Which model years do the Endless Brake Pads for W221 S63 fit?

All of the years Endless lists, 2008 through 2013, with no split by engine. The Endless Brake Pads for W221 S63 sedans therefore suit an early car with the naturally aspirated M156 as well as a later one with the M157 biturbo. The W222 generation that followed for 2014 changes both shapes, to EIP162 front and EIP255 rear.

How many pads come in an S63 front set?

Eight. Endless supplies its EIP226 front shape as an eight-piece set, four pads for each front caliper, so one Front set still covers the whole front axle and nothing else needs to be ordered. Front sets are priced higher than rear sets in every compound on this listing, so check the axle selected before adding the set to the cart.

Which Endless compound suits a W221 S63 on a track day?

MX72 Plus, for a car on street tires at an occasional event. Endless rates it to 750C, or 1382F, and gives it a consistent pedal release lap after lap. An S63 that is on circuit most months suits CC-Rg, which holds high bite to 800C, or 1472F, and works with the factory ABS under hard use, though Endless calls it noisy on the street.

Is SSM Plus the right pad for a chauffeur-driven S63?

Yes. SSM Plus keeps dust and noise low and lasts well, and its braking comes in smoothly as pedal pressure builds instead of with a sharp first bite, which suits calm, unhurried driving. For an owner-driver who uses the V8 hard, MX72 is the better road compound, with more friction from cold and still little dust.

Is there a discount for buying front and rear together?

No. Endless has no combo price for EIP226 and EIP227, so the Front and Rear Set costs the same as one front set and one rear set in the same compound. It is still the simplest way to do all four wheels in one order, and for a Racing Group choice you name the compound in the order notes.

Endless Brake Pads for W221 Mercedes-Benz S63 AMG

Endless’s Brake Pads for W221 Mercedes-Benz S63 AMG cover both engines the big sedan carried between 2008 and 2013: the naturally aspirated 6.2-liter M156 V8 in early cars and the 5.5-liter M157 biturbo in later ones. Endless lists a single pair for the whole run, and its spec sheet names both shapes after the W221 S63 AMG. EIP226 sits at the front and comes as an eight-piece axle set, four pads to each caliper, with EIP227 at the rear. The range covers four street compounds and seventeen racing compounds per axle, and our pick for an S63 driven briskly is MX72.

Features

Endless pad shapes EIP226 front and EIP227 rear, both named after the W221 S63 AMG on the Endless spec sheet
Eight pieces in each EIP226 front set, four per front caliper
SSM Plus, MX72, MX72 Plus and CC-Rg for road and track-day use
Seventeen racing compounds: the fifteen-strong Racing Group, W003 and S330
Every compound offered as a Front set, a Rear set or a Front and Rear Set

Choosing a Compound

An S63 used as a daily sedan or driven by a chauffeur belongs on SSM Plus, the cleanest and quietest compound Endless prices for these shapes; there is no SSS for them. MX72 is the step for an owner who drives the V8 hard on open roads. MX72 Plus covers track days on street tires and CC-Rg covers regular circuit use, at the cost of some road noise. The racing compounds are beyond what a road-driven S63 needs and suit a car prepared for events.

Every figure below is Endless’s own. Friction is the compound’s average friction coefficient, so a higher number gives more bite for the same pedal pressure. The rotor range is the band of rotor temperatures Endless designs the compound to work in, so choose by the temperatures your car will see.

Street and street-to-track compounds

SSM Plus (street): non-asbestos; friction 0.33-0.40; rotor range 0-550C (32-1022F). Low dust, low noise and long life. Braking builds with pedal pressure rather than a sharp first bite, for drivers who want clean wheels and a quiet car.
MX72 (street to light track): ceramic carbon metal; friction 0.37-0.47; rotor range 50-700C (122-1292F). Minimal noise and dust, strong friction at low temperatures, reduced rotor wear and a better pedal feel than a typical semi-metallic pad. Endless’s dual-duty compound for a road car that sees the occasional track day.
MX72 Plus (street to circuit): ceramic carbon metal; friction 0.39-0.47; rotor range 50-750C (122-1382F). Holds its braking force to higher temperatures than MX72, with stable control and a consistent pedal release. Endless aims it at cars on street tires that run on track.
CC-Rg (track day, street capable): ceramic carbon metal; friction 0.38-0.45; rotor range 50-800C (122-1472F). High initial bite across a wide temperature range, even when cold, and modulation that works with the factory ABS under hard use. Endless notes it is noisy on the street; it is the step up from MX72 Plus for regular track days.

Racing compounds

Each option below is one choice in the Choose Compound menu. For a group, name your compound in the order notes and Bulletproof Automotive confirms it with your order. Every racing compound needs Endless’s bedding procedure: at 70 to 80 percent of normal pedal effort, bring the rotors gradually to 400C (752F), then let them cool below 150C (302F) before hard use.

Racing Group

ME22: dual braking style; friction 0.33-0.38; rotor range 150-800C (302-1472F). Developed from ME20 with lower friction for control, for light to mid-weight cars or heavier cars on slower circuits. Endless rates it for street and track.
ME20: trail-braking style; rotor range 150-800C (302-1472F). High, stable friction at high temperature with low wear, developed for touring cars and rally. Works front or rear, with stock or racing ABS.
N35S: trail-braking style; rotor range 300-800C (572-1472F). Quick, sharp and responsive, with stable modulation under high temperature and load. Endless’s flagship rally compound, also run in FIA GT, and its suggested starting point for drivers new to Endless racing pads.
N05U: trail-braking style; friction 0.46-0.53; rotor range 300-800C (572-1472F). More bite than N35S, popular in sprint-focused Porsche Cup cars.
N05S: trail-braking style; friction 0.45-0.53; rotor range 300-800C (572-1472F). Immediate high friction with little pedal effort, used in Japanese rally cars without brake boosters and in European and Australian sprint racing.
N30C: friction 0.50-0.60; rotor range 300-800C (572-1472F). High initial bite, gentle on rotors and low wear. A rally compound for cars without a brake booster.
MS20: friction 0.32-0.38; rotor range 150-800C (302-1472F). A low-friction rear pad with a flat torque curve and long life, for club racing cars.
MS25: friction 0.36-0.42; rotor range 150-800C (302-1472F). Warms up gradually even under heavy braking. Endless pairs it with a higher-friction pad to prevent lock-up.
MS35: friction 0.45-0.53; rotor range 300-800C (572-1472F). Mid to high initial bite with good modulation and control, a sprint pad for a wide range of conditions.
ML20A: friction 0.30-0.33; rotor range 300-800C (572-1472F). A rear compound with lower initial bite to prevent rear lock-up, for lightweight GT cars.
ML35A: friction 0.30-0.38; rotor range 300-800C (572-1472F). Slightly lower friction with excellent modulation and wear, for lighter GT cars.
ML40A: friction 0.32-0.47; rotor range 300-800C (572-1472F). Moderate friction that resists lock-up, an endurance compound.
S55G: Endless publishes no figures. It suits lightweight and front-wheel-drive cars, and the rear of front-wheel-drive cars, with high controllability.
PC35: Endless publishes no figures. More bite than N35S with high braking force and a stable pedal; Endless’s base pad for rally raid.
S41S: Endless publishes no figures. Developed for GT cars, including GT3, under high brake loads.

Sold as their own options

W003: trail-braking style; friction 0.40-0.45. Similar in character to N35S with better wear, tough and stable at high temperature with a linear torque curve; run in rally, touring cars, ALMS and PWC. Circuit only: Endless does not recommend it for the street and notes high rotor wear when cold.
S330: trail-braking style; friction 0.60-0.70; rotor range 300-850C (572-1562F). High friction for sprint racing, with good control at high levels and without accelerating rotor wear; run in Super GT, stock cars and GT2 and GT3 sprint racing.

Applications

Mercedes-Benz S63 AMG: W221 | 2008-2013

Notes

Each Front or Rear set of Brake Pads for W221 S63 AMG sedans covers both wheels on one axle
Not for the W222 S63 from the 2014 model year, which Endless lists on EIP162 front and EIP255 rear pads, sold on its own listing
The W221 S65 AMG and the C216 CL63 AMG take the same EIP226 and EIP227 shapes and have their own listings
For the factory brakes; a car converted to an aftermarket big brake kit takes the pads for those calipers

Frequently Asked Questions

Which model years do the Endless Brake Pads for W221 S63 fit? All of the years Endless lists, 2008 through 2013, with no split by engine. The Endless Brake Pads for W221 S63 sedans therefore suit an early car with the naturally aspirated M156 as well as a later one with the M157 biturbo. The W222 generation that followed for 2014 changes both shapes, to EIP162 front and EIP255 rear.
How many pads come in an S63 front set? Eight. Endless supplies its EIP226 front shape as an eight-piece set, four pads for each front caliper, so one Front set still covers the whole front axle and nothing else needs to be ordered. Front sets are priced higher than rear sets in every compound on this listing, so check the axle selected before adding the set to the cart.
Which Endless compound suits a W221 S63 on a track day? MX72 Plus, for a car on street tires at an occasional event. Endless rates it to 750C, or 1382F, and gives it a consistent pedal release lap after lap. An S63 that is on circuit most months suits CC-Rg, which holds high bite to 800C, or 1472F, and works with the factory ABS under hard use, though Endless calls it noisy on the street.
Is SSM Plus the right pad for a chauffeur-driven S63? Yes. SSM Plus keeps dust and noise low and lasts well, and its braking comes in smoothly as pedal pressure builds instead of with a sharp first bite, which suits calm, unhurried driving. For an owner-driver who uses the V8 hard, MX72 is the better road compound, with more friction from cold and still little dust.
Is there a discount for buying front and rear together? No. Endless has no combo price for EIP226 and EIP227, so the Front and Rear Set costs the same as one front set and one rear set in the same compound. It is still the simplest way to do all four wheels in one order, and for a Racing Group choice you name the compound in the order notes.

About Endless

Endless is a Japanese brake manufacturer that designs everything in-house and manufactures domestically in Japan, holding surface accuracy to 1/1000mm under strict quality control. The company developed its own laminated sintered wire-mesh backing plate and ceramic carbon rotors, and it proves its parts in competition, running its own factory motorsport program and supplying winning teams across Japanese and European racing. From pads and slit rotors to forged and monobloc calipers, brake fluid, and lines, Endless builds braking systems trusted on both street and circuit.

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