- Warping: Look at the rotors for any signs of warping. If they appear uneven or wavy, they may need to be replaced.
- Grooves: Check for deep grooves or gouges in the rotors. These can be caused by excessive wear or damage, and can indicate that the rotors need to be replaced.
- Scoring: Look for any scoring or scratches on the rotors. These can be caused by brake pads that are too hard or worn out, and can also indicate that the rotors need to be replaced.
- Thickness: Measure the thickness of the rotors. If they have worn down to the minimum recommended thickness, they will need to be replaced.
- Noticing a "pulsating" brake pedal while braking: This can be a sign that your rotors are warped.
- Hearing a grinding or squealing noise when braking: This can also be a sign of warped or worn rotors.
- Your brake pads are wearing out quickly: If your brake pads are wearing out more quickly than normal, it could be a sign that the rotors are causing them to wear prematurely.
It's important to periodically inspect your rotors and have them replaced when they start to show any signs of wear. Delaying replacement could lead to brake problems, which can be dangerous and costly to repair.
