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  #1  
Old 09-11-2002, 08:35 AM
ymsin's Avatar
Driver, Mercedes-Benz
 
Join Date: Feb 2001
Location: Malaysia
Posts: 1,645
Why are my brake discs wearing thin fast?

Jan 23 2002 was the day I changed my front discs on the 300SE.

Today, Sept 11 2002, they had to be replaced coz it was running thin. I am wondering why are the discs wearing down fast?

I run an average of 5,000 km per month, so that is roughly 40,000 km put in!

Is there something amiss here, or is this normal? The mech said it could be due to my driving. But I don't do any hard braking ....

Is it going to be another disc + pad change 8 months from today?

I wonder ...


ps. Just as well we decided to change the discs. We discovered a faulty brake pump with seals as hard as it could get ...
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  #2  
Old 09-11-2002, 06:49 PM
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Join Date: Jan 2002
Posts: 352
Seems to me like that the caliper is messed up. It is applying uneven pressure.
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  #3  
Old 09-13-2002, 04:27 PM
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Join Date: Jul 2001
Location: SoCal
Posts: 1,303
What's a brake pump? Do you mean the caliper? If so, the seals are a passive return for the caliper piston, and hardened seals would usually cause dragging brakes - accelerated disk wear.

If the disk wear is high, but the pad wear normal, you might suspect an incompatible pad/disk combo. E.g., installing racing pads with oem disks.

Steve
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  #4  
Old 09-13-2002, 04:59 PM
LarryBible
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I'm just offering something to think about.

When disk brakes first started becoming popular, it was not uncommon for folks to experience such things. The cause in many cases was that they rode with a foot touching the brake pedal ever so slightly. They could get by with this on a drum brake car, but on disks it is guaranteed that you will have very premature brake wear.

Good luck,
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  #5  
Old 09-14-2002, 12:35 AM
ymsin's Avatar
Driver, Mercedes-Benz
 
Join Date: Feb 2001
Location: Malaysia
Posts: 1,645
Thanks all for your comments.

I am not sure if calipers are the same as the brake pump but the brake pump was sure serviced and so far so good.

I don't drive on with a foot on the brake pedal. And if I did, I know I won't be getting very far

Keep well.
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