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You are watching: Mercedes check brake pad wear reset


Once I have my pads, rotors and also brake undertake sensors replaced (both front and also rear), will the indicator on mine dash walk off immediately or must I have it reset?J
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How long until the error disappears? I"ve had actually the work-related performed, new sensors installed and the undertake indicator still reflects "brake wear" on my dash. The sensors space correct and everything to be triple checked.J
I just adjusted my rears ~ the undertake sensor warning came on. The went off immediately after installing the new pads and sensors. Quadruple examine your install!Just a note. Over there is only one next that has actually the stay sensor. And also not every aftermarket pad sets have a brand-new wear sensor. Is there a opportunity than the mechanic re-installed the old stay sensor? it is an extremely simple, simply 2 copper wires the get cut when lock come into call with the disk. Perhaps the old ones whereby not connected properly or the wire gained cut.
I have brand-new wear sensors front and also back. The mechanic did not reuse the old ones. Is it feasible that the brand-new sensors are the wrong impedance or otherwise not ideal for the Benz? My brand-new sensors are aftermarket and not OEM.J
You have a few high end cars in her stable. Ns am certain you space not a newbie in taking care of your fix shop. I suggest you ask her mechanic to problem shoot this in ~ his expense. As I mentioned, the undertake sensor is a simple open/short device. Basic trouble shoot by checking them or shorting lock out. If her mechanic can"t figure that out maybe you should readjust mechanic! I consisted of a picture of a new sensor I had actually in my parts bin. Sensor is in reality shorted as soon as new. I believe that lengthy pin it s okay worn and also the conductors within get reduced thus opening the circuit. I wonder if her mechanic simply forgot to install them or did not attach them properly. Or probably one is defective. It would be straightforward to take a look. But as i said, this need to be his job! This is not rocket science!
Thanks to everyone that responded.The solution turned out to be the easiest one: among the brake undertake sensors to be defective. It had a break somewhere in the housing which do the electric circuit open; just as if it had worn through.So I changed it and voila, soon the annoying post on my display disappeared.J
That totally depends on her driving profile and also style, and brake product I just replace the behind discs and pads on mine R320 2008 after end 160K km. The fronts have been an excellent since 70K km and will be good for a few more years. I continued to be with OEM. But they which with about 2 mm of pad left. For this reason no big rush. I inspect my pads twice a year once I change winter-summer tires. Or when you turn them..
I recognize old thread. I have actually an X164 (2008 - GL450). The above is most likely the trouble with mine car; it"s just obtained 15k mile on the pad and the sensor threw a code. Had actually the mechanic put the car on the rack and also check every 4 corners; brakes & rotors look at fine. Will certainly grab a couple of these from the regional Napa and have him replace both; together we couldn"t tell which one could be malfunctioning.
Just to throw my 2 cents in here.The brake wear sensors have two wires to run to contacts embedded in plastic in ~ them. The sensors are triggered as soon as the pads (and thus the plastic that the undertake sensors) wear under to the allude where the 2 wires feeding into / out of them created a close up door circuit (or short) with the brake rotor.When ns did my front and also rear pads, front rotors only, job a couple of main ago, I supplied one OEM undertake sensor for the front and an AutoZone wear sensor because that the rear. I"m not sure if the fronts and rears space interchangeable. Ns didn"t stroked nerves trying to figure it out seeing together they"re only six or seven bucks each. You may additionally find the very same wear sensors fit a multitude of different MB models of the exact same era. Ns can"t check out MB developing a brake undertake sensor because that each design any much more that I deserve to see them emerging a new sump plug....On my 2012 R350 4Matic gasoline model, there is one wear sensor ~ above the front and also one top top the back, both on the ideal / us passenger / starboard next of the car. They merely clip right into notches in the pads. Copy just how they to be fitted on the old pads and you can"t walk wrong.You need to be mindful when installing them no to chafe or bending the wires such the they come into call with each other or quick circuit. Return the wires space insulated, the insulation is an extremely thin and probably quite easy come damage. If the wires DO short it has actually the same impact as the sensor contacts making a circuit through the brake rotor, so you"ll gain a false point out of brake wear. If you snap a cable either you"ll gain a brief (and a false wear warning) or the sensor will never ever work at all.Given the sensors are only six or seven bucks each, and also given just how they work, ns would change them every time I replace the pads. You have the right to imagine, say, how water between the exposed contact on one old, worn, sensor might create the same circuit together if the contacts were in contact with the rotor.Once the pads and sensors are replaced the brake undertake warning have to disappear virtually immediately. You might need to rotate the ignition on and off a few times, but that"s it.Oh. 125K miles on what i think to be the original pads and also rotors, although i can"t be sure because the car had 85K miles on it once we purchase it. Prior rotors were close to worn out, but rears to be perfectly it s okay to keep on using. I offered OEM prior pads and also front rotors indigenous genuinemercedesparts.com however el cheapo Bendix pads indigenous AutoZone because that the rears. Your fronts perform 75% the the braking, so spend your money there and also economize ~ above the rears if, like me, you have actually to.

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