[Alpina 91]

Can anybody point me in the right direction to solve this problem ,
.When I accelerate hard I get a vibration similar to wheel spin.
I don’t get it from standstill only from 2nd To 3rd and 3rd To 4th .

Thanks in advance

[Chappers 71]

Could be propshaft coupling, bearing & or damper ring. That's where I'd look first.

Good luck

[rasa bmw]

as above,,could also be too much torque if you have had it remapped recently..but flex disc is main culprit then centre bearing etc

[nick46]

I've got a similar issue with mine at the moment. Get a annoying vibration at around 55-60mph, then its seems to fade and then come back at around 75-80mph. Thought it might've been a poorly balanced wheel or a wheel weight fallen off as I have had new front tyres recently. However the vibration is coming through the seat and not the steering wheel so I'm guessing it's not a wheel balance issue and more to do with the prop.
Got my mate looking at it on Tuesday so I'll report back then!

[rasa bmw]

Originally Posted by nick46

I've got a similar issue with mine at the moment. Get a annoying vibration at around 55-60mph, then its seems to fade and then come back at around 75-80mph. Thought it might've been a poorly balanced wheel or a wheel weight fallen off as I have had new front tyres recently. However the vibration is coming through the seat and not the steering wheel so I'm guessing it's not a wheel balance issue and more to do with the prop.
Got my mate looking at it on Tuesday so I'll report back then!

that deffo sounds like a binding caliper..or a calier thats ready to start fully binding on

[stampylove]

Originally Posted by rasa bmw

that deffo sounds like a binding caliper..or a calier thats ready to start fully binding on

+1 Same thing happened to me between 65 and 75, vibration in the drivers seat. Drove me nuts and took a while to find out it was the calliper sticking.

[nick46]

Well my mate had a look at my car last night and couldn't really find anything wrong. The only thing he thought was odd was that one of my resr wheels has no weights on at all and one or two of the other wheels don't have weights on either the inside or outside edge. So it looks like my vibration may just be a wheel balancing issue.
As soon as I get time I'll get them all balanced and report back.

[rasa bmw]

Originally Posted by nick46

Well my mate had a look at my car last night and couldn't really find anything wrong. The only thing he thought was odd was that one of my resr wheels has no weights on at all and one or two of the other wheels don't have weights on either the inside or outside edge. So it looks like my vibration may just be a wheel balancing issue.
As soon as I get time I'll get them all balanced and report back.

yeh,,they arebnot like the old weights,,they are now not lead and ust stick on,,so unless they clean the surface properly before sticking on,,they can come off quite easily.hope its this anyway

[nick46]

Well had all the wheels balanced which cost me bloody £40! And the vibration is still there. Going back to my mate at some point for further investigations.

[nick46]

Mate had another look tonight and can find absolutely nothing wrong. Since having the wheels balanced the vibration has improved but not gone completely. It might just be me as I doubt anyone else would notice it - my wife certainly hasn't but then I guess that's just women! Its just a little annoying as I know it's still there, even if it's only a tiny bit. I recon its something to do with the front tyres cos it just seems like a bit of a coincidence that it has come about since I had them replaced.
Oh well guess I can avoid it by either staying under 55 or by just going about 90 everywhere!

[rasa bmw]

Originally Posted by nick46

Mate had another look tonight and can find absolutely nothing wrong. Since having the wheels balanced the vibration has improved but not gone completely. It might just be me as I doubt anyone else would notice it - my wife certainly hasn't but then I guess that's just women! Its just a little annoying as I know it's still there, even if it's only a tiny bit. I recon its something to do with the front tyres cos it just seems like a bit of a coincidence that it has come about since I had them replaced.
Oh well guess I can avoid it by either staying under 55 or by just going about 90 everywhere!

anyone close to you who could loan you a couple of wheels to try..i have 4 wheels in my shed,,fronts have tyres(style 189) if you lived close to me you could have used them

[nick46]

Originally Posted by rasa bmw

anyone close to you who could loan you a couple of wheels to try..i have 4 wheels in my shed,,fronts have tyres(style 189) if you lived close to me you could have used them

That's a kind offer, but no, no one near me (that I know of) with spare wheels. Like I've said its really not that bad since having the wheels balanced and most people wouldn't even notice. It's just a little annoying more than anything because I know it's there. I guess as time passes if there is anything wrong it will get worse to the point where something will stand out. But for now as everything has been checked over and given the ok, I'm not to worried about it.

[austin.tillison]

Originally Posted by rasa bmw

that deffo sounds like a binding caliper..or a calier thats ready to start fully binding on

Originally Posted by stampylove

+1 Same thing happened to me between 65 and 75, vibration in the drivers seat. Drove me nuts and took a while to find out it was the calliper sticking.

how does one fix a sticking caliper?
I'm pretty sure my vibration is coming from a sticking caliper
My car is probably due for brakes too

[rasa bmw]

Originally Posted by austin.tillison

how does one fix a sticking caliper?
I'm pretty sure my vibration is coming from a sticking caliper
My car is probably due for brakes too

take caliper off and refurb,,but easiest way is to buy one from arparts4less,,then when new one is fitted,,you send the old one back for a refund,,around £100 when credited back..so not bad,,

[austin.tillison]

Originally Posted by rasa bmw

take caliper off and refurb,,but easiest way is to buy one from arparts4less,,then when new one is fitted,,you send the old one back for a refund,,around £100 when credited back..so not bad,,

okay, thanks

[Doily]

To check for sticking caliper - immediately after a few minutes of vibration feel the wheel hubs, discs and calipers to see if they are hot.