R50/R53 :: Hatch Talk (2002-2006) Cooper (R50) and Cooper S (R53) hatchback discussion.

R50/53 r53 CLUNKING ISSUE/BRAKES SQUEAL

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Old Apr 9, 2012 | 05:14 PM
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r53 CLUNKING ISSUE/BRAKES SQUEAL

Ok NAM,
the recent threads I have started have been a great success, Thank you everyone for your inputs on how to fix the trunk creaks and warm welcomes for just joining the forums.

Now, there are two issues I'd like to tackle in resolving
1. Brake squeal - is there any sort of spray I need to apply in order to make it stop. It only seems to happen when I stop very slowly, i.e coming to a light, stop sign etc.

2. "CLUNKS" from the right passenger area when accelerating from a stop and over some bumps.

I have been searching the forums and can't seem to have found any-solutions. May someone please give me their input on these situations
 
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Old Apr 10, 2012 | 02:59 AM
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The clunk could be the motor mounts. They are easy enough to check with the hood open you will see big motion in the engine when moving the car in either forward or reverse.
 
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Old Apr 10, 2012 | 03:11 AM
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There is a spray. It will require removing the calipers and pads, and cleaning the back side of pads before application. I used it on my last job (NAPA brand), and it still squeals at low speeds, as you described, although not badly, and infrequent.

I'm with HRM. That clunk could be many things, but these cars are notorious for wasting motor mounts. I've replaced all of mine, including trans mount. Even though your car is low mileage, age seems to be a killer.
 
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Old Apr 11, 2012 | 05:37 PM
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Sounds sound like a motor mount. See the silver canister in the picture? That is the upper motor mount. Go out to your car and check to see if there is any black residue below it (as shown in the picture) or any oil. I can't remember if you have the same version of the motor mount in the picture but it will be in the same spot regardless.


 
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Old Apr 11, 2012 | 07:51 PM
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Originally Posted by JohnW94
Sounds sound like a motor mount. See the silver canister in the picture? That is the upper motor mount. Go out to your car and check to see if there is any black residue below it (as shown in the picture) or any oil. I can't remember if you have the same version of the motor mount in the picture but it will be in the same spot regardless.


Even without going to my car I know for a fact that there is oil/residue underneath. What exactly is the issue? What should I do?
 
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Old Apr 11, 2012 | 07:55 PM
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Originally Posted by HRM
The clunk could be the motor mounts. They are easy enough to check with the hood open you will see big motion in the engine when moving the car in either forward or reverse.
I see the motor mounts, and understand that age could be making an impact on their usage, but what exactly should I do? Switch them out and hope the problem is resolved? Sometimes the clunking seems as if something is loose underneath the vehicle.
 
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Old Apr 11, 2012 | 07:56 PM
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As for the squealing sound, is my best bet to just buy new brake pads for the front wheels of the vehicle because of aging. Even though they are pretty much 80% in tact? It's pretty embarrassing to pull up in front of a group of friends and have your brakes squeal you know.
 
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Old Apr 11, 2012 | 08:17 PM
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The main thing I would check would be the engine mounts:
http://www.waymotorworks.com/oem-upp...unt-04-06.html

http://www.waymotorworks.com/oem-min...t-r50-r53.html

I am by no means a mechanic, but it is an educated guess that if you hear you engine clunking it usually is from the failed mounts. That being said, your best bet is to have a reputable mechanic inspect the car if you recently purchased it.

It isn't hard to replace the engine mounts provided you have the right tools. There should be a DIY article somewhere here, I'll have you search for that.

As for the brakes - clean them. Take off your wheels and spray the pads, calipers, and rotors with brake cleaner (it is sold at any autoparts store). If there is any oil or other crud on any of these surfaces, it will cause squeaking. I recently replaced both my pads and rotors - they squeaked a fair amount until I cleaned them well. So just changing them whole exactly solve anything.

There is also a compound you can buy to put between the pad and caliper, not the pad and rotor. This prevent vibrations that can also result in squeaking. But I think your first step is to clean your breaks thoroughly.
 
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Old Apr 11, 2012 | 08:20 PM
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I would also jack up the car, if you can, to see if anything is actually loose. You really have to look at things with a good light and inspect it.
 
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Old Apr 12, 2012 | 06:19 AM
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do you also get the clunking noise if you stab the brakes really quickly and let off at lower speeds? Rear control arm bushings make a noise like that when they are worn out, and I had to replace them already on my car.
 
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Old Apr 12, 2012 | 09:20 AM
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Originally Posted by JohnW94
I would also jack up the car, if you can, to see if anything is actually loose. You really have to look at things with a good light and inspect it.
Thank you, I will be doing a thorough check today, just still want to understand why the motor mounts have the residue underneath them? What does this have an inclination towards? Sorry for being repetitive.
 
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Old Apr 12, 2012 | 09:25 AM
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That motor mount is oil filled, and when it fails the oil leaks out as seen in the photos above, and movement of the engine increases. The fix is to clean up the area and replace with a new mount.
 
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Old Apr 12, 2012 | 09:26 AM
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If they are mounts like in some mercedes and other bimmers they are hydraulic, meaning its easier to think of them as a shock or strut rather than an old chunk of rubber like old mounts.

When a shock/strut fails it ***** its oil out everywhere, similar on a hydraulic motor mount.
 
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Old Apr 12, 2012 | 09:30 AM
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Thanks so much guys, another issue tackle and solved.
Next will be the brake squeal

Thank you for pictures, links to where I can buy the mounts and explanations of the problems.
 
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