Brake Pad wear malfunction light - Mercedes-Benz Forum

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post #1 of 11 (permalink) Old 09-08-2008, 09:06 PM Thread Starter
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Brake Pad wear malfunction light

I need advice on how to reset the Brake Pad wear warning message on my 2003 c230 Kompressor sports sedan. I replaced all the rotors and pads on my c230 as well as the wear indicators now I get the pad wear message only when I shut the engine off and again when I start it ,the message no longer appears when I am driving,I think there should be a way to reset the warning system but I can not figure how to do it Thanks Willytac
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post #2 of 11 (permalink) Old 09-08-2008, 11:17 PM
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Hello! I'm sorry I do not have an answer to your question, but I see you did your own replacement of your brakes and rotors, which leads me to believe you must know quite a bit about brakes. If you don't mind, I'd like to ask you a question. I have a 2007 C230 Sport Sedan which has about 25% left on front brakes and I have about 19,000 miles on the car and this will be my first time replacing the brakes. The service guy said most people wear out their brakes on this type of car within 10,000 - 15,000 miles. But, he said I will not only need pads, but I will need new rotors also. Do you know what the reason would be for this? What would ruin the rotors if I haven't even worn down the brake pads yet? Thank you for any help and answers!
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post #3 of 11 (permalink) Old 09-09-2008, 07:41 AM
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Rotors need to be changed when they are warped or below minimum specs. Did the tech tell you what the measurements were? In normal situations, you ought to get at least two sets of pads before the rotors need to be replaced. On my 210 chassis, I have 83,000 miles on the fronts pads and the wear light just came on. The rotors have 60,000 miles on them and are probably still good for another set of pads. The rear pads have 118,000 miles on the original pads and rotors and they are getting close to minimum.

Len
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post #4 of 11 (permalink) Old 09-09-2008, 02:01 PM
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Quote:
Originally Posted by willytac View Post
I need advice on how to reset the Brake Pad wear warning message on my 2003 c230 Kompressor sports sedan. I replaced all the rotors and pads on my c230 as well as the wear indicators now I get the pad wear message only when I shut the engine off and again when I start it ,the message no longer appears when I am driving,I think there should be a way to reset the warning system but I can not figure how to do it Thanks Willytac
Hi, Willy. You are likely to get more pointed information for your car if you post in the W203 forum as that is specific to your chassis; this general forum is less likely to yield exactly the answer you want. I have a W210 and on it once the wear indicators were replaced the malfunction warning went away. However, on one of them I failed to be very careful about the wire itself and vibration (I think against the caliper, I can't recall) wore through it and lit the light a couple months later. Replaced the sensor with a little more care and it's been fine ever since. MB usually doesn't change things drastically, but there are some newer models that require a reset through the star diagnostic system; again, that's probably something your fellow 203 owners will know.

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Originally Posted by sheribaby99 View Post
Hello! I'm sorry I do not have an answer to your question, but I see you did your own replacement of your brakes and rotors, which leads me to believe you must know quite a bit about brakes. If you don't mind, I'd like to ask you a question. I have a 2007 C230 Sport Sedan which has about 25% left on front brakes and I have about 19,000 miles on the car and this will be my first time replacing the brakes. The service guy said most people wear out their brakes on this type of car within 10,000 - 15,000 miles. But, he said I will not only need pads, but I will need new rotors also. Do you know what the reason would be for this? What would ruin the rotors if I haven't even worn down the brake pads yet? Thank you for any help and answers!
Hi, Sheri. I'm with Len. MB uses fairly soft pads and rotors, and rotors do wear out faster than on other makes, but typically they are good for two and sometimes three sets of OEM pads. There are really only three reasons you ever are required to change rotors: damage (cracking for example), warping (you feel the pulse through the pedal) and that they have worn to their minimum thickness specification (or they are so close to it that they will have worn below that spec before the next set of pads are worn out).

If the "service guy" just told you this on a phone call and without a proper inspection, he's just looking to make extra money. Personally -- based SOLELY on that interaction -- I would take my business elsewhere, or perhaps if I was in a little meaner mood I'd ask him how he can say that without an inspection and then ask to speak to his manager.

Any competent Benz mechanic can change these, it doesn't have to be the dealer, and most metro areas in the country have at least one good indie shop. A good indie is invaluable if you're not going to DIY everything and don't have buckets of cash laying around to line the stealer's pockets.

Take care and enjoy the ride,
Greg

Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy; its inherent virtue is the equal sharing of misery. (Winston Churchill)
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post #5 of 11 (permalink) Old 09-09-2008, 11:07 PM
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It was when I took my car in to the dealership for my service B. They did an inspection and the service guy said that usually you need to replace the rotors every other set of pads, but that this time, even though it is my first set of pads I will be replacing, he said I will need to replace the rotors as well. When I asked him, he did mention that they are softer on my sport model and that they wear out quicker. But, he didn't say exactly why (whether they are warped, cracked, etc.). He said most people wear out the pads on my type of car about every 10,000-15,000 miles and that I am already way over that and I still have 25% left before I need to replace them (by the time they need replacing I will have about 23,000-24,000 miles). I will inquire more specifically before I get them replaced. Would the amount of miles I have increase the likelyhood of a cracked or warped rotor. But, he didn't say why, he just said I would need to have them replaced. My car is still under warranty, can I take it somewhere else, or would that void out the warranty? Thanks for any help.
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post #6 of 11 (permalink) Old 09-10-2008, 07:17 AM
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Getting your brakes done elsewhere will not affect your warranty. The number of miles would not increase the likelihood of rotor damage. The dealership probably keeps a record of their recommendation to you and likely has the rotor measurement noted if they actually measured it. You can call and ask what it was if you're curious.

Len
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post #7 of 11 (permalink) Old 08-15-2010, 12:08 AM
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Quote:
Originally Posted by sheribaby99 View Post
Hello! I'm sorry I do not have an answer to your question, but I see you did your own replacement of your brakes and rotors, which leads me to believe you must know quite a bit about brakes. If you don't mind, I'd like to ask you a question. I have a 2007 C230 Sport Sedan which has about 25% left on front brakes and I have about 19,000 miles on the car and this will be my first time replacing the brakes. The service guy said most people wear out their brakes on this type of car within 10,000 - 15,000 miles. But, he said I will not only need pads, but I will need new rotors also. Do you know what the reason would be for this? What would ruin the rotors if I haven't even worn down the brake pads yet? Thank you for any help and answers!
A mercedes mechanic friend of mine told me the C230 Sport Sedans have an inferior set of original equipment rotors which only last 50,000 to 70,000 max. He stated, another person here said, 15,000 to 22,000 is the most you normally get on a set of shoes and the rotors warp so they need to be turned so much to make them usable that they only get one turn and must then be replaced.
I have an 07 C230 and I too am doing my own, while a little more expensive the EBC GREENSTUFF 2000 SERIES SPORT BRAKE PAD and the EBC ULTIMAX BLACKDASH SLOTTED BRAKE ROTORS, VENTED, BLACK ZINC, SET are my and my mechanic friends choice because the wear better have better stopping power and don't have usually warp even under hard braking. While these are our choice I alway believe everyone should do their own research and make their chioce based what they read and who they feel makes the best case for their product. Ther are more expensive rotors and pads so research and spend your money on the product you fell best fits you're needs and desires!!
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post #8 of 11 (permalink) Old 08-15-2010, 12:19 AM
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Originally Posted by willytac View Post
I need advice on how to reset the Brake Pad wear warning message on my 2003 c230 Kompressor sports sedan. I replaced all the rotors and pads on my c230 as well as the wear indicators now I get the pad wear message only when I shut the engine off and again when I start it ,the message no longer appears when I am driving,I think there should be a way to reset the warning system but I can not figure how to do it Thanks Willytac
I reset my 2007 C230 Sport Sedan by first going to the To Rest to Factory settings depress and hold the reset button for 3 seconds. Then depressed the button on the dash. It removed all of my personalized settings as well but what's a few minutes restting them, when it gets rid of that irritating Wear Indicator EVERY time I start the car and EVERY time I shut it off. Hope this helps!

Last edited by reeder; 08-15-2010 at 12:23 AM.
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post #9 of 11 (permalink) Old 08-15-2010, 06:58 AM
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FYI, My wifes 06? C230 sport was leased and turned in with almost 50,000 miles with original pads and rotors.

2010 E550 4matic, AMG Package
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post #10 of 11 (permalink) Old 08-23-2010, 01:55 PM
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I reset my 2007 C230 Sport Sedan by first going to the To Rest to Factory settings depress and hold the reset button for 3 seconds. Then depressed the button on the dash. It removed all of my personalized settings as well but what's a few minutes restting them, when it gets rid of that irritating Wear Indicator EVERY time I start the car and EVERY time I shut it off. Hope this helps!
Is there a similar reset sequence on a 2003 petrol c180? the "brake pad wear contact workshop" message is refusing to quit even after a complete set of front pads and disks, and a new set of rear pads. Mechanic says I need to bring vehicle to Merc dealer for reset
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