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Premium Member 2007 SLK55 AMG
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Discussion Starter #1
Hi all,
I have a slight Brake Judder when braking, it seems to be the Front Brakes.
Would Skimming the Discs help? There is a local Garage that can Skim the Discs on the car. The cost is around £50 - £80.http://www.skimmydiscs.co.uk/
Does anyone know the minimum thickness of the Disc?
Also what are the best Pads for normal driving?
Cheers
Russ
:smile:
 

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Premium Member 2007 SLK55 AMG
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3,561 Posts
Discussion Starter #2
Thickness

Found this in a Post
Measured my Disks and they are very good for thickness at nearly New size.
Very little Lip, I am now wondering if they are new'ish and were never Trued Up?

Front brake disks

New: 32mm
Wear limit: 30mm
wear limit for maintenance service: 30.6mm

Rear brake disks

New: 26 mm
Wear limit: 24mm
Wear limit for maintenance service: 24.6mm

Mercedes Benz SLK Forum - View Profile: etyu
 

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DAS/STAR Premium Member 2005 SLK 55 AMG
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4,024 Posts
Try warming them up and then a few very hard stops - 70 to 0 .....

Failing that, a skim won't hurt ...
 

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Premium Member 2007 SLK55 AMG
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3,561 Posts
Discussion Starter #4
Cheers Sean,
I have tried some heavy stops etc, trying to remove any glaze etc.
No real change. I have booked it in for Friday so will Post the results.
 

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Registered 2014 SLK250
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1,000 Posts
If you have it booked in, then yes, wait and see why.
From a textbook angle, judder is due to disc run-out, thickness variation on the disc or caliper piston sticking. Gas build up will also do it, but if you have drilled and vented discs, then unlikely.
Interested to see result.
 

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Premium Member 2007 SLK55 AMG
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3,561 Posts
Discussion Starter #6
Skim

Not had them done yet as they need to remove the Calipers,
They could not get the whole machine in.
Going back on Monday 20th for an on-car Skim and MOT.:smile:

It was a nice day, so the Dog and I walk to a Pub down by the Canal:wink:
 

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Premium Member 2007 SLK55 AMG
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3,561 Posts
Discussion Starter #7
Skim

Car has been dropped off this morning for a MOT and Disk Skim
 

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Premium Member 2007 SLK55 AMG
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3,561 Posts
Discussion Starter #8
Done

No Judder:grin: As smooth as a babies bum.....
Passed the MOT and the guy looked all over it as he is interested in the car and says it looks perfect and is as tight as new.
I should have purchased new Pads.....:laugh:
Can anyone recommend Front Pads for normal road use please?
 

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Premium Member 2005 SLK55 AMG
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11,406 Posts
No Judder:grin: As smooth as a babies bum.....
Great news! :tu:

Can anyone recommend Front Pads for normal road use please?
I'm still on whatever pads were fitted when I bought the car (probably OEM), but I'm sure I've read in several places that EBC red stuff pads are the way to go, especially if you want to reduce the amount of brake dust created:
http://www.slkworld.com/tires-wheels-brakes-suspension/260874-brake-pads.html
http://www.slkworld.com/tires-wheels-brakes-suspension/249081-brake-question.html

There are more threads out there too... search is your friend! ;)
 
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Premium Member 2007 SLK55 AMG
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Discussion Starter #10
Cheers Dave,
I searched ont Tinternet and EBC Yellow are recommended although they say for Road and Race.
I will look for Red ones.
 

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DAS/STAR Premium Member 2005 SLK 55 AMG
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I've stuck with OEM pads .. they work for me, and the dust gets cleaned off when I wash the car!!
 
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Registered 2014 SLK250
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1,000 Posts
Redstuff certainly for cleanliness, but they do require some effort at the pedal. Also you should match them at the back.
Yellowstuff is the one making its mark now - originally brought out for trackday, but getting a big following for daily drive use. I am using them and certainly a lot less effort than the Redstuff I am used to. Dust is ok - much less than OEM.
 

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Premium Member 2007 SLK55 AMG
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3,561 Posts
Discussion Starter #13
Thank you,
I have been looking at Bedding in procedure and will try and do it correctly.
I have also contacted EBC for their recommendation.
If nothing comes of that I will put OEM on.
I can only assume that the Brakes where never Bedded in.
The Discs are 30.5mm thick even after the Skim.
I am away for a few days so the car will not be used so i have time to get some new Pads.
 
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