Vehicle: 99 Mercedes E320; 2000 Lexus Es300; 93 BMW 325i; 94 Ford Explorer
Location: Pewaukee, WI
Posts: 23
rotor question
I bought 2 rotors the other day, knowing that the rears were in need of replacing. The rears are not very smooth at all. The fronts are much smoother.... but they have a somewhat deep lip on the edge of the rotor. Is this normal? Considering these details... which should I be replacing? I can only afford to replace 2 at this time. Thanks!
Sounds like its time to replace all of them. Rotors are fairly cheap as long as you stay away from the dealer. I recently bought some brembo (drilled/slotted) rotors and axxis ceramic pads for less than $300.
the fronts smooth?
R/R the rears and pads
Check pad thickness on the fronts and if the rotors are mirror smooth you can cross hatch sand them with 120-150 grit sand paper wash them and dry with brake cleaner and just install new pads.
ohlord
Vehicle: 99 Mercedes E320; 2000 Lexus Es300; 93 BMW 325i; 94 Ford Explorer
Location: Pewaukee, WI
Posts: 23
The rears are rough, the fronts are smooth. There are new pads in the front. So is it normal to have that lip on the edge of the rotor surface? The rears dont have that. Is that from a previous turning. So the rears would be a priority? I am not sure of the whole story here because I just bought this car. I really appreciate the input!
on some brand rotors is normal,and likely unless they were foolish the rotors have not been turned as it is not advised on these rotors.Not enough material to saftely turn
ohlord
akebono pads from tirerack if you want less dust.
changed the plugs yet?you are due
also the trans needs to have the fluid and filter changed.
dipsticks and spark plug boot removal tool for sale(me) when you need them
Normally when a service shop dose brake work they will turn all the rotors if there is enough meat on them. The front brakes do a majorty of the stopping so the lip is an indication of wear. If there is enough meat on them and you can find a place to turn them that may be cheaper than buying new ones.
In 25 years of Mercedes ownership, I have never had a rotor turned nor had a need to do so. When they get below spec you replace them.
Len
Now this is the most sensible answer so far. NEVER turn the rotor on Benz or BMW as you will cause problems with the brakes, be it noise or warped rotor. Trust me its not a good idea.
If the rotors are within the safety limit then replace the pads, but file the edges of the new pads and this will stop any contact with the lip on the old disc.
said above,well almost all of us....
The rotors are not thick enough to turn,don't do it even if you could find a shop stupid enough to try.
And most definitely do not waste your money on cross drilled and slotted rotors,on the street they serve no purpose,they do not improve braking,they do run the risk of cracking and warping.
ohlord
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