Normal Brake Wear???
CF Senior Member
Joined: Feb 2006
Posts: 23,313
Likes: 25
From: Tucson Arizona
Maybe I'm just suspicious by nature but if you had the car there for an oil change how the hell would they know you need new pads and rotors? Typcially, the oil change guys at the dealership aren't master mechanics. Removing all 4 wheels, inspecting pads and mic'ing the rotors isn't part of an oil service. I could be wrong but I suspect they're simply looking to pad the bill. BEZ06 gave you the measurements. Take the car to an independent shop (some offer free brake inspections) or go back to the dealership and have them show you the pads and rotors are bad....see what condition they're in and verify the measurements. Good luck!
Racer
Joined: Jul 2011
Posts: 370
Likes: 0
From: Alabama
Maybe I'm just suspicious by nature but if you had the car there for an oil change how the hell would they know you need new pads and rotors? Typcially, the oil change guys at the dealership aren't master mechanics. Removing all 4 wheels, inspecting pads and mic'ing the rotors isn't part of an oil service. I could be wrong but I suspect they're simply looking to pad the bill. BEZ06 gave you the measurements. Take the car to an independent shop (some offer free brake inspections) or go back to the dealership and have them show you the pads and rotors are bad....see what condition they're in and verify the measurements. Good luck!
Drifting
Joined: Feb 2010
Posts: 1,527
Likes: 34
However, there is portable rotor machine that can mount onto wheel hub, to resurface rotor, with compensation for bearing wear factored in to provide an accurate mated run out when finished, but most shops don't have it!
For safety, when comes to brakes, it is recommended to maintain rotor mass as much as possible.
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,104
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
I consider rotor half-life to determine if they are worth turning. If they will clean up prior to the middle of their usable range, they are acceptable, otherwise replace them. Let the machinist know your expectations and what you'll accept if not met.
With Z51/F55 rotors, it's imperitive to have experienced personell doing the job, so they aren't cut wrong or too much. Interrupted cuts (holes and/or slots) require a different technique than plain rotors.
With Z51/F55 rotors, it's imperitive to have experienced personell doing the job, so they aren't cut wrong or too much. Interrupted cuts (holes and/or slots) require a different technique than plain rotors.
Thread Starter
Pro
Joined: Aug 2005
Posts: 546
Likes: 1
From: Rancho Cucamonga California
Maybe I'm just suspicious by nature but if you had the car there for an oil change how the hell would they know you need new pads and rotors? Typcially, the oil change guys at the dealership aren't master mechanics. Removing all 4 wheels, inspecting pads and mic'ing the rotors isn't part of an oil service. I could be wrong but I suspect they're simply looking to pad the bill. BEZ06 gave you the measurements. Take the car to an independent shop (some offer free brake inspections) or go back to the dealership and have them show you the pads and rotors are bad....see what condition they're in and verify the measurements. Good luck!
