series, if it had it fitted, is switchable by a button on the centre console, with matching yellow light in the dash between rev counter & speedo. 

On an N reg I don't think it came with it - twas 97 onwards I think, but I stand completely to be corrected. My 95 has no TC.

Just enjoy the slippiness,kick the tail out on roundabouts, and be wide everywhere else is my advice



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Mazda 6 MPS
S1 Elise 135 Sport
Alfa Romeo 159 Sportwagon
http://www.bmwcarclubireland.com/gallery/displayimage.php?pos=-3254">

Formerly E39 TDS, E36 M3, E36 328i, E34 525i, E34 518i


Posted By: kbannon
Date Posted: 20-December-2005 at 13:30
Even with ASC [TC] broken on my E39 I can't get the tail out unless I really try and push it. Its awful!

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Current: 2009 E60 520d "Sport" tractor
Previous: 1989 E30 320i SE
1997 E39 523i
2003 E39 525i Sport Individual


Posted By: scarface
Date Posted: 20-December-2005 at 14:19
I agree that over the past few weeks the roads have seemed a bit more greasy than usual.  Pulling out of junctions in a hurry is a bit of a nightmare. 

Originally posted by kbannon kbannon wrote:

Even with ASC [TC] broken on my E39 I can't get the tail out unless I really try and push it. Its awful!


Must be something about 3ers then, both mine have been a bit wayward in the tail department, I'd never turn my traction control off on a public road, it's too unpredictable. 




Posted By: Alan323i
Date Posted: 20-December-2005 at 15:00

Oh right :(

It's not even fun though tbh :( It really feels like i'm not in control of the thing! Were as before it felt so heavy and planted that only when you took the piss did it shift!



Posted By: kbannon
Date Posted: 20-December-2005 at 15:23
Originally posted by scarface scarface wrote:


Must be something about 3ers then, both mine have been a bit wayward in the tail department, I'd never turn my traction control off on a public road, it's too unpredictable. 



I had thought it was the 255 rear Good Year F1s holding it but on a recent (dry) track day there was little sideways movement from well worn tyres (non F1s)!


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Current: 2009 E60 520d "Sport" tractor
Previous: 1989 E30 320i SE
1997 E39 523i
2003 E39 525i Sport Individual


Posted By: scarface
Date Posted: 20-December-2005 at 16:02
I'm suspecting my tyres at the mo.  Dunlop SP Sport 9000s, the previous owner was obviously a cheapskate.  I can't get them anywhere near their recommended pressures without the car becoming dangerously twitchy.  My 328 was grippier on it's 205 R16s 


Posted By: sleeper
Date Posted: 21-December-2005 at 03:33
as a suggestion, check your rear suspension components - something may have broken or become disconnected effecting your geometry control. quite common after the roads have been salted...

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Posted By: T.J.
Date Posted: 21-December-2005 at 03:38

what sorta 3 do you have now, Scarface?

I'd never have called the 3 unpredictable; once grip becomes slip it is pretty controllable. And unless you're really provoking it with the throttle, it doesn't break into a drift / roll-oversteer unless you're doing dangerous speed on the public road. I've an LSD in mine which makes it more predictable in a sense (in that it slips earlier but is more throttle-controllable), but good razzes in a colleagues E36 323i on 16" showed it hangs on very well, with the inside rear spinning in most cases and it generally behaving itself.

the 3s do seem to be exceptionally sensitive to wheel alignment, partic at the rear. I know of one lad who had his 'correctly tracked' by someone with a great rep in IRL, but parked it in a wall when the rear literally decided it wasn't interested soon after he had it done. And having been in a car with him, he's not a lousy pilot or a taker of unnecessary risks, and always spends good money on tyres etc.. the setup just messed the rearend up.



-------------
Mazda 6 MPS
S1 Elise 135 Sport
Alfa Romeo 159 Sportwagon
http://www.bmwcarclubireland.com/gallery/displayimage.php?pos=-3254">

Formerly E39 TDS, E36 M3, E36 328i, E34 525i, E34 518i


Posted By: sleeper
Date Posted: 21-December-2005 at 03:48
very common with 'track' geometry settings TJ - it is easily possible to set the rear to such a degree as it gives little warning of a breakaway . mine is set in a more 'user-friendly' way - increased camber = less grip in the extreme but bags of warning when she's gonna go!

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Posted By: Alan323i
Date Posted: 21-December-2005 at 16:32

Right cheers for that guys :)

Going to get the suspension checked and the tracking etc..



Posted By: scarface
Date Posted: 21-December-2005 at 18:03
TJ: Both of mine have been E46s, 328 saloon, now a 330 coupe.  Both have been autos, which may make a difference. 

With the 330 I can't get near the recommended pressures (F:34psi R: 42psi) without things getting a bit worrying at times.  I'm currently running about F:30 R:32, which must be too low for low profiles.  I once tried 36psi on the rear I had the rear trying to break free coming off a roundabout, in the dry with loads of squeal, and I wasn't taking it faster than usual.  Because of the traction control it's never been THAT dangerous but it shouldn't be like that IMO. 

This is the wrong time of year to be judging how well your car grips though!

I hope there's nothing up with the geometry, I've been as careful as I can, and it stays much straighter then the 328 when you let go of the wheel. 

Plus it's still only got 34,000 miles on it, even I can't wear out suspension components in 7,000 miles 


Posted By: T.J.
Date Posted: 22-December-2005 at 03:46

I run 36Psi on the front and 34Psi on the rear at the mo, on 225/45 17". I haven't dented the rims (a depressingly easy task over here!) since I put them on 20,000 miles ago, and it strikes a reasonable grip/ride compromise. I've always ran around 36psi on low-pros without an issue.



-------------
Mazda 6 MPS
S1 Elise 135 Sport
Alfa Romeo 159 Sportwagon
http://www.bmwcarclubireland.com/gallery/displayimage.php?pos=-3254">

Formerly E39 TDS, E36 M3, E36 328i, E34 525i, E34 518i


Posted By: pma1ums
Date Posted: 22-December-2005 at 05:03
Originally posted by T.J. T.J. wrote:

Just enjoy the slippiness,kick the tail out on roundabouts, and be wide everywhere else is my advice

very true

i really do think that 3s are very well balanced in the way that you can feel a slide coming on and i seem to find them very easy to control

i allways turn my tc off ;the reason being is that i find it a more rewarding driving experiance

when we get the snow its allways better to turn the tc off because if you keep it on ;it just cuts out all power to the wheels and you just end up getting no were fast

just my 2 pennys worth



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its a dogs world out there


Posted By: scarface
Date Posted: 22-December-2005 at 05:07
Don't worry, we're catching you up.  Our roads are getting into a shocking state over here.  The problem is that so many roads now need ripping up and doing properly that it can't be done. 

That's strange, I always thought that you put more air in the rear than the front.  Mine are 225 40 18 on the front and 255 35 18 on the rear.  I will have to keep adjusting I think.  


Posted By: T.J.
Date Posted: 22-December-2005 at 05:40

I put a bit more into the front cos:

1. It improves the steering response a smidge

2. More weight over the front (I know BMW are supposedly 50:50 but I think it applies to 316i's, not 328/330s somehow)

3.the impact is always bigger on the front - by the time it gets to the rear there always feels like there is an element of absorption already done by the front suspension/tyre and subsequent body movement. there is some technical support for this that I read before, but it fell out of my head soon after I put it in!  Something to do with phasing. That's why there is less suspension travel in the rear too.

 



-------------
Mazda 6 MPS
S1 Elise 135 Sport
Alfa Romeo 159 Sportwagon
http://www.bmwcarclubireland.com/gallery/displayimage.php?pos=-3254">

Formerly E39 TDS, E36 M3, E36 328i, E34 525i, E34 518i


Posted By: sleeper
Date Posted: 22-December-2005 at 06:55

point 1. agreed- every car I have had I have run 1 psi under figures and definately makes a difference!

point 2. you'd be surprised - 316/8 are iron blocked - sixes are ally, not much difference in the balance, especially with the batter in the boot on sixes.

point 3. anything you say TJ...



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Posted By: T.J.
Date Posted: 22-December-2005 at 06:59

Re: point 3 ~  ok ok I'll do some digging to try support my notion!

it would be interesting (re: point 2) to get them on a weighbridge to suss weight distribution out, wouldn't it?



-------------
Mazda 6 MPS
S1 Elise 135 Sport
Alfa Romeo 159 Sportwagon
http://www.bmwcarclubireland.com/gallery/displayimage.php?pos=-3254">

Formerly E39 TDS, E36 M3, E36 328i, E34 525i, E34 518i


Posted By: sleeper
Date Posted: 22-December-2005 at 07:08

yeah, I've been onto a mate who owns the race team I used to work for as he has corner weight scales.

don't know anyone with a 318 though.... 



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Posted By: scarface
Date Posted: 26-December-2005 at 11:26
I reckon the alloy 6s are still heavier than the iron 4s as the front tyres look a lot flatter than the rears at the same pressure.   All I want is a bit less spin from the rears, I'm sure the fronts are OKish, I don't like light steering anyway. 

I won't be happy if I've broken something or knocked it out of alignment already!  I'm beginning to wonder if the E46 is sturdy enough for me


Posted By: Alan323i
Date Posted: 27-December-2005 at 09:55

Come to think of it i put all my preassures at 30 psi the last time i filled them up! Could be the problem but they were only 28 when i did it.

The book says somthing daft like 26/34!?!



Posted By: scarface
Date Posted: 28-December-2005 at 15:17
26 does sound daft.  Maybe try 28 all round, sounds a little low though.  In my experience a few psi can make a lot of difference.  

I'd check out what other people with your car/wheels run on.


Posted By: Alan323i
Date Posted: 29-December-2005 at 13:28
I've done 28 front and 36 rear and it's made a noticable difference but it is still very unstable :( Bushes might be shot all round??


Posted By: T.J.
Date Posted: 30-December-2005 at 06:01

In terms of suspension, if you soften the front relative to the rear, you get better turn-in and more propensity to oversteer. Stiffen the front relative to the rear, and more understeer is the result.

In my opinion, 36psi is more than enough for the rear - no matter what your set up, that pressure will make the rear end feel keen to slip rather than grip. 

when I bought the 328i the bushes were shot, and the car was lethal - the first night I had it I was going up a straight but very bumpy hill around 5,000rpm in 2nd and the rear stepped out so much I had to go half into the opposite lane to gather it up. I did all the bushes and it made a huge difference. The eibach lowering springs weren't quite right for me either, so I changed the whole setup to a Schnitzer rig. Now it drives like a WRX - tight but acceptable ride and great body control.

Anyway, going back on track, bushes mightn't be a bad place to start with alignment done properly afterward. Drop the pressure on the rear a smidge, and maybe further down the road 2 new tyres if you're still not happy. Anf keep us up to date with the tweaks and how they work out for you!



-------------
Mazda 6 MPS
S1 Elise 135 Sport
Alfa Romeo 159 Sportwagon
http://www.bmwcarclubireland.com/gallery/displayimage.php?pos=-3254">

Formerly E39 TDS, E36 M3, E36 328i, E34 525i, E34 518i


Posted By: Alan323i
Date Posted: 30-December-2005 at 15:01

Thanks for that mate!

I used to have a wrx before so you can tell why i'm being picky! LOL

It just feels dangerous and like the car weighs 800 kilo's were as before it felt like a tank but i could shift the rear if i ever wanted.

Bushes it is first then!



Posted By: T.J.
Date Posted: 30-December-2005 at 15:13

Sounds like a plan alright! the Scooby setup is a hard one to replicate - it just feels so right on the road with enough travel that back roads don't hold any fear, but well enough tied down. I'm pretty chuffed with the handling of mine now.

I fitted OEM BMW bushes all around, cos they worked out pretty cheap, and I wanted to see what they were like before I went to any other setup. I'm still running them now, though the front are a bit tired again after 25k and some trackdays, so I may fit poly bushes there in the new year. 



-------------
Mazda 6 MPS
S1 Elise 135 Sport
Alfa Romeo 159 Sportwagon
http://www.bmwcarclubireland.com/gallery/displayimage.php?pos=-3254">

Formerly E39 TDS, E36 M3, E36 328i, E34 525i, E34 518i


Posted By: Alan323i
Date Posted: 31-December-2005 at 14:02

Were did you get the OEM ones from mate BM?? Online?



Posted By: scarface
Date Posted: 03-January-2006 at 20:10
TJ, that's interesting if you say that bushes can be tired after that length of time.  Would you say it's worth telling dealers to shut up and just fit them?  One inspection on the 328 came back that they were on their way out, when I asked them to change them another mechanic said they weren't needed. 

Alan, I'm now running 30F 34R, and it seems much better behaved, even in the wet. 


Posted By: T.J.
Date Posted: 04-January-2006 at 03:31

@ Alan - I bought them off the local dealer.

@ Scarface - It's the front ones on the rear of the lower control arm. The design of them, and the direction the loads go through them, seems to speed up the process. They're not completely gone by any means, but they're on the slippery slope!



-------------
Mazda 6 MPS
S1 Elise 135 Sport
Alfa Romeo 159 Sportwagon
http://www.bmwcarclubireland.com/gallery/displayimage.php?pos=-3254">

Formerly E39 TDS, E36 M3, E36 328i, E34 525i, E34 518i


Posted By: David321
Date Posted: 04-January-2006 at 11:30

Hey guys.

The roads in Essex are lethal at the moment, irrespective of tyre pressures. I have noticed that my tyres (Continentals) lose a bucket load of grip when the air temperature drops below 5 degrees.

That's probably why sensible people on the continent have a set of winter tyres and also why they can deal with snow so much better...



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E36 M3 Evo - Techno Violet
Previous & current rides...


Posted By: Alan323i
Date Posted: 04-January-2006 at 16:07

Scarface that's exactly what i run them on now mate after the advise you gave me mate :)

Feels a lot better but being so busy in work i havn't had a chance to get the bushes checked out yet :(



Posted By: scarface
Date Posted: 05-January-2006 at 18:07
It's strange the difference it's made.  The traction light still flickers quite  a bit but I don't get it really kicking in and cutting engine power like it was.  It feels like it allows a bit of slide now before it kicks in.  I had to learn to trust it, but now it feels great.  (CRASH! )

I think I just had too much grip on the rear with the fatter tyres, and not enough on the front. 



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