I replaced the pads, but my code reader can't reset the warning.

I've searched but can't find how to do it

And how do you reset the service mesage after an oil change.

Thanks

Either one of two things.

1) replace the brake pads sensors along with the pads you just replaced

or

2) the other axle of pads has cut the sensor and needs to be replaced too.

__________________


1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350

There's no need to re-set anything following brake pad replacement. Once the worn-through sensor is replaced (along with the brake pads), the warning message will disappear. Have you inspected all of the wear sensors carefully?

Thanks, I found how to reset the service a/b warning in the owners manual. I suspected the sensors. There are only two, both on the pasenger front and rear. I will check them again.

So do these sensors need to make contact through the pads? There are two wires, do the wires make a circuit through the pads normally? and when the pads weardown the rotors put ground on one of the wires?

No when the pads wear down they cut the circuit and when the module sees an open circuit on one of the sensors, it trips the light.

__________________


1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350