Brake upgrade for 2014 cls550
08-25-2019, 07:16 PM
#26
Senior Member
Thread Starter
Yes that’s where I went it’s literally five minutes from me. And I was referred there by my tire guy when he was trying to balance the wheels he noticed all four rims were bent and said to go there but my calipers red paint are already cracking and I went by and they said they would fix it for free so that was cool. There is another place I was thinking about taking my wife’s Escalade rims to have powder coated , just to kind of know how they stack up to dr rim, I think the name is just bent rim repair something. Deep down I’d like to just buy the brembo or amg calipers lol
08-28-2019, 01:32 PM
#27
Junior Member
@Dblok1113 Hey man, hope all is well. If you're considering Brake upgrades, considering @RacingBrake 's stuff. Heard plenty of good things about them!
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Dblok1113 (08-10-2020)
08-28-2019, 03:00 PM
#28
Senior Member
Thread Starter
@Dblok1113 Hey man, hope all is well. If you're considering Brake upgrades, considering @RacingBrake 's stuff. Heard plenty of good things about them!
08-10-2020, 09:01 PM
#29
Hey guys quick question. Was able to get my hands on 2013 cls 63 amg calipers all around. Looking for new rotors, anyone know the exact rotors that might fit? And what's the biggest possible diameter I could go with?
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Dblok1113 (08-10-2020)
08-10-2020, 11:01 PM
#30
Senior Member
Thread Starter
thats awesome, is it a direct swap ? I heard the calipers need to be shaved down but that might be a e63 not sure where i saw that let us know how it goes
08-10-2020, 11:45 PM
#31
https://mercteil.com/products/22?mai...it=12&offset=0
Per this website the 63 amg will fit the cls https://mercteil.com/products/22?mai...it=12&offset=0
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Dblok1113 (08-11-2020)
08-12-2020, 09:57 PM
#32
Senior Member
Thread Starter
From what I researched and what I was told yeah just need to get the cls 63 rotors.
https://mercteil.com/products/22?mai...it=12&offset=0
Per this website the 63 amg will fit the cls https://mercteil.com/products/22?mai...it=12&offset=0
https://mercteil.com/products/22?mai...it=12&offset=0
Per this website the 63 amg will fit the cls https://mercteil.com/products/22?mai...it=12&offset=0
08-12-2020, 10:16 PM
#33
so you have cls 63 calipers from a 13 and your car is a 14 ? Or is yours a 13 as well, from what I can tell they are different in 12-13 than they are on the 14 63 amgs? Not sure though as I’m ignorant to the fitting but I’m really trying to do this conversion thanks for help
08-13-2020, 06:29 AM
#34
Senior Member
Thread Starter
09-28-2020, 11:51 PM
#35
Junior Member
Just a fyi the cls63 amg Calipers will not bolt to stock cls550 spindles. The bolts are larger for amg set up. I am currently running cls63amg front spindles ,calipers and stock rotors. The rears are a direct bolt on.I am however having a issue with steering rack accepting the steering angles associated with the wider track the spindles bring. Car is currently in shop getting new rack installed and coded. I will follow with an update once i hear back from shop.
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09-29-2020, 07:55 AM
#36
You have to determine what you're hoping to accomplish with a brake "upgrade". Shorter stopping distances? Better "feel"? Better resistance to heat induced brake fade?
These cars already have pretty stout brakes, though I do think they lack feel. In normal street driving, even "spirited" street driving, you're unlikely to over heat them to the point they fade. But if you do manage that then switching to a harder compound pad will likely help (and might also help with "feel"), but at the expense of low speed initial bite. Harder compound pads work better when they're hot, not so much when they're cold so at lower speeds you'll find you'll need more pedal pressure than was necessary with the OE pads. As far as the discs go, the difference between brands is negligible when it comes to the disc's ability to influence how the car stops, and I would suggest if there is a measurable difference you'll never see it on the street. Higher quality discs may have less run out, may be better balanced, might have better painted finishes, but they're not going to make your whip stop any faster. The only exception are discs that have a metal compound that is softer than OE discs; they sacrifice long service life for higher friction.
Brake feel is influenced by many things; the master cylinder, the ABS module, the flexible lines, the calipers and how much they flex, the compound of the pads, the condition of the fluid. Assuming the fluid is in good condition and there is no air in the system, the biggest bang for your buck is going to be harder compound pads - but with their associated trade off when cold.
On the street the single biggest factor in hauling these cars down from speed to a dead stop in as short a distance as possible (and assuming brake fade isn't an issue at that moment) is the tires. With our completely OE brake systems you likely already know what happens at any speed when you crush the brake pedal; the ABS kicks in. And that means only one thing, the tires have reached the limit of their adhesion to the road surface. Spending money on calipers/pads/discs/lines etc won't slow or halt your car any faster if the real limitation is at the tire contact patches. Instead, spending money on a set of performance summer tires, with their softer compound rubber, will.
These cars already have pretty stout brakes, though I do think they lack feel. In normal street driving, even "spirited" street driving, you're unlikely to over heat them to the point they fade. But if you do manage that then switching to a harder compound pad will likely help (and might also help with "feel"), but at the expense of low speed initial bite. Harder compound pads work better when they're hot, not so much when they're cold so at lower speeds you'll find you'll need more pedal pressure than was necessary with the OE pads. As far as the discs go, the difference between brands is negligible when it comes to the disc's ability to influence how the car stops, and I would suggest if there is a measurable difference you'll never see it on the street. Higher quality discs may have less run out, may be better balanced, might have better painted finishes, but they're not going to make your whip stop any faster. The only exception are discs that have a metal compound that is softer than OE discs; they sacrifice long service life for higher friction.
Brake feel is influenced by many things; the master cylinder, the ABS module, the flexible lines, the calipers and how much they flex, the compound of the pads, the condition of the fluid. Assuming the fluid is in good condition and there is no air in the system, the biggest bang for your buck is going to be harder compound pads - but with their associated trade off when cold.
On the street the single biggest factor in hauling these cars down from speed to a dead stop in as short a distance as possible (and assuming brake fade isn't an issue at that moment) is the tires. With our completely OE brake systems you likely already know what happens at any speed when you crush the brake pedal; the ABS kicks in. And that means only one thing, the tires have reached the limit of their adhesion to the road surface. Spending money on calipers/pads/discs/lines etc won't slow or halt your car any faster if the real limitation is at the tire contact patches. Instead, spending money on a set of performance summer tires, with their softer compound rubber, will.
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Dblok1113 (09-29-2020)
09-29-2020, 09:26 AM
#37
Senior Member
Thread Starter
I was wondering same thing and have been thinking about the renntech brake upgrade with the lines and pads and
update : I already gotta get new rotors and pads after one year for the front. I’m thinking of racing brake just to try something different. Will update
update : I already gotta get new rotors and pads after one year for the front. I’m thinking of racing brake just to try something different. Will update
Last edited by Dblok1113; 09-29-2020 at 09:40 AM.
09-29-2020, 09:56 AM
#38
Just a fyi the cls63 amg Calipers will not bolt to stock cls550 spindles. The bolts are larger for amg set up. I am currently running cls63amg front spindles ,calipers and stock rotors. The rears are a direct bolt on.I am however having a issue with steering rack accepting the steering angles associated with the wider track the spindles bring. Car is currently in shop getting new rack installed and coded. I will follow with an update once i hear back from shop.
09-30-2020, 08:44 PM
#39
Junior Member
You are going to need to check clearance with new caliper mounted to spindle. The amg hubs are wider than the cls550 which would not clear the amg rotors. This is why I had to go with amg spindles and amg tie rod ends
09-30-2020, 08:50 PM
#40
Junior Member
Just a fyi the cls63 amg Calipers will not bolt to stock cls550 spindles. The bolts are larger for amg set up. I am currently running cls63amg front spindles ,calipers and stock rotors. The rears are a direct bolt on.I am however having a issue with steering rack accepting the steering angles associated with the wider track the spindles bring. Car is currently in shop getting new rack installed and coded. I will follow with an update once i hear back from shop.
I finally have power steering again. The issue was inside the steering rack there is a angle sensor and the tech beat on the old spindle to get the old tie rods out rather than using the appropriate tool.THis in turn severed the fragile wire inside and caused the electric steering to go out. New rack is almost $3,000 plus 800 install and alignment. If you or a tech decide to do front end work make sure you use the removal tool.
Last edited by blaise; 09-30-2020 at 08:55 PM.
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cls5504matic (09-30-2020)
09-30-2020, 09:04 PM
#41
09-30-2020, 10:02 PM
#42
Junior Member
The Brake calipers, rotors, and spindles, I bought from a friend of mine who parts out amg cars here locally. Tie rod ends and brake pads I bought new from mercedes. Around $4k total for parts. Definitely well worth it... the car stops on a dime. total night and day difference. No brake fade at all.
09-30-2020, 10:15 PM
#43
The Brake calipers, rotors, and spindles, I bought from a friend of mine who parts out amg cars here locally. Tie rod ends and brake pads I bought new from mercedes. Around $4k total for parts. Definitely well worth it... the car stops on a dime. total night and day difference. No brake fade at all.
that is awesome.
I’d be interested in selling the brakes or providing leads for him off tunedmercedes.com. Maybe buying some too. Do you need to do tie rods for the new calipers?
For me i think i need to make some money to feed this MB habit. I really think this a great platform. I liked how the AMG drove. But i actually like the full air suspension and it’s a really nice GT. I dont see myself upgrading for a while, this might be a future classic. I totally get doing new brakes and getting to 700whp.
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Dblok1113 (10-01-2020)
09-30-2020, 11:23 PM
#44
Junior Member
that is awesome.
I’d be interested in selling the brakes or providing leads for him off tunedmercedes.com. Maybe buying some too. Do you need to do tie rods for the new calipers?
For me i think i need to make some money to feed this MB habit. I really think this a great platform. I liked how the AMG drove. But i actually like the full air suspension and it’s a really nice GT. I dont see myself upgrading for a while, this might be a future classic. I totally get doing new brakes and getting to 700whp.
I’d be interested in selling the brakes or providing leads for him off tunedmercedes.com. Maybe buying some too. Do you need to do tie rods for the new calipers?
For me i think i need to make some money to feed this MB habit. I really think this a great platform. I liked how the AMG drove. But i actually like the full air suspension and it’s a really nice GT. I dont see myself upgrading for a while, this might be a future classic. I totally get doing new brakes and getting to 700whp.
10-13-2020, 03:45 PM
#45
Just a fyi the cls63 amg Calipers will not bolt to stock cls550 spindles. The bolts are larger for amg set up. I am currently running cls63amg front spindles ,calipers and stock rotors. The rears are a direct bolt on.I am however having a issue with steering rack accepting the steering angles associated with the wider track the spindles bring. Car is currently in shop getting new rack installed and coded. I will follow with an update once i hear back from shop.
what part of the hub is too wide?
i was under the impression the knuckles were almost i denticle except for the larger caliper mounting holes and that the AMG have a smaller dist place then the regular 550 because of the caliper size and that you can just cut the dust plate down?
sorry for my ignorance
11-08-2020, 02:58 AM
#46
Junior Member
what part of the hub is too wide?
i was under the impression the knuckles were almost i denticle except for the larger caliper mounting holes and that the AMG have a smaller dist place then the regular 550 because of the caliper size and that you can just cut the dust plate down?
sorry for my ignorance
i was under the impression the knuckles were almost i denticle except for the larger caliper mounting holes and that the AMG have a smaller dist place then the regular 550 because of the caliper size and that you can just cut the dust plate down?
sorry for my ignorance
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cobra357 (02-22-2023)
11-08-2020, 03:07 AM
#47
Junior Member
11-27-2020, 07:13 PM
#48
Also very interested in this, would love to swap some 63 brakes on my 550.
Mostly for looks, I hate that Mercedes used a floating caliper in the rear. Even my friends 2004 Lexus LS has a fixed 2-piston and it just looks much better
Mostly for looks, I hate that Mercedes used a floating caliper in the rear. Even my friends 2004 Lexus LS has a fixed 2-piston and it just looks much better
12-19-2020, 01:26 AM
#49
Also, I found another CLS with AMG brakes on it;
You can clearly see that they are a fixed caliper in the rear. Still need to save up for this upgrade but I am definitely going to tackle this when budget allows. Even with just a stage 1 tune stock brakes feel a bit weak.
You can clearly see that they are a fixed caliper in the rear. Still need to save up for this upgrade but I am definitely going to tackle this when budget allows. Even with just a stage 1 tune stock brakes feel a bit weak.
12-19-2020, 11:47 AM
#50
MBWorld Fanatic!
You guys are overthinking this way too much.
It is a simple rear swap. Fronts are more difficult, which is why I didn't even attempt to do it. Just coat both front and rear and it will look great.
It is a simple rear swap. Fronts are more difficult, which is why I didn't even attempt to do it. Just coat both front and rear and it will look great.
