One wheel very hot after driving / squeaky brakes ?? - BMW Forum - BimmerWerkz.com
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#1 (permalink) Old 04-24-2006, 07:22 AM
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Unhappy One wheel very hot after driving / squeaky brakes ??

Dunno what the hell this could be but after a 30 mins drive last night my front drivers side wheel was almost too hot to touch. The other 3 were stone cold.

I have noticed a squeaking noise coming from my car whilst driving (once every second when driving at around 10mph) but this is quite intermittant. I also have had some squeaking while braking, but can't tell where the noise is coming from as the car has to be moving for it to squeak.

My mechanic said my brakes were fine and had plenty left of the pads around 4 months ago. I can also see a good centimeter of pad now.

Does anyone know what this could be?

How do I know when my pads need replacing or if its something more serious?

Despite both the rim heating up and the squeaking noise, the car both drives and brakes in a straight line, which i would think eliminates any stuck brakes etc. Nothing was lit up either.

I'm going to pay my mechanic a visit on the weekend but wanted to know if any of you could give me help in the mean time.

thanks a lot if you can help

1995 E36 320i Coupe
19" Chrome Kaizer Spade II's
Ventura Lowering Springs
Sony 6 disk changer w/ Minidisc headunit
12" pioneer sub, sony 6x9's
600w 4 channel American pro Chrome amp

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#2 (permalink) Old 04-24-2006, 07:59 AM
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Sounds like a caliper is dragging. Try tapping it side to side to see if it frees up. If not, remove caliper & sparingly lube the mount.

Hope this helps

Kerry
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#3 (permalink) Old 04-25-2006, 07:23 AM
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Thanks for the reply.

I've just tried tapping it side to side but its still the same.

I recently sprayed it with a squirt of wd40 which may be the cause of the problem as i've found out this wasn't the best of things to do!

would 3-in-1 oil be any better if i just applied a spot here and there??

if not what lube should i use and how difficult is it to remove the caliper? My garage is unable to fit me in until late next week ; (

many thanks!

1995 E36 320i Coupe
19" Chrome Kaizer Spade II's
Ventura Lowering Springs
Sony 6 disk changer w/ Minidisc headunit
12" pioneer sub, sony 6x9's
600w 4 channel American pro Chrome amp

Pics of my car
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#4 (permalink) Old 04-25-2006, 08:01 AM
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If tapping side to side doesn't free it up, something is wrong. My recommendation would be to dismount the caliper & look for something that is bent or very rusty. If you're not comfortable taking the brakes apart, find a mechanic familiar with BMW brakes. The Bently manual has step by step directions.

Good Luck
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#5 (permalink) Old 04-25-2006, 08:23 AM
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going by memory and assuming you can jackup the car and remove the wheel this is how you remove the caliper

first there will be two caliper guide bolts underneath rubber caps, they are on the inside of the caliper facing the car wait what am i doing....hold on

here ya go, here's a really good step by step that'll show you how

http://www.pelicanparts.com/BMW/tech..._Big_Brake.htm

let me know if you have any problems removing it

2011 Mazda2
1990 Mazda Miata
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#6 (permalink) Old 04-25-2006, 08:51 AM
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Many thanks both. I've also found this link http://www.bimmerdiy.com/diy/e36brakesystem so I might have a go this weekend and see if i can see anything.

I might try a drop of 3 in 1 oil tonight though as I think that the wd40 may have dried up the parts (since is Water Displacement oil) and therefore when applying the brakes it might not be lubricated enough and therefore it sticks.

I jacked the car up last night and the wheels spins freely without any resistance, therefore leading me thinking its just an intermittant issue rather than the calipers stuck constantly.

1995 E36 320i Coupe
19" Chrome Kaizer Spade II's
Ventura Lowering Springs
Sony 6 disk changer w/ Minidisc headunit
12" pioneer sub, sony 6x9's
600w 4 channel American pro Chrome amp

Pics of my car
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#7 (permalink) Old 04-25-2006, 09:24 AM
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when you did your brakes did you lubricate the slide? It is very important to lubricate all points of contact or you risk a sticy caliper like you appear to have...at the dealer we use a lube paste (as recommended by BMW) called Bostik (you can buy a large bottle for little $ and it lasts forever even with as many brake jobs as I do) I would suggest taking your brakes apart and re-lubing with the proper lubricant (sprays and oils won't do the trick)

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#8 (permalink) Old 04-25-2006, 09:38 AM
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I haven't actually done my brakes recently since the pads look fine. I just sprayed the caliper with wd40 as I was getting a squeaking noise everytime the wheel turned.

What slide do you mean?

I plan on taking apart my brakes this weekend and lubing them. do you mean where the piston meets the pad?

1995 E36 320i Coupe
19" Chrome Kaizer Spade II's
Ventura Lowering Springs
Sony 6 disk changer w/ Minidisc headunit
12" pioneer sub, sony 6x9's
600w 4 channel American pro Chrome amp

Pics of my car
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#9 (permalink) Old 04-25-2006, 02:21 PM
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The style of caliper is called a floating caliper and it rides in a slide that is bolted in place....you should think twice about using WD40 on things since it attracts dirt...chances are you promoted build up and caused the caliper to get stuck in the slide...really you shouldn't use oils in general for the same reason. Take your brakes apart, clean the oil off with brake clean, and lube properly

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#10 (permalink) Old 04-26-2006, 04:06 AM
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^^ many many thanks!!

1995 E36 320i Coupe
19" Chrome Kaizer Spade II's
Ventura Lowering Springs
Sony 6 disk changer w/ Minidisc headunit
12" pioneer sub, sony 6x9's
600w 4 channel American pro Chrome amp

Pics of my car
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#11 (permalink) Old 04-26-2006, 04:27 PM
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ok,

I managed to remove my caliper (seemed very tight to get off) and checked my pads (see attached pictures).

After looking at pictures of new pads on the internet, i think they still have plenty left on them. Can anyone confirm this by the pics?

From my car's documentation, it looks like they were replaced around 10,000 miles ago.

Do the pads needs replacing or do you think its more of a caliper issue? I've got a feeling the piston might have seized up a bit. I've degreased it anyway and lubricated it with some copper based lubricant, but only time will tell if this has worked.


Sorry if i'm sounding a complete noob, but no-one has ever taught me about mechanics apart from this site! many thanks if you can help!
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1995 E36 320i Coupe
19" Chrome Kaizer Spade II's
Ventura Lowering Springs
Sony 6 disk changer w/ Minidisc headunit
12" pioneer sub, sony 6x9's
600w 4 channel American pro Chrome amp

Pics of my car
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