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help, perforated and ventilated rear brake discs

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Old Aug 3, 2021 | 02:37 PM
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ml 350 bluetec
Question help, perforated and ventilated rear brake discs
Good afternoon, a question, someone has mounted our ml 350 bluetec, perforated and ventilated rear brake discs 330mm, do you have any photos?
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Old Aug 3, 2021 | 07:37 PM
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Ml350 bluetec
Just to clarify, are you asking if anyone has installed 330 mm ventilated and drilled rear rotors? And if yes do they have pictures?
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Old Aug 3, 2021 | 07:42 PM
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ml 350 bluetec
Si, correcto, perdon por la traduccion.
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Old Aug 3, 2021 | 07:53 PM
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Ml350 bluetec
Are the 330 mm x 32mm disc even available to fit the ML 350 Bluetec? My 2014 ML 350 Bluetec came with 325mm x 14mm solid disc. Unless you have the option package with the larger disc, meaning if you currently have the 325mm it's not a simple upgrade to the 330mm.
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Old Aug 4, 2021 | 09:06 AM
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2013 ML550 US spec. Air+Offroad pkg
I have ML550 with factory vent and drilled discs...not sure if different setup from ML350.
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Old Aug 4, 2021 | 11:25 AM
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Originally Posted by Leetom
I have ML550 with factory vent and drilled discs...not sure if different setup from ML350.
I know the ML550's front rotors are cross drilled 14.8" (375mm), but what are your rear cross drilled rotors size - 13"(330mm) or 13.6"(345mm)?
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Old Aug 4, 2021 | 12:42 PM
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2013 ML550 US spec. Air+Offroad pkg
I dont know without taking off wheels. Rears are vented and drilled from factory. Early 2013 model I special ordered, they went to non-drilled shortly after to save cost I suspect.
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Old Aug 4, 2021 | 12:51 PM
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Originally Posted by Leetom
I dont know without taking off wheels. Rears are vented and drilled from factory. Early 2013 model I special ordered, they went to non-drilled shortly after to save cost I suspect.
Yes, the non-drilled they went to from late 2013 MY on, for '14 ML550 and '16-'19 GLE43, are 13"(330mm).
Someone with 2012 ML550 claimed to have 13.6"(345mm) rear cross-drilled rotors.
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Old Aug 4, 2021 | 01:29 PM
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2013 ML550 US spec. Air+Offroad pkg
Based on part number 166 423 04 12, looks like mine is 330×22mm. Found specs on germanautoparts.com. $100/ea. That part was good up thru build 12/2012. Good for ML350 wiith sport pkg...so Id suspect they can be swapped out.
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Old Aug 4, 2021 | 02:12 PM
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Yes, I see no reason why 300mm solid rotors p/n 166 423 01 12 could not be swapped out for 330mm cross drilled p/n 166 423 04 12.

Before doing so, just want to make sure that the poster from post #17 in this tread https://mbworld.org/forums/m-class-w...ml#post8151910 is incorrect. Because if he's correct (which I doubt) I'd rather put 345mm(p/n 166 423 03 12) vs 330mm cross drilled rears.
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Old Aug 4, 2021 | 06:20 PM
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Ml350 bluetec
Originally Posted by Leetom
I have ML550 with factory vent and drilled discs...not sure if different setup from ML350.
Your ML 550 has the larger brake rotors etc... vs the ML 350.
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Old Aug 5, 2021 | 10:43 AM
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ml 350 bluetec
Thank you very much, very good post, I continue to investigate the measures for changing discs.
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Old Aug 5, 2021 | 11:49 AM
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Originally Posted by Marcosvg
Thank you very much, very good post, I continue to investigate the measures for changing discs.
Please, let us know if or when you do it.
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