Q: Is it mandatory to replace the rotors with a front brake pad replacement? 2010 BMW

asked by on

is it mandatory to replace the rotors with a front brake pad replacement
My car has a manual transmission.

Hi there - if the brake rotor is worn below a minimum rotor thickness (stamped on each rotor), then yes, it can be mandatory to replace the rotor. This is for safety reasons. If the rotor is grooved and requires surfacing for the new pads, and this machining results in a disc that is too thin, it cannot be re-used and must be replaced. Surfacing the rotor to make it perfectly smooth provides the maximum amount of surface area for the brake pads to engage - maximizing brake performance. In many cases, it is less expensive to simply replace the brake rotor, rather than machine it smooth. Worn brake rotor symptoms are as follows.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Is it mandatory to replace the rotors with a front brake pad replacement? 2010 BMW

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: on my abs module one of the lines Won’t go in straight. It was leaking but then it stopped. What do I do?

If it doesn't feel like it is going in correctly, or if you suspect that the line doesn't fit, the right thing to do is to back off and find out why. By jamming it on in you might have...

Q: When I brake is sounds and feels like grinding metal

This is usually a sign of the brake rotors developing hot spots or becoming warped. When the brakes are applied, an enormous amount of heat is generated. As this happens and the brakes heat up and cool down repeatedly, the...

Q: Check engine light and trouble starting.

Hi there. The P0172 trouble code indicates that there is too much gasoline being detected in the exhaust gases exiting the combustion chamber. The ECU uses a number of instruments, such as the mass air flow sensor (MAF), oxygen sensors,...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...