Brake rotor info needed
Thread Starter
MBWorld Fanatic!
Joined: Aug 2013
Posts: 1,267
Likes: 56
From: Alberta, Canada
'18 GLE63S AMG /'19 PORSCHE TURBO S / '09 CORVETTE ZR1 /'14 LEXUS RX350/'16 RAV4 Ltd
Brake rotor info needed
I have ordered new pads from the dealer and will replace soon..can anyone advise spec tolerance for replacement of rotors ?...48000 kms
tia
tia
Thread Starter
MBWorld Fanatic!
Joined: Aug 2013
Posts: 1,267
Likes: 56
From: Alberta, Canada
'18 GLE63S AMG /'19 PORSCHE TURBO S / '09 CORVETTE ZR1 /'14 LEXUS RX350/'16 RAV4 Ltd
Have found this
front: new 36mm
wear limit 34mm
rear: new 26mm
wear limit 24mm
2mm certainly doesn't sound like much...I've heard MB has little tolerance for replacing rotors...now I can see why
front: new 36mm
wear limit 34mm
rear: new 26mm
wear limit 24mm
2mm certainly doesn't sound like much...I've heard MB has little tolerance for replacing rotors...now I can see why
Super Member
Joined: Aug 2012
Posts: 595
Likes: 38
From: Boston area
2019 GLS450
I've found that BMW & Mercedes both usually want the rotors replaced at same time as pads. Was explained that when replacing the 1st set of pads, the rotors may still be within spec, but during the life of the 2nd set of pads, the rotors can wear down down to below spec.
Member
Joined: Sep 2011
Posts: 119
Likes: 3
From: Indianapolis
car
If pressed on this, the dealers will usually say you may get some vibration or noise if you don't change the rotors every time. Never found that to be a problem, and I frequently change pads and rotors in my German cars. I almost find that changing rotors every other pad change works well, and my rotors are always still above minimum spec.
Junior Member
Joined: Jul 2015
Posts: 41
Likes: 12
From: Atlanta, Georgia
Current: 2025 GLS 580; Sold: 2020 X5 M50i || 2014 ML350
I've found that BMW and Mercedes dealers want rotors replaced with every pad change. This is ridiculous. If the rotors are more than minimum spec when the pads are replaced, you're good to go. The tolerances are there with considerable margin for safety to take into account rotor wear.
If pressed on this, the dealers will usually say you may get some vibration or noise if you don't change the rotors every time. Never found that to be a problem, and I frequently change pads and rotors in my German cars. I almost find that changing rotors every other pad change works well, and my rotors are always still above minimum spec.
If pressed on this, the dealers will usually say you may get some vibration or noise if you don't change the rotors every time. Never found that to be a problem, and I frequently change pads and rotors in my German cars. I almost find that changing rotors every other pad change works well, and my rotors are always still above minimum spec.
