.. it is orange. I have just bought the car and I spoke to a garage who replaced the ABS unit. They said they also replaced one of the sensors beneath the brake master cylinder and the other one probably needs replacing. I fiddled with the wires to the sensors and the light went out for a few miles. I can probably replace it myself but I need a bit of advice first. Firstly when I unscrew the sensor does brake fluid run out ? Also, does one reach down from the top, sqeezing past the brake pipes ? it is too tight for my big hand. The car is a 2004 316Ti ES, what E no is it please.