Hi all,

I had rotors warp that were still under warranty (only 5k miles on them). The replacement rotors just arrived, but not with new pads. Is it okay to just swap the rotors if there is lots of pad life left?

Thanks

All the best.

 

Nedoerr, the general rule of thumb is new rotors, new pads. As long as there are not any score marks in the pads, I would say to put on the new rotors and call it good. Granted, I would say to also go out and get the car up to 60 mph and then do a hard brake or two. This will help wear off any unevenness of the pads and ensure you get a smooth surface to the new rotors.

 

It should be OK to use the old pads as long as they are in really good condition.
But you should roughen/sand the faces first, either with some medium grit sandpaper and a sanding block or do what I used to do years ago, rub them on a cement floor.
You need to do this so the pads have a "fresh" face to bed with the new rotors, then once the new rotors are fitted go through the bedding in process.

 

Done, thanks guys. Pulsation is gone.

 

Normally on any warranty with rotors, they only replace rotors. Pads don’t really go defective. That’s over most brands, not just Jag

 

Curious as to what brand or rotors you used as we don't hear of many rotors issues other than price of OEM.

 

R1 geomet drilled and slotted. They are generally well reviewed, so I’m taking my first experience with a grain of salt. Perhaps the drilled and slotted feature contributed, not sure. One front was barely out of spec at 0.0035, while the other was at 0.0045. Glad they were under warranty for a year though.