Front Brake Pad DIY
You'll need the following
New brake pads, and sensor and about an hour of your time.
Ballpin hammer
3/16" punch
13mm socket
flat blade screw driver
17mm socket to remove wheel
Small needle nose pliers
Floor Jack
Benz made this really easy to change pads. You do not remove the calipers unless you are changing the rotors. Unlike previous cars with the SBC module, you do not have a SBC to unplug.
Jack up the car, remove the wheel. On the caliper you'll see two pins that hold in the brake pads. Take the hammer and the 3/16" drift punch and knock the pins out of the caliper. You may have to wiggle them slightly to get them all the way out. Once you've done that the retaining clip can be removed. Pay attention to which way the clip is mounted for reinstallation. There is a bolt that is located on the back side of the caliper. It is a 13mm. You'll have to remove that bolt and remove the bar before you can remove the pads. Take the flat blade screwdriver and gently pry the pad away from the disc pushing the pad back towards the caliper. The pad is easily removed once there is enough space. Remove and replace each pad one at at time. Install the bar, clip and pins in reverse order and replace the wheel and retorque to spec. The car only had one brake pad sensor for both tires up front. You'll be able to remove it with the pad or if it isn't not damaged pull it away from the pad with the needle nose pliers.
After you have done the first wheel assembly. Go in the car and pump the brake pedal so you don't overflow the master cylinder. Repeat for the opposite side. Remember to pump the brakes before you go and drive the car.
Last edited by amg guy; May 7, 2016 at 07:40 PM.
0 miles new
26000 miles new rotor and pads on all four
56000 miles on just pads
for me.
Thanks!
Thanks!
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As a very rough guide if the lip on the outside edges of the rotor is less than one sixteenth of an inch or one millimeter there is a chance the rotors still have life in them.
as long as the rotor is within thickness spec then you are fine
One small addition.
usually not needed to pump between wheels.but make sure to unscrew the cap before starting. Feel free to leave a rolled up paper towel around the opening in case of flowover.
Lastly - when pumping, use your hand and only pump the normal travel distance of the pedal. if you pump all the way to the bottom, you may get unlucky and wear/tear seals in the assembly. HIGHLY unlikely on a new car like ours, but can happen once they get to be a few years older (esp is living in hot and dry climates). Just good "work hygiene" and means you are pumping or or two more strokes. No big effort addition!








