How to change S500 rotors and pads?

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Jun 13, 2011 | 12:10 PM
  #1  
My brake pads are completely done, and rotors are wropped the car is hard to stop. I bought it like that! I just recently got it about two weeks ago. Ive been going thru many post and forums but most are for just brake pads, I want to do the rotors too.

is it just like a standard car? with the 2 bolts that hold the caliper in, tap it slide it out and the little nut that holds the rotor. and remove that and it comes off? or is there some exotic difficult design with Mercedes?

btw this is what I bought. Ive used them before with my Jaguar (boy can they stop yur car in a flash).

http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWNX%3AIT
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Jun 13, 2011 | 01:28 PM
  #2  
Quote: My brake pads are completely done, and rotors are wropped the car is hard to stop. I bought it like that! I just recently got it about two weeks ago. Ive been going thru many post and forums but most are for just brake pads, I want to do the rotors too.

is it just like a standard car? with the 2 bolts that hold the caliper in, tap it slide it out and the little nut that holds the rotor. and remove that and it comes off? or is there some exotic difficult design with Mercedes?

btw this is what I bought. Ive used them before with my Jaguar (boy can they stop yur car in a flash).

http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWNX%3AIT
If you have changed brakes before, as you described above, you will be fine with a MB.

Nothing exotic or special.

Just make sure to have one HUGE sledge hammer , as I had to beat the living **** out of the old rotors as they were frozen on the spindle.

It will take you more time to get the car in the air and the tires off, then it does to change the brakes, IMHO
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Jun 13, 2011 | 02:31 PM
  #3  
Quote: If you have changed brakes before, as you described above, you will be fine with a MB.

Nothing exotic or special.

Just make sure to have one HUGE sledge hammer , as I had to beat the living **** out of the old rotors as they were frozen on the spindle.

It will take you more time to get the car in the air and the tires off, then it does to change the brakes, IMHO
what do you mean by it'll take me more time to get the car in the air and take the tires off? is it that easy?

I have one last question does the caliper come off like that or im going to have problems? because on most of the threads they talk about taking the caliper apart and all this other stuff for the brake pads.

and how do you bleed the brakes? ive never done that before and i think it could help if i did.
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Jun 13, 2011 | 04:36 PM
  #4  
Quote: 1. what do you mean by it'll take me more time to get the car in the air and take the tires off? is it that easy?

2. I have one last question does the caliper come off like that or im going to have problems? because on most of the threads they talk about taking the caliper apart and all this other stuff for the brake pads.

3. and how do you bleed the brakes? ive never done that before and i think it could help if i did.
1. YES they can be changed that easily. It will take less than 10 minutes a side. Even if you are REALLY slow. You will need one small punch pin to remove the old pads. A pair of channel locks on the old pads works great to push the pistons back in, or you can rent a pad spliter at any AUTO store.

2. Yes, a couple of bolts and they are off. NOTHING tricky. I like to reinstall the bolts with a little bit of BLUE locktite on them.

3. You do NOT need to bleed the brakes when changing out pads and rotors. And I would STRONGLY suggest that IF you have NEVER done this before,DO NOT let your MB be your first.

My local MB dealer changes my brake fluid for ma for $100. Think long and hard on this before attempting yourself.

It is NOT that difficult, but if done wrong it can lead to poor braking, loss of ABS system, etc, etc.
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Jun 14, 2011 | 12:13 PM
  #5  
There's nothing to worry about with brake assist or anything?
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Jun 24, 2011 | 06:35 PM
  #6  
What size socket are the 2 screws holding in the caliper on the rotor / spindle? I changed the pads, easiest thing ever. But I guess my rotors are really bad because the car is still hard to stop. But the pistons on the calipers I had just pushed them back with my hands and using the old brake pads. I got dirt but its nothing that some Palmolive cant take out.
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Jun 27, 2011 | 12:02 AM
  #7  
Ive taken the calipers apart to paint them lol, now all the fluid is gone. What do I do? I was just going to put some more juice in the resivore, dot 4 right? Any idea on how many it might take? and how came i get off a stripped rotor retainer bolt? it was like that when i got it.
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Jun 27, 2011 | 03:10 PM
  #8  
Quote: Ive taken the calipers apart to paint them lol, now all the fluid is gone. What do I do? I was just going to put some more juice in the resivore, dot 4 right? Any idea on how many it might take? and how came i get off a stripped rotor retainer bolt? it was like that when i got it.
Step one, YOU MUST bleed the brakes now. DO NOT drive it tell this is done. Judging by your questions and response, PLEASE have a reputable service station preform this. I would NOT recomend it for you my friend.

Next, the retaining allen head bolt is aluminum, just drill it out. Go SLOW with a good bit as all you need to do is pop the head. As you are replacing the rotors, it really doesn't matter if you hit into them.

Good luck
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Jun 27, 2011 | 03:53 PM
  #9  
Be careful with bleeding the brakes. You should use a pressure bleeder to do it. Makes it the easiest anyways. If you try the pedal pump technique, there is a good chance you will destroy the o-rings in the brake master cylinder if you press the brake petal to far. I like Mr.Amg1's solution if you have never done it before because it is difficult to change out the brake fluid in the ABS system.
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Jun 29, 2011 | 03:19 PM
  #10  
Ive bleed the brakes and they are back to like new. They stop hard. But I have some lights on the dash well messages. Whats ESP, and BAS? and the little yellow ABS is on. If I disconnect the battery and re do it. Will that reset it? Or Do I need a OBII reader or some special ABS reader?
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Dec 14, 2013 | 10:52 AM
  #11  
Quote: Ive bleed the brakes and they are back to like new. They stop hard. But I have some lights on the dash well messages. Whats ESP, and BAS? and the little yellow ABS is on. If I disconnect the battery and re do it. Will that reset it? Or Do I need a OBII reader or some special ABS reader?
Are you sure you can drive?
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Dec 15, 2013 | 01:17 PM
  #12  
yes you can, but it could be the speed sensor take it out and clean it and reinstall and see if that fixes it first.
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