What it is
A disc brake pad set (also called brake pads, friction pads, or brake linings) is the pair of pads that press on your brake rotors to slow and stop the car. The Mercedes-Benz C250 uses disc pads at the front and rear. When you press the pedal, hydraulic pressure squeezes the pads against the rotors, turning your car's motion into heat and bringing you to a stop. (Mercedes-Benz USA Media)
Fitment basics
The C250 is part of the W204 C-Class sold in North America for the 2012-2014 model years (sedan and coupe). Always match pads to your exact year, body style, and axle (front vs. rear), and confirm by VIN to avoid the wrong shape. You can check your VIN details with the U.S. government's VIN decoder, or use your Mercedes owner's manual and service info to verify what you have. (, vpic.nhtsa.dot.gov)
Wear warning
Your C250 can show a ÒCheck Brake Pad WearÓ message in the instrument cluster when the pad wear threshold is reached. That message means the pads (or wear sensor) have hit their limit; have the brakes inspected and replaced as needed. (static.oneweb.mercedes-benz.com)
When to replace
Replace pads when friction material is low, you hear grinding, feel pulsing, or notice longer stops. A grinding sound often means the pads are overdue and may be damaging the rotors. Don't wait-worn pads increase stopping distance. (Consumer Reports)
Pad materials
Common choices for the C250 include:
* Ceramic pads - usually quieter with less dust; good for daily driving and clean wheels. Many modern ceramic formulas are copper-free.
* Semi-metallic pads - strong initial ÒbiteÓ and heat tolerance; may make more dust and noise.
Pick the feel you want (quiet/clean vs. strong bite), and ensure they meet current environmental rules (see ÒCopper-free rulesÓ below). (bridgestonetire.com, raybestos.com)
Friction codes
Copper-free rules
Brake pads sold in the U.S. are moving to very low copper levels to protect waterways. EPA's Copper-Free Brake Initiative set targets of <5% copper by 2021 and ²0.5% by 2025, an approach adopted by states like Washington and California. Many pads carry a ÒLeafMarkÓ (A, B, or N) showing compliance; ÒNÓ is the 0.5% level. (US EPA, ecology.wa.gov, Department of Toxic Substances Control)
Safety & standards
There's no single U.S. federal safety standard for aftermarket brake pads; federal rules regulate whole brake systems (FMVSS 105/135, etc.). In Europe, ECE R90 sets performance and quality requirements for replacement brake linings, and since 2016 many discs are also covered. Seeing R90 on packaging means the pad passed defined tests compared with the original reference. (NHTSA, EUR-Lex, ATE International)
Rotor care
Rotors have a Òminimum thicknessÓ marking (often stamped on the hat or edge). If they're at or below that number, replace the rotors-don't just fit new pads. This protects braking performance and heat management. (PowerStop Brakes)
Bedding-in (break-in)
After installation, bed the pads to lay down an even transfer layer on the rotors. A typical process uses a series of moderate stops with cool-down in between; follow the pad maker's exact steps. Proper bedding reduces noise, vibration, and uneven feel. (racetechnologies.com, NHTSA Static)
DIY or pro?
Brakes are safety-critical. If you lack tools or experience, use a qualified technician and follow the factory manual for your model year. Mercedes' owners site and manuals explain warning messages, maintenance schedules, and safety notes. (mbusa.com)
What's in a set
Most Òdisc brake pad setsÓ include pads for both wheels on one axle (either front or rear). Some kits include shims or stainless abutment clips; wear sensors may be separate. Always replace pads on both sides of the axle at the same time for even braking. (NHTSA Static)
Quick install tips
* Replace pads per axle, not one side only.
* Inspect/clean slides and hardware; replace worn clips.
* Check rotors for thickness and runout; replace if below spec or heavily grooved.
* After reassembly, pump the brake pedal to seat the pads before driving.
* Bed the brakes as recommended. (, PowerStop Brakes, racetechnologies.com)
Helpful links
For owner info, warning messages, and safety notes, see the Mercedes-Benz C-Class (W204) owner's manual (2012 example). For U.S. VIN details, use NHTSA's VIN decoder. For copper-free policy and LeafMark guidance, see EPA, Washington Dept. of Ecology, and California DTSC resources. For performance standards, read ECE R90. For bedding-in, see Brembo's guidance. (static.oneweb.mercedes-benz.com, vpic.nhtsa.dot.gov, US EPA, ecology.wa.gov, Department of Toxic Substances Control, EUR-Lex, racetechnologies.com)
Frequently Asked Questions
For a Mercedes-Benz C250 disc brake pad set, choose pads that fit your exact year/axle, pick the material that matches your driving (ceramic vs. semi-metallic), confirm modern copper compliance (LeafMark ÒNÓ), replace pads per axle, inspect rotors against the minimum thickness, and bed the brakes properly after installation. Use your VIN and owner's manual to double-check fit and follow the simple maintenance and safety steps above for confident stopping. (vpic.nhtsa.dot.gov, static.oneweb.mercedes-benz.com)
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