Coupe - Cannot remove rear wheel - unusual disk wear
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- Joined: Wed 14 May, 2008 22:12
- Posts: 9
Coupe - Cannot remove rear wheel - unusual disk wear
Sounds daft this I know but I need to get one of the rear wheels off as I'm not happy about the brake wear, (it seems only part of the disk is being used, maybe something embedded in the pad?) Anyway undid all the wheel bolts yesterday but the wheel is very firmly stuck on, I'm no stranger at working on cars as I prepare race cars but this seemed to me to be locked on in some way not just stuck on the centre hub, don't want to whack it too hard (as it's still under warranty). Checking the handbook that mentions "special accessories" from your BMW dealer for changing wheels, what's that all about....
If someone can confirm for me there is nothing special going on here and it's just stuck on the hub then I'd be grateful for the confidence to try a little harder....
If someone can confirm for me there is nothing special going on here and it's just stuck on the hub then I'd be grateful for the confidence to try a little harder....
Try harder, I usually sit on the floor and kick with both feet
Gazza
"Understeer is when you hit the wall with the front of the car, oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and torque is how far you take the wall with you"
Z3 S54 M roadster , BMW Z1, BMW M3 CSL, Z4M Coupe
"Understeer is when you hit the wall with the front of the car, oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and torque is how far you take the wall with you"
Z3 S54 M roadster , BMW Z1, BMW M3 CSL, Z4M Coupe
If the brake has been binding the heat could have caused it to get stuck on. Get out your biggest "persuader".
Use the Search button before posting newbie questions about hard tops and fitting kits, footwell speaker amps, water in the boot, hood maintainance and those horrific angel eyes. We get like 10 threads a week on the same subject, it's obvious that you haven't searched.
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- Joined: Wed 14 May, 2008 22:12
- Posts: 9
thanks guys, that confirms there's no other locking mechanism, I have seen systems that have a locking pin into the wheel centre hub. S here comes the extra large rubber mallet
and I won't be driving it on two studs, not even an inch !
As for the brake wear, I think something is embedded in the pad, I'm only getting wear in centre of the disk and there's a very light scraping noise when breaking gently and it's quiet outside.
Checked with BMW dealer and it's not covered under warranty
and I won't be driving it on two studs, not even an inch !
As for the brake wear, I think something is embedded in the pad, I'm only getting wear in centre of the disk and there's a very light scraping noise when breaking gently and it's quiet outside.
Checked with BMW dealer and it's not covered under warranty
- PhoenixCoupe
- Joined: Wed 02 May, 2007 00:46
- Posts: 739
- Location: Mars
You should try spinners then. My other car was even supplied with a rubber mallet in the toolkit. The tyre place asked me to take 'em off and put 'em back on.Haggispeed wrote:S here comes the extra large rubber mallet
Don't forget to use a little copper grease on 'em once you get 'em off, then you won't have to hit it so hard next time.
Cheers R.
Arctic Silver '99 Z3 1.9 & Black '59 Frogeye 1275cc
- PhoenixCoupe
- Joined: Wed 02 May, 2007 00:46
- Posts: 739
- Location: Mars
Wheel mates are thin disks that you put in between the wheel and the hub, and as it is not metal, it ensures that the wheels do not make contact and cease.
I paid £25 for mine including shipping from the US.
http://www.autogeek.net/kwwm.html
I paid £25 for mine including shipping from the US.
http://www.autogeek.net/kwwm.html
ThanksPhoenixcoupe wrote: Spinners are the big wingnuts that used to feature on wheels.
I read it in the context of an accessory rather than realsing RobertT's vintage car associated reference - it is Monday!
PVR wrote:Wheel mates are thin disks that you put in between the wheel and the hub, and as it is not metal, it ensures that the wheels do not make contact and cease http://www.autogeek.net/kwwm.html
Thanks again - kind of like paper copper grease then
- PhoenixCoupe
- Joined: Wed 02 May, 2007 00:46
- Posts: 739
- Location: Mars
Well I did post this link up a while ago.
Not sure that the wheelarches have the clearance for hummer wheels, but madder things have been done - there is currently a discussion about starting a drag racing group on the AH forum - one guy has a V8 100 and another a V8 frogeye.
Cheers R.
Not sure that the wheelarches have the clearance for hummer wheels, but madder things have been done - there is currently a discussion about starting a drag racing group on the AH forum - one guy has a V8 100 and another a V8 frogeye.
Cheers R.
Arctic Silver '99 Z3 1.9 & Black '59 Frogeye 1275cc
A thin smear of Copperslip will do the same thing and save some money, too!PVR wrote:Wheel mates are thin disks that you put in between the wheel and the hub, and as it is not metal, it ensures that the wheels do not make contact and cease.
I paid £25 for mine including shipping from the US.
http://www.autogeek.net/kwwm.html
Skoda Octavia vRS TSi DSG on Tour at Rocamadour
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- Joined: Fri 19 Jun, 2009 10:27
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- Location: Daglan, France
Heat
Back to the problem chaps - he can't get the wheel OFF!
It's common on neglected cars such as BMWs with not spare, and the simple answer is to heat the wheel bu slowly pouring a kettle or two of boiling water over the centre of the wheel, after wrapping it in a towel to retain the hot water.
After the second kettleful it will usually come off without difficulty. Then clean the hub spigot and the wheel centre, before coating them lightly with Copa-Slipor similar.
All you have to do then is to repeat the treatment on the other wheels!
PS: The spelling for a brake is DISC! We haven't become full Americans yet . . .
It's common on neglected cars such as BMWs with not spare, and the simple answer is to heat the wheel bu slowly pouring a kettle or two of boiling water over the centre of the wheel, after wrapping it in a towel to retain the hot water.
After the second kettleful it will usually come off without difficulty. Then clean the hub spigot and the wheel centre, before coating them lightly with Copa-Slipor similar.
All you have to do then is to repeat the treatment on the other wheels!
PS: The spelling for a brake is DISC! We haven't become full Americans yet . . .
The OP has probably got the wheel off now, it was back in September
Gazza
"Understeer is when you hit the wall with the front of the car, oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and torque is how far you take the wall with you"
Z3 S54 M roadster , BMW Z1, BMW M3 CSL, Z4M Coupe
"Understeer is when you hit the wall with the front of the car, oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and torque is how far you take the wall with you"
Z3 S54 M roadster , BMW Z1, BMW M3 CSL, Z4M Coupe
Double post
Last edited by Gazza on Fri 12 Mar, 2010 16:17, edited 1 time in total.
Gazza
"Understeer is when you hit the wall with the front of the car, oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and torque is how far you take the wall with you"
Z3 S54 M roadster , BMW Z1, BMW M3 CSL, Z4M Coupe
"Understeer is when you hit the wall with the front of the car, oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and torque is how far you take the wall with you"
Z3 S54 M roadster , BMW Z1, BMW M3 CSL, Z4M Coupe
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- Joined: Fri 19 Jun, 2009 10:27
- Posts: 2094
- Location: Daglan, France
Slow
Yes, a very slow day - I've been going around our B&Q equivalents, and the local builders merchant, trying to get a load of plumbing bits tigether. Les Francais do not restock before they run out of stock, so it's a matter of seeing who has whatever you want!
I don't often look at the Z4 Forums, but just could not resist a replay, however late. This chap seems to be blaming his unfortunate ofspring for having to sell his car, and BMW Finance for simply keeping totheeir part of the deal he entered into of his own will!
The number of businessmen and reps I met who whined about having to pay additional tax for their free car every couple of years always amazed me - how did they think we ordinary folk managed?
Still, these people do at least provide us with a good pool of slightly used BMWs we can buy at a good discount frm the new price!
I don't often look at the Z4 Forums, but just could not resist a replay, however late. This chap seems to be blaming his unfortunate ofspring for having to sell his car, and BMW Finance for simply keeping totheeir part of the deal he entered into of his own will!
The number of businessmen and reps I met who whined about having to pay additional tax for their free car every couple of years always amazed me - how did they think we ordinary folk managed?
Still, these people do at least provide us with a good pool of slightly used BMWs we can buy at a good discount frm the new price!
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- Joined: Wed 14 May, 2008 22:12
- Posts: 9
Well yes I did get the wheel off, with a large rubber mallet !!. A very common problem according to my local tyre fitter ( a proper fitter not a tyre monkey, I trust them to fit the tyres to my race car !)
So cleaned and dealt with now.
However the original issue that I wanted to get the wheel off for continues, that is uneven wear on the pads and disks, and it has now spread to one of the fronts. No foreign bodies in the pads.
I wouldn't say the car gets negleted at all, it is kept outside and it didn't get used in all that snow in January (alhough it may have been entertaining....) it doesn't get used everyday but two or three times a week. It's just had it's first service and the mech said I'm probably not hard enough on the brakes....
So cleaned and dealt with now.
However the original issue that I wanted to get the wheel off for continues, that is uneven wear on the pads and disks, and it has now spread to one of the fronts. No foreign bodies in the pads.
I wouldn't say the car gets negleted at all, it is kept outside and it didn't get used in all that snow in January (alhough it may have been entertaining....) it doesn't get used everyday but two or three times a week. It's just had it's first service and the mech said I'm probably not hard enough on the brakes....
That's what I've heard too. Once it starts, it won't get better as the corroded part of the disc wears the pads faster than the smooth part.Haggispeed wrote:mech said I'm probably not hard enough on the brakes....
If the discs have picked up coating of corrosion since the last journey, I always try to ensure that they're properly clean by the end of the journey with a few moderately hard stops.
Paul
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- Joined: Wed 14 May, 2008 22:12
- Posts: 9
There is a post by SiWilson regarding bedding in pads and discs. I know yours aren't new but the same process will help
I did a search for Si's post and came up with these two suggestions
Read this first http://www.stoptech.com/tech_info/wp_wa ... disk.shtml
Then do this http://zeckhausen.com/bedding_in_brakes.htm
I did a search for Si's post and came up with these two suggestions
Read this first http://www.stoptech.com/tech_info/wp_wa ... disk.shtml
Then do this http://zeckhausen.com/bedding_in_brakes.htm
Gazza
"Understeer is when you hit the wall with the front of the car, oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and torque is how far you take the wall with you"
Z3 S54 M roadster , BMW Z1, BMW M3 CSL, Z4M Coupe
"Understeer is when you hit the wall with the front of the car, oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and torque is how far you take the wall with you"
Z3 S54 M roadster , BMW Z1, BMW M3 CSL, Z4M Coupe
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- Joined: Fri 19 Jun, 2009 10:27
- Posts: 2094
- Location: Daglan, France
Neglect
Lots of owners spend lots of money and time polishing their cars, but very few - particualrly owners of recent cars - ever think about taking wheels off in order to grease the mounting spigots and attachment bolts. It is therefore inevitable that sooner or later they find they cannot remove the wheels. I would call that the result of neglect!
Of course, their excuse - if they ever thought about it - would probably be that if BMW in their corporate wisdom do not grease such items, who are they to do so? Of course, they may even believe in the BMW M Mobility Kit - and probably Santa Claus too.
They may even belong to the group who make a virtue out of their own ignorance, but can solve any problem by use of a credit card and a mobile phone . . .
I know - I'm old-fashioned, but I prefer to change my own wheels and get going again, rather than wait at the side of the road for the AA etc to arrive.
Of course, their excuse - if they ever thought about it - would probably be that if BMW in their corporate wisdom do not grease such items, who are they to do so? Of course, they may even believe in the BMW M Mobility Kit - and probably Santa Claus too.
They may even belong to the group who make a virtue out of their own ignorance, but can solve any problem by use of a credit card and a mobile phone . . .
I know - I'm old-fashioned, but I prefer to change my own wheels and get going again, rather than wait at the side of the road for the AA etc to arrive.
I had a similar problem with one on the front's on mine the other day. Long story but, brake pedal went to the floor !! No accident fortunately, massive brake wear on one side of the front brakes, nothing on the other. The intense heat that was being generated on the problem side made it difficut get the wheel off. Like you, I have competition experience so a "very" firm boot got the wheel off ! The problem was a brake pad that was stuck on the one side of the car, causing massive wear on the oppisite side. Having talked to a BMW expert, he tells me that up to about 1999 BMW service used to take the pads out on inspection, clean them up and put them back. They don't do it anymore. Steam cleaners and power washers can strip any copperslip or other grease that has been put on to the locating lugs on the pads and sticking can occurr. Mine only needed new pads. The disk "run out" was fine. Whilst I had calipers off I reconditioned them and put in aeroquip hoses and fitted "redstuff". It now stops properly !!
Pete.
Pete.