TECH: Why Are Some Brake Caliper Pistons Phenolic (Plastic)?

Question: Why are some brake caliper pistons plastic (phenolic resin) and some are steel? Answer: The plastic material is actually phenolic resin. This high strength man-made material has several advantages over steel brake caliper pistons. The first advantage is corrosion resistance. The material will not react with water and salt and rust. But, if the […]

Read More…

Electronic Brake Pad Wear Sensor Diagnostics

Electronic brake pad wear sensors can be found on a variety of vehicles, including domestics like Cadillac and Chevy. Also, brake pad wear sensors can be found on BMW, Mercedes Benz and Audi vehicles. These give a more accurate reading on brake pad depth compared to squealer metal tabs that make noise that most drivers manage to […]

Read More…