When rotors go bad?

[No Pvmt]

I just had my 30K service done on my `04. the DLR sd that I need new pads and rotors, what signes do I look for that my rotors need to be changed (pads I can tell)?

 

[sean]

all it takes is one deep groove to ruin a set of rotors. i had to replace my rears with the first pad change.

 

[No Pvmt]

Thanks Sean for the reply,
So grooves are okay as long as they are not too deep?

 

[sean]

grooves are bad, since you can't have the rotors turned. you will have some small grooves but if the rotor is thinner than the min specs replace them.

 

[BaldEagle]

you can usually feel when they are warped as you are coming to a stop.

 

[Porter]

Putting new pads on grooved or warped rotors causes the rotors to eat up the new pads. I tried to be cheap one time and put new pads on grooved rotors and the rotors ate up the new pads in only a few months.

Sean is right, the rotors aren't supposed to be turned. They'll end up being too thin afterwards. Be prepared, it takes a bit more effort to change the rotors and they tend to be more expensive (like anything else for LR).

 

[eliaschristeas]

touch the rotors. If they're bumpy -you may wanna change them. Although, I've had min spec rotors before which were pretty smooth and the pads I put on lasted a long time anyway. You've gotta use your gut and make the call on this one. - E

 

[No Pvmt]

Thank you all, for the information. I'll check them, I'am looking at going with Dba Gold rotors and LR pads. Anybody use this set up?

 

[BaldEagle]

i just replaced my rotors with regular rotors with ferodo pads from Atlantic british. very satisfied