Clutch Slur

[shimmy]

Did an experiment this week.

On Tuesday mine was slurring like someone after 30 pints on the S5 full throttle (no lift) shortshifts at around 4,000 RPM. It had been like this for a while.... so....

For the last few days I've driven just the same (still S5 etc) EXCEPT I've lifted slightly on the shifts, so that I don't get any slurrrrrrrrr.

I go out today and decide to try the old full throttle no lift changes again and guess what - no slurrrr whatsoever. Insta-changes & sharp as a knife! Won't slurrrr even in the slightest.

It's 'learned' to be perfect again.

Welcome to the comedy world of the CSL SMG :banghead:

:hahaha:

Ok, my slur is also back so i will try the same thing next week. I am off south and west for 3 days with work and play and will drive a day with slur flat on changes, then a day with lift and last day flat changes again and report back!

[Bounce]

My slur is back aswell,im gonna try lifting for a while[not shirt] to see if it helps.:bigcry:

[Magsy]

I have a slow M3 not a CSL but I have developed this problem too so I thought I'd chip in.

Car has 30k, 54 plate, nothing wrong. Drove 3000 miles inc 'ring and it was whacking me really hard, perfect engagement of clutch. Went up Stelvio, tons of passes, flat out on the a'bahn; my clutch was good

I got BMW DIS on my laptop and one night back in Novemeber I hit the 'Reset Clutch Curves' option. It asked me to start the car, so I fired it up, felt it pulsing the clutch to find the bite point and it was done.

Well I wish I hadn't done that now because from then till now it slur's! I've reset it twice since, done a full gearbox teach in, basically all the options.

There is no point to the story really except that it just goes to confirm there is some issue in the software that just doesn't learn the correct way to release the clutch.

Hard driving for a few hundred miles helps but its is always bad on a cold morning and never fails to slip at 4-6k full throttle.

I know my clutch was fine and just hitting a button caused this issue, fecking mad with myself :bigcry: (I have the BMW work instructions too, so I'm almost certain I did everything correctly but I might try taking it to someone...)

[s.mac]

Ive just had all the updates done to stop the hesitation in gear change and found anti slip kicks in as soon as I boot it even when changing to 2nd and 3rd :banghead: I haven't done enough miles or driven it like it should be to see if it sorts its self out

[shimmy]

my clutch is being changed by BMW as we speak (foc) :smokin:

[s.mac]

let us know if it was worn out

[shimmy]

let us know if it was worn out

22k hard miles - ill let you know

[mpower!]

I have a slow M3 not a CSL but I have developed this problem too so I thought I'd chip in.

Car has 30k, 54 plate, nothing wrong. Drove 3000 miles inc 'ring and it was whacking me really hard, perfect engagement of clutch. Went up Stelvio, tons of passes, flat out on the a'bahn; my clutch was good

I got BMW DIS on my laptop and one night back in Novemeber I hit the 'Reset Clutch Curves' option. It asked me to start the car, so I fired it up, felt it pulsing the clutch to find the bite point and it was done.

Well I wish I hadn't done that now because from then till now it slur's! I've reset it twice since, done a full gearbox teach in, basically all the options.

There is no point to the story really except that it just goes to confirm there is some issue in the software that just doesn't learn the correct way to release the clutch.

Hard driving for a few hundred miles helps but its is always bad on a cold morning and never fails to slip at 4-6k full throttle.

I know my clutch was fine and just hitting a button caused this issue, fecking mad with myself :bigcry: (I have the BMW work instructions too, so I'm almost certain I did everything correctly but I might try taking it to someone...)

that is weird mate mine has exactly the same problem started about a week ago exact same symptons?

my car is a 2003 m3 with 31,000 miles on it!

did you get it sorted?

[mpower!]

afternoon,

i have a standard e46 m3 and im having the same problems as you guys with the clutch slur,

Ive been down bmw and they have quoted me £1140 for a clutch flywheel and the smg software update.

My car has only covered 30,000 miles is it really going to need a new clutch? ive had it since 20,000 and it never did this till about 120 miles ago when i first used launch control?

ive got a appointment with a bmw technician on monday, but hes just gunna tell me i need a new clutch as thats what hes paid toi say.lol

has anyone got any ideas on what to do?

[shimmy]

get a new clutch :beer:

could alwasy shop around for prices before they persuade you to spend £500 investigating it and then get tied to them.

before you go get 3 prices, dealers and non dealers - dont forget most of the price is labour so they can do deals

[mpower!]

get a new clutch :beer:

could alwasy shop around for prices before they persuade you to spend £500 investigating it and then get tied to them.

before you go get 3 prices, dealers and non dealers - dont forget most of the price is labour so they can do deals

can you not just get the clutch point redone? is it a possibility?

i read on here that you guys just go for a thrash about and that seems to sort it i might try that so far every time ive done that it seems like its just about to pack up!lol
any other ideas?

[shimmy]

getting the clutch retaught takes about 1/2 hour and can get it feeling like new

BUT imho it does not always sort it permantly and often if for soem reason the compensator is not working correctly the clutch problem wil return. My first clutch was slipping on or off for 10k miles even though i tried to sort it with the reprogramming - but it always came back

[mpower!]

getting the clutch retaught takes about 1/2 hour and can get it feeling like new

BUT imho it does not always sort it permantly and often if for soem reason the compensator is not working correctly the clutch problem wil return. My first clutch was slipping on or off for 10k miles even though i tried to sort it with the reprogramming - but it always came back

when the re taught the clutch do they do it electronically or is it a clutch out jobby mate?

[shimmy]

just laptop plugged into the car under the steering wheel and iirc engine running :thumbs:

[The Gorilla]

Hi,

I was informed that 5/6 hard Launch Control
Starts, would just about eat a new SMG clutch?

Can anybody confirm or dispel this.

As a 30,000 mile SMG clutch doing a hard
launch control, is I would have thought
asking for trouble.

If you drive really hard, you can eat a
355 F1 clutch in about 2/3k miles and
a 360 F1 clutch in about 5/6k miles.

I think the 355 has a update/upgrade which
improves it slightly.

Thats without launch control etc.

Yes, learnt the hard way.

Regards,

The Gorilla.