But for the price of new rotors versus the price of turning brake rotors - you might as well just replace them and give yourself some valuable peace of mind. To purchase new brake rotors or turn them, ah that is the question. You are wasting your money if you are fitting new brake pads on your vehicle and your rotors are seriously scored or hollowed.
It's extremely dangerous and could also cause the vehicle a total loss of brake. No one ever wants to experience total brake loss. Therefore it is strongly recommened that you replace or turn your rotors before installing any new pads. Your brake center can check the surface condition of your rotor with a straight edge to see if there is more then 0. If you do not turn or replace the rotors you will have a dangerous braking situation and your pads will become damaged.
Since this is a safety issue of the utmost importance, it is strongly recommended that you have a professional mechanic take this measurement for you. Rotors can be turned only about 1 or 2 millimeters before they become too thin for safe use and will have to be discarded and replaced. By nature of their composite, they eventually wear thin, meaning they can no longer generate the heat caused by friction as effectively and thus decreasing the ability to stop the vehicle quickly and potentially increasing the distances required to do so.
Eventually, they wear out completely, which causes many issues. Anytime you notice that your brakes simply are not working as they should, it could mean the time has come for their replacement. Be watchful and aware!
Contributing factors. While brake pads and rotors wear out eventually on any vehicle, the timing of their wear and replacement all vary based on contributing factors. Those conditions involve driving in mountainous areas with steep elevation changes that can wear brakes out quickly as well as city driving, with stop-and-go traffic that is harder on brakes.
Other factors involve the differing compounds that make up brakes and contribute to brake pad hardness. This means that hard compound brake pads last longer and soft compound brakes perform better at lower speeds, like in urban areas.
Also, too much heat can melt pad compound onto the brake rotor and reduce brake performance over time if the driving becomes too extreme.
For example, carbon-ceramic brakes last longer than standard metal brakes but need to be warmer than the alternative to be effective. The Fed Old Guys Rule. Location Florida. Any of you have your rotors cut or ground so they have a flat surface for their nice new pads? DiscusInferno Go Kart Newbie. Location Kalifornia. Just buy new rotors.
VW didn't spec too much tolerance on the rotors. The difference between a new rotor and a worn rotor is 3mm front and 2mm rear. Turning the rotors can remove material to get you into the worn rotor territory, so you would have to buy new rotors anyway. If you're trying to be price conscious, then look at Centric High Carbon. New rotors with every set of pads, or every other set of pads if they seem ok?
Long gone are the old days of wearing out pads, then getting them turned, and slapping a new set of pads on. Navi Autocross Champion. Is this true? Every car I owned the rear rotors always outlasted the lives of pad changes. Sometimes the rear rotors lasted the life of the vehicle depending on the pads I was running. Do VW rear rotors really have that little tolerance? They are warped with 37k, and I hate to think that I will have to live with wobbly braking for another 3 years. I don't want to spend money to replace the components as I know they have plenty of life in them, but the wobbling is getting on my nerves.
It depends on how you look at it. It simply takes too long for the dealer to bother with-the flat rate system doesn't work for this! Plus, there is no chance of a comeback when using new rotors, another reason to replace it all.
They will always quote for the worst and once the tech sees it, may not use new rotors, just pads. I have not seen a dealer with a lathe yet. A diesel that is highway driven never needs brakes! If you're the sort of person who warps rotors the only solution is a heavier rotor Brembos are nice, but horribly expensive.
And I don't know how much thicker a rotor the stock caliper and pads can handle. Probably not much. Gewilli, Absolutely no hard felling. This is what this forum is all about. A difference of options and kick it around a little.
We all learn, and besides no one has got personal! Well maybe I did with Ric but I was only kidding! I have yet to have a plugged tire that will not pound in short order. The next one of those idiots that tries to convince me a plug is as good as a patch.
Well let just say you may hear about me in the national news! We are getting pounded by lake effect snow tonight! See what the Q's do in the morning.
Starting to look like I"ll have 8" on the drive by morning! Hey Hondo, take your best shot, I've plugged lots of tires. GoFaster Moderator at Large. Another tidbit about warped rotors Make sure when the wheel bolts are installed, that they are installed evenly and torqued to specifications with a torque wrench, NOT by hitting each one in turn with the rattle gun.
Overtightened wheel bolts can cause brake rotors to distort! Always tighten lug nuts or wheel bolts in stages in a diagonal pattern: first finger tight, then snug, then half of specified torque, then full specified torque, then full specified torque again. Same goes for crankcase bolts, cylinder head bolts, or anything else that could be affected by warpage.
Brian P. Joined Dec 31, My personal opinion is to turn them once. Make sure, though, to wash with soap and water after turning. OK, stop laughing. The srubbing and emulsifier will wash all the little metallic particles off that will otherwise embed in your new pads. Result, squealing. Turning more than once, and you will probably be too thin, leading to premature warping. Worst case, well let's just say that it's hard to stop with a shattered rotor. As for replacing or turning only one, forget the shoelace analogy.
Would you only replace one shoe at a time?
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