Tech-Tune

The time has come to change my front rotors so I've decided to upgrade them to the larger 2-piece ones that come with the P030 package.
I stumbled on a pair of 390mm 2-piece rotors that were on clearance for only $1218. Being they list for over $1000 each I decided to jump on the last pair (part number for rotors 230 421 0912).

Despite my best internet hunting I couldn't find the taller caliper bracket, so I'm having my machine shop fabricate caliper spacers to accommodate for the larger diameter rotors.
I also just order longer mounting bolts to be used with the spacers.

I'll post some pics once I get started. I'm pretty much doing the same upgrade that JHM offers for their RS4 380mm rotor upgrade (see pic).

whyask

Following this as im getting ready to start down this road ! Great color scheme on the ride btw Good luck !

Tech-Tune

Thanks, should be fun. All the parts should be arriving by weeks end, so I'll have some pics to post.

On a side note, the company I purchased the rotors from have one more set in stock at the same price.
If anyone is interested I can PM you the link.

miraclewhip_cls

Your car is bad A@# LUV IT

RacingBrake

Hi,

We are glad to be the sponsor of this forum and offer the most comprehensive brake upgrade for your Mercedes including CLS55 & CLS63:

http://www.racingbrake.com/category-s/7136.htm

The CLS55 (05-07) has the same front as C63 (non black series):

Front (360x36mm):
http://www.racingbrake.com/Two-piece...ONT-p/2141.htm

Same front rotors for CLS63 (07-12), but for sports package (P030) the size increased to 390x36mm which is the same as C63 black series:

http://www.racingbrake.com/Two-piece...ONT-p/2237.htm

The rear has been the same for all years and models (both CLS55 & CLS63)

http://www.racingbrake.com/Two-piece...EAR-p/2188.htm

These rotors are made with the most advanced braking technology in design and metallurgy, they are light weight and built for lasting performance and guaranteed to improve your braking performance.

We will match any advertised prices including dealer's close out price on first first set of order so he can post a review on the weight saving and the benefit from the driving and handling improvement.

Let us know if you have any questions.

Tech-Tune

Rotors are in. One rotor is slightly scuffed on the hat, the others disk is slightly discolored but with the wheels on you will not be able to notice these flaws.
To be honest I could care less... I got them for a great price.

Rotor's diameter are a hair less than 15" (which makes them 380mm, not 390mm) and weigh 28.5lbs each. I'll weigh the stock ones once their off the car.

Waiting just waiting on the bolts and spacers.

///AMG4EVER

Tech-Tune - nice find.

FWIW - the 030 rotors are 380mm for the 55 and 390mm for the 63.

Can you please PM the contact info on where you got these?

Tech-Tune

Just sent you the link... Check your PM box.

dyno

well done .
will you use stock pads or their specific ?

looking at your sigh, what's the 85TB ? long time not here and maybe I missed something ..

Tech-Tune

I have a brand new set of Akebonos I will be using.
85TB = 82mm Mercedes throttle body that's been bored to 85mm

dyno

suppose your happy with it .. then, wonder what's all that complaining I m reading everywhere about issues with 82tb

I installed one set of perf pads but didn't have time to test it properly so can't tell what difference.

btw, if you'll ever decide to upgrade rear discs, I have one left 360mm from sl65

Tech-Tune

Eventually I'm going to do the rears as well. PM me what your asking for your rotor, though shipping's gonna be incredibly costly being their coming from Europe.

BTW, my TB gave me a few issues in the beginning, but I raised the idle (via star) and Jerry revised the file and now it runs perfectly.

dyno

I took it as spare for the case I couldn't find the rear bros of my slr front's
or the fitment wouldn't work.

hope to finally find the time to fit all that and, if it will work, that rotor could go and I'll tell you.
now it's just among all my toys

..it's a 360x26mm, weighs exactly 10.560gr, hand brake bell and everything included.



ps: sometime I think at that tb... just beause went crazy finding all parts for mine that wouldn't want to remove it. except, if HP difference is great enough but that's not clear.
so, you had to fit a new bigger butterfly valve .. and you have a stock or 80mm snout ?

Tech-Tune

Longer HD caliper bolts... nothing exciting here.
Hoping the spacers arrive tomorrow so I can get started.

turbocad6

man have you confirmed that those caliper bolts will actually work? I'm doing a conversion myself right now and I'm using these calipers with a 390 mm rotor and I too have to raise the caliper, in my case 20 mm. the bolts that hold the caliper to the bracket are M12 x1.50 thread, the picture you show looks to be M12 X 1.75 thread... I can't find any 90 mm long M12 x 1.5 socket head bolts in a grade 12.9 alloy steel, which these really need to be.

I've searched high and low and with every industrial bolt supplier I can find and the right size in the right thread can't be found anywhere as far as I can find. you really should use a high grade bolt for these, especially since on top of it you are spacing them too which will add even more stress, also your spacers need to be fairly precise, don't just stack some washers. the bolts you show here don't appear to be a high grade bolt but I can only tell so much from pics... you should be careful about just using any bolt that just fits, these really need to be high grade hardware

Tech-Tune

If you have an CLS 219, these are the ones you'll need either one of these:
part number: 91292A222 or 91303A288
website: http://www.mcmaster.com/#socket-head-cap-screws/=n6izbp

turbocad6

my calipers are from an S55 so maybe they are different? but they are the same brembo 8 piston caliper, the part #'s you show are both M10 x 1.5 bolts, but mine are larger M12 x 1.5. curious to see if these fit on yours, if they do then I would guess the whole difference is just in the bracket itself is threaded different, I believe the caliper itself is the same difference must only be in the bracket?

Tech-Tune

I tested one of the new bolts and its on the money. Curious as to why Brembo would use different size bolts on the same calipers...
I used a 10mm hex to remove mine. Are you sure yours are M12's?

turbocad6

yeah man, the threads on the socket head bolts that bolt the caliper to the bracket on mine are def M12, they are the same thread as the lug nut bolts, I have threaded the lug nut bolts directly into this bracket, there def M12... weird

Tech-Tune

My local machine shop called letting me know my spacers were ready. Will pick them up and post pics tomorrow.

Tech-Tune

Finally picked up the spacers, they're 1.25" wide and 11mm tall with the centers drilled out for the bolts.

Gonna mock everything up over the weekend to make sure the measurements I took were accurate. I'll post some before and after pictures once I get started.

Tech-Tune

Finally had time to complete the upgrade.
The shims needed to be trimmed a little for the rotors to clear.

Tech-Tune

Still breaking in the rotors and new pads
Here's a few before and after pics, though the 20" wheels still make the 380mm rotors look small.
I just ordered some new AMG logo stickers because the previous owner of the car put these on crooked.

Tech-Tune

Does anyone happen to know there's a Mercedes 2 piece rotor that would fit the rear of the CLS?
Was thinking the SL P030's might fit but would like to make certain before purchasing.

cm60k

Excellent brake upgrade...,

i think SLR is the only model with 2 piece rear Rotor, but not sure about that...!!

ZAYED,,