Brakes
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Junior Member
Joined: Apr 2008
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c300 sport
Brakes
I know there are many variables, but what is the expected life of the brake pads and rotors. Yeah dumb question I know, but also I have been told by 2 different people that the rotors can not be resufaced an a Mercedes, is this true?
MBWorld Fanatic!
Joined: Mar 2008
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From: 1 hours drive north of Sydney Australia
2007 W204 220CDI Classic Sedan
I would not be machining the brake rotors unless absolutely necessary anyway ,as it shortens their life. I have never had to machine rotors in 30 years of driving with disc brakes but I know thre are circumstances that can arise to make it necessary. Best to ask your service manager.
Member
Joined: Nov 2007
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From: Hollywood
push pedal bicycle & '08 C 350
i'm sure we have a sensor, if not you should hear a weird noise if the pad has a sensor on it like a hiss. just look at it after about 20k miles depending on how you drive. when the pad looks low, bring it to a brake shop.
Super Member
Joined: Jul 2002
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From: Vancouver WA
'14 GLK250 Diesel
-Yes, MB wants you to replace the rotors at the same time the pads are replaced.
-That can be anywhere from 20k-80k miles - there simply is no "average" brake life.
Our cars are used mostly for highway driving on extended trips. Since we retired, and this kind of use has become our "average", pad life has always exceeded the time we had our cars....but looking at the thickness of the pads, the absolute MINIMUM I would see would be 60k miles.
If you drive mainly in the city, on short trips, hills, etc, the corresponding number is going to be much lower. I don't know how you come up with an "average", particularly with the extremely small sample represented by a forum like this one.
-That can be anywhere from 20k-80k miles - there simply is no "average" brake life.
Our cars are used mostly for highway driving on extended trips. Since we retired, and this kind of use has become our "average", pad life has always exceeded the time we had our cars....but looking at the thickness of the pads, the absolute MINIMUM I would see would be 60k miles.
If you drive mainly in the city, on short trips, hills, etc, the corresponding number is going to be much lower. I don't know how you come up with an "average", particularly with the extremely small sample represented by a forum like this one.
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From: San Antonio
2008 C350
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C300 Sport/Palladium Silver on Black/P2
If you wear out the pads early on (first couple years), I'm pretty sure sometimes they only replace the pads, don't they? I had been told this before, but don't know.
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Super Member
Joined: Jul 2002
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From: Vancouver WA
'14 GLK250 Diesel
Yeah, a good dealer tech will actually MEASURE the rotors to see if they are still within spec, and react accordingly...if the pads go really early, the rotors may still be good.
They are supposed to do the measurement before a knee-jerk replacement, but after about 40k miles it's usually a formality, and replacement is all but certain.
They are supposed to do the measurement before a knee-jerk replacement, but after about 40k miles it's usually a formality, and replacement is all but certain.
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From: SEATTLE WASHINGTON USA
'08 C300 Lux Barolo Red Beige Leather P2 MM 18" wheels '84 944
Brake pad life
Generally speaking, on average, rotors are replaced every other pad change.
MB has always maintained that the discs should not be machined. When the time comes, the brake pad wear sensors will activate the light.
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C300 Sport/Palladium Silver on Black/P2
Based on my experience with my W203 C320, I am expecting about 45K miles before replacing the pads all around. And I make no particular effort to conserve the brakes. Replacing the pads is something everyone except the terminally helpless can do at home.
Generally speaking, on average, rotors are replaced every other pad change.
MB has always maintained that the discs should not be machined. When the time comes, the brake pad wear sensors will activate the light.
Generally speaking, on average, rotors are replaced every other pad change.
MB has always maintained that the discs should not be machined. When the time comes, the brake pad wear sensors will activate the light.
Many have noticed less brake dust on W204. Have you? I can't say as this is my first MB.
