"Brake Wear"
Thread Starter
Senior Member
Joined: Jan 2009
Posts: 252
Likes: 0
From: Houston
2007 C230 Sport
"Brake Wear"
Got this message on my dash on my way into work…did a quick search, and obviously I will check my manual when I get home, but I didn’t find much here to what exactly this means (my car has almost 30k miles, so im sure its the front pads are getting worn).
Didn’t know if anyone was bored and had a quick second to decipher for me... lol.
Didn’t know if anyone was bored and had a quick second to decipher for me... lol.
MBWorld Fanatic!
Joined: Nov 2001
Posts: 5,851
Likes: 196
From: Huntington Beach, Ca.
'17 Jaguar XF
Brake pads need replacement. There's a sensor mounted inside one of the pads that gets activated when the wear reaches a certain point. I believe they put the sensor on only one front wheel, one pad now so you need to look at all the wheels immediately.
Super Moderator
Joined: Dec 2006
Posts: 2,403
Likes: 64
From: Camas, WA
2007 C230SS; 2014 ML350 BT
Yep, you need new pads. Just curious, do you do a lot of in-town driving? Just comparing, as I have almost 50K miles and have about 40% pad left. I do about 80-90% highway driving though.
MBWorld Fanatic!
Joined: Aug 2007
Posts: 1,544
Likes: 87
From: San Jose, CA
2010 c300
On 2005 model 230k there's a sensor in the front passenger. When the pads wear to a certain point the sensor also wears down and starts rubbing on the disk. It actually creates an open circuit on the sensor and this causes the warning on your dash. I've driven 1 month with the warning light on and after replacing my pads I had about a little less than 1/8 wear on the pads. But I don't suggest you let it run that long. Get the pads replaced. Sensor will need to be replaced also.
MBWorld Fanatic!
Joined: Jul 2008
Posts: 3,191
Likes: 7
From: Va Beach, VA
05 C230K SS (sold), 06 C55 (sold), 08 Yamaha R1 (sold), 16 X5M
ya my pads just started squealing some but no sensor warning yet...im hopoing to replace them before that \comes on so i can preserve the sensor and use it again...
Senior Member
Joined: Mar 2008
Posts: 358
Likes: 0
From: San Pedro CA and Costa Mesa CA
2005 W203 SS
after 5 years+ i have never gotten that messg or seen that stupid sensor work... its by getting new tires that I see how long i have and then just change the brake my self.
MBWorld Fanatic!
Joined: Aug 2007
Posts: 1,544
Likes: 87
From: San Jose, CA
2010 c300
FYI the sensor is about $12-$15 from the stealers. If you only have one on your car then it won't cost you much to buy a new one when you're ready to replace your pads.
Trending Topics
Member
Joined: Jun 2009
Posts: 154
Likes: 0
.
The salesman told me to downshift when braking. It's in the book, too. The brakes don't really stop the car if I drive over 40 mph. It just took me a while to catch on and do it ALL the time.
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
P
MBWorld Fanatic!
Joined: Feb 2006
Posts: 2,144
Likes: 0
From: Vancouver, B.C. Canada
05 C55
unless your dealer is difference from mine, they replace them when they swap out new pads regardless if they have been activated or not.
MBWorld Fanatic!
Joined: Oct 2004
Posts: 4,152
Likes: 60
From: NJ, NYC
Something Slow
mines came out last week and they squeal like crazy...didnt have the time to change the pads yet. my car came with Three Sensors Two in the front one on the REAR.. i have Ceramic pads waiting to be drop in :-D
MBWorld Fanatic!
Joined: Feb 2003
Posts: 5,983
Likes: 21
From: Vegas and Vancouver, BC
.
On 2005 model 230k there's a sensor in the front passenger. When the pads wear to a certain point the sensor also wears down and starts rubbing on the disk. It actually creates an open circuit on the sensor and this causes the warning on your dash. I've driven 1 month with the warning light on and after replacing my pads I had about a little less than 1/8 wear on the pads. But I don't suggest you let it run that long. Get the pads replaced. Sensor will need to be replaced also.
MBWorld Fanatic!
Joined: Aug 2007
Posts: 1,544
Likes: 87
From: San Jose, CA
2010 c300
My rotors were pretty worn in the front so it had to be replaced. On ventilated disk brakes the pad and disk doesn't wear out evenly. Meaning the outter portion of the disk becomes more recessed over time so when you put new pad, the new pads flat suface will not make 100% contact with the disk. This could potentially cause longer braking distance or more pressure be applied to the brake pedal to stop the car normally. Probably not safe not to replace the disk also.
The rear disks was still ok on mine so I left those alone and just changed the pads. Hope this helps.
The rear disks was still ok on mine so I left those alone and just changed the pads. Hope this helps.
MBWorld Fanatic!
Joined: Jul 2008
Posts: 8,384
Likes: 800
2019 G70 6MT & 2022 Ford Maverick XL
No rear sensors on 2005 C230s, at least.
Sensors can be purchased online for $3-6 versus the $12-15 at the dealerships, if anyone is interested. Also they're fragile and replacing the pads before the warning won't necessarily mean that you can re-use them. I've heard they break easily when you try to remove them.
Thread Starter
Senior Member
Joined: Jan 2009
Posts: 252
Likes: 0
From: Houston
2007 C230 Sport
I plan to look at all 4 pads this weekend. Can anyone say for-sure how many sensors the 07's have??
Do I have to replace the rotors with the pads? Is that what I am hearing? So for any "break" that needs to be serviced, I will need a pad, a sensor and possibly a rotor?
What are some good replacement part suggestions and what’s the cost?
I plan to DIY...
Do I have to replace the rotors with the pads? Is that what I am hearing? So for any "break" that needs to be serviced, I will need a pad, a sensor and possibly a rotor?
What are some good replacement part suggestions and what’s the cost?
I plan to DIY...
Last edited by 07 Benz; Jun 26, 2009 at 10:36 AM.
Super Moderator
Joined: Dec 2006
Posts: 2,403
Likes: 64
From: Camas, WA
2007 C230SS; 2014 ML350 BT
I plan to look at all 4 pads this weekend. Can anyone say for-sure how many sensors the 07's have??
Do I have to replace the rotors with the pads? Is that what I am hearing? So for any "break" that needs to be serviced, I will need a pad, a sensor and possibly a rotor?
What are some good replacement part suggestions and what’s the cost?
I plan to DIY...
Do I have to replace the rotors with the pads? Is that what I am hearing? So for any "break" that needs to be serviced, I will need a pad, a sensor and possibly a rotor?
What are some good replacement part suggestions and what’s the cost?
I plan to DIY...
Rotors generally need to be replaced every other pad replacement, so you should be good, but please measure rotor thickness to be totally sure.
Not a lot of selection for replacement pads for the 07's, but lot's of people here like the Akebono's, and Rock Auto lists them as now available for the 07's.
MBWorld Fanatic!
Joined: Feb 2003
Posts: 5,983
Likes: 21
From: Vegas and Vancouver, BC
.
Thread Starter
Senior Member
Joined: Jan 2009
Posts: 252
Likes: 0
From: Houston
2007 C230 Sport
http://www.brakeworld.com/catalog.as...RONT%20CALIPER
Just gonna change the front pads... can anyone comment on these in the link? I had them (Disk Italia) on my Crossfire SRT-6 and loved them. I didn’t take the rear pads out to inspect, but I removed the wheel, looked at the pads and they looked nice and fat. Money is tight right now, so fronts only…
I inspected the front rotors, and they looked/felt pretty fat also (didn’t measure bc I left my calipers at work) but I assume they are fine as I only have 30k (mostly highway) miles on her and I don’t drive that hard. I might take them to get re-surfaced as they look a little warn (circled). Is this normal? I don’t feel any pulsing like they are warped when stopping… they just have the circular wear marks.
How hard is it to change the sensors? I didn’t see any instructions in the DIY I found…
Just gonna change the front pads... can anyone comment on these in the link? I had them (Disk Italia) on my Crossfire SRT-6 and loved them. I didn’t take the rear pads out to inspect, but I removed the wheel, looked at the pads and they looked nice and fat. Money is tight right now, so fronts only…
I inspected the front rotors, and they looked/felt pretty fat also (didn’t measure bc I left my calipers at work) but I assume they are fine as I only have 30k (mostly highway) miles on her and I don’t drive that hard. I might take them to get re-surfaced as they look a little warn (circled). Is this normal? I don’t feel any pulsing like they are warped when stopping… they just have the circular wear marks.
How hard is it to change the sensors? I didn’t see any instructions in the DIY I found…
MBWorld Fanatic!
Joined: Aug 2007
Posts: 1,544
Likes: 87
From: San Jose, CA
2010 c300
http://www.brakeworld.com/catalog.as...RONT%20CALIPER
Just gonna change the front pads... can anyone comment on these in the link? I had them (Disk Italia) on my Crossfire SRT-6 and loved them. I didn’t take the rear pads out to inspect, but I removed the wheel, looked at the pads and they looked nice and fat. Money is tight right now, so fronts only…
I inspected the front rotors, and they looked/felt pretty fat also (didn’t measure bc I left my calipers at work) but I assume they are fine as I only have 30k (mostly highway) miles on her and I don’t drive that hard. I might take them to get re-surfaced as they look a little warn (circled). Is this normal? I don’t feel any pulsing like they are warped when stopping… they just have the circular wear marks.
How hard is it to change the sensors? I didn’t see any instructions in the DIY I found…
Just gonna change the front pads... can anyone comment on these in the link? I had them (Disk Italia) on my Crossfire SRT-6 and loved them. I didn’t take the rear pads out to inspect, but I removed the wheel, looked at the pads and they looked nice and fat. Money is tight right now, so fronts only…
I inspected the front rotors, and they looked/felt pretty fat also (didn’t measure bc I left my calipers at work) but I assume they are fine as I only have 30k (mostly highway) miles on her and I don’t drive that hard. I might take them to get re-surfaced as they look a little warn (circled). Is this normal? I don’t feel any pulsing like they are warped when stopping… they just have the circular wear marks.
How hard is it to change the sensors? I didn’t see any instructions in the DIY I found…
As far as the sensor, it's very easy once you see it. Just unplug on both ends and the new one goes back on the way the original was unplugged.
Thread Starter
Senior Member
Joined: Jan 2009
Posts: 252
Likes: 0
From: Houston
2007 C230 Sport
See attached image on rotor wear. I think your eye will be the better judge on the wear. There's also an indication marker on the outter rim of the disk if I remember correctly. My rotor was replaced after the 2nd set of pads about 54k miles on the car. You might be ok to just replace the pads.
As far as the sensor, it's very easy once you see it. Just unplug on both ends and the new one goes back on the way the original was unplugged.
As far as the sensor, it's very easy once you see it. Just unplug on both ends and the new one goes back on the way the original was unplugged.
MBworld Guru
Joined: Apr 2002
Posts: 22,058
Likes: 18
From: Diamond Bar, CA
W206 PHEV AMG
MBworld Guru
Joined: Apr 2002
Posts: 22,058
Likes: 18
From: Diamond Bar, CA
W206 PHEV AMG
typically the rotors last for about two sets of pads. depends on how you drive should last around 50-55k miles. 60k miles you definitely need to change out the rotors.
MBWorld Fanatic!
Joined: Aug 2007
Posts: 1,544
Likes: 87
From: San Jose, CA
2010 c300
See image. Also on the surface of the hub it says MIN 26mm or something. I forget the exact number. Maybe that's something else.
Frank, is this not it? This is what an SA showed me atleast.
Frank, is this not it? This is what an SA showed me atleast.
Last edited by aznmode; Jun 30, 2009 at 05:11 PM.
