I have a '94 C230 and the brake pad light came on (my front pads were
getting low)... I changed the pads and filled up the brake fluid
resevoir. But the light still stayed on. The owners manual doesn't
say anything about a specific method to reset it. I tried
disconnecting the battery, but that didn't work.
Does anyone know how to reset this thing?
Were your sensor wires single wire or 2 wire? Each one. I know there are 2
sensor wires on each
side. I want to know if each one was 1 wire or 2 wire each.
The early 1 wire sensors just go to ground when the edge of the rotor cuts into
The later 2 wire sensors have the light circuit going thru them. When the edge
of the rotor cuts
thru them, the circuit is broken. The light goes on and stays on. Unplugging the
sensor makes the
light go on also, just like it was cut.
If the brake pad warning light came on then the insulation on the sensor has
worn through. The brake pads are sintered. This means that they contain
small pieces of metal. If the insulation in the sensor is damaged it will
earth out through the pad. Just fit new sensors.
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