2007 IS 250 AWD Brake Vibrates
02-23-07, 11:12 AM
#1
Lead Lap
Thread Starter
iTrader: (1)
Join Date: Feb 2007
Location: NY
Posts: 707
Likes: 0
Received 0 Likes
on
0 Posts
2007 IS 250 AWD Brake Vibrates
Hi, not sure if anyone is having this problem. If I step on the brake, my car starts the vibration on the car is greater than driving/parking. It is not a huge vibration but I can still tell the difference, I wonder if this is normal. I got a brand new car it has 14 mileages when I drove out.
02-23-07, 12:56 PM
#2
How many miles are on it now? It sounds like your rotors could be warped. The dealer should fix it under warranty, but they would probably just resurface them. If they do resurface the rotors, they will probably warp again. Try to get them to actually replace them.
Trending Topics
02-23-07, 03:11 PM
#8
Driver
Join Date: Feb 2006
Location: CA
Posts: 120
Likes: 0
Received 0 Likes
on
0 Posts
If it is your rotors, it's because there was an extremely heavy brake evnt in your cars short history. If this isn't the case and there hasn't been any heavy braking (or did someone test drive it before you bought it and do it?), then what you may be feeling are simply severely unbalanced tires that you can detect under braking only - leave it alone though, and it could cause your rotors to warp as contact with the ground is sporadic, especially under heavy braking. In the long run, it will even cause your tires to wear unevenly and feather (from yahoo: feathered or directional wear pattern where the tread feels smooth when you run your hand across it one way, but feels rough when you rub it in the opposite direction)...
Last .02 cents, if the re-balancing doesn't fix it, then I would push for a resolution as to whether it is warped rotors, damaged supsension components, etc...it will cost you extra money in the long run as your replace tires and rotors more often if you just leave it alone...
Last .02 cents, if the re-balancing doesn't fix it, then I would push for a resolution as to whether it is warped rotors, damaged supsension components, etc...it will cost you extra money in the long run as your replace tires and rotors more often if you just leave it alone...
02-23-07, 09:08 PM
#9
Lead Lap
Thread Starter
iTrader: (1)
Join Date: Feb 2007
Location: NY
Posts: 707
Likes: 0
Received 0 Likes
on
0 Posts
If it is your rotors, it's because there was an extremely heavy brake evnt in your cars short history. If this isn't the case and there hasn't been any heavy braking (or did someone test drive it before you bought it and do it?), then what you may be feeling are simply severely unbalanced tires that you can detect under braking only - leave it alone though, and it could cause your rotors to warp as contact with the ground is sporadic, especially under heavy braking. In the long run, it will even cause your tires to wear unevenly and feather (from yahoo: feathered or directional wear pattern where the tread feels smooth when you run your hand across it one way, but feels rough when you rub it in the opposite direction)...
Last .02 cents, if the re-balancing doesn't fix it, then I would push for a resolution as to whether it is warped rotors, damaged supsension components, etc...it will cost you extra money in the long run as your replace tires and rotors more often if you just leave it alone...
Last .02 cents, if the re-balancing doesn't fix it, then I would push for a resolution as to whether it is warped rotors, damaged supsension components, etc...it will cost you extra money in the long run as your replace tires and rotors more often if you just leave it alone...
02-23-07, 10:19 PM
#11
Tech Info Resource
iTrader: (2)
I think they just need to be properly bedded. That's what I would do first.
02-23-07, 10:26 PM
#12
While I agree that they weren't properly bedded to begin with, I haven't ever heard of someone undoing something like this. I've read articles about how improperly bedded brakes can cause uneven distribution of pad material on the rotors which can cause them to seem warped, but those articles didn't say what the solution was.
02-23-07, 11:14 PM
#13
Tech Info Resource
iTrader: (2)
Scuff the rotors with an aggressive pad briefly (like Hawk Blues) to remove the old pad material, put the pads you want to run back in, and bed them properly. Or just do a series of low speed stops that don't generate alot of heat to literally grind off the material, then bed them in (again) so you get an even coating.
The only time this doesn't work is when there are black spots from overheating on the rotor. The black spots are cementite, and once this happens the rotor will never be the same again no matter how many times you try to turn or grind it.
The only time this doesn't work is when there are black spots from overheating on the rotor. The black spots are cementite, and once this happens the rotor will never be the same again no matter how many times you try to turn or grind it.
02-24-07, 10:42 AM
#14
Lead Lap
Thread Starter
iTrader: (1)
Join Date: Feb 2007
Location: NY
Posts: 707
Likes: 0
Received 0 Likes
on
0 Posts
Scuff the rotors with an aggressive pad briefly (like Hawk Blues) to remove the old pad material, put the pads you want to run back in, and bed them properly. Or just do a series of low speed stops that don't generate alot of heat to literally grind off the material, then bed them in (again) so you get an even coating.
The only time this doesn't work is when there are black spots from overheating on the rotor. The black spots are cementite, and once this happens the rotor will never be the same again no matter how many times you try to turn or grind it.
The only time this doesn't work is when there are black spots from overheating on the rotor. The black spots are cementite, and once this happens the rotor will never be the same again no matter how many times you try to turn or grind it.
02-24-07, 11:55 AM
#15
I haven't wash my car yet.
Yes when I apply the brake, the steering wheel kinda shake with a little vibration. but if I park or accelerate the shaking goes away.
I never heavy brake my car, I always do it firmly. If the tires are unbalance I would get that exclaimation mark isn't it? when the PSI goes under a certain point.
Yes when I apply the brake, the steering wheel kinda shake with a little vibration. but if I park or accelerate the shaking goes away.
I never heavy brake my car, I always do it firmly. If the tires are unbalance I would get that exclaimation mark isn't it? when the PSI goes under a certain point.