Do you need to replace rusty break rotors?

Yes, you should replace rusty brake rotors. While surface rust is often superficial and might not immediately affect braking performance, significant rust can:

* Reduce braking effectiveness: Rust creates a rough surface, hindering the friction between the rotor and brake pads. This leads to less efficient braking and potentially longer stopping distances.

* Damage brake pads: The rough surface can wear down brake pads prematurely.

* Cause uneven braking: If rust is unevenly distributed, it can lead to pulsating or vibrating brakes.

* Compromise rotor integrity: Severe rust can weaken the rotor material, potentially leading to cracks or failure.

Whether you need immediate replacement depends on the severity of the rust. Light surface rust might only require a thorough cleaning and potentially some light sanding. However, significant pitting, deep grooves, or significant material loss necessitates replacement. A mechanic can assess the condition of your rotors and advise you on the best course of action. Ignoring significant rust is a safety hazard.