ATE 424212 Disc Brake Rotor - Rear

ATE Original Rear Brake Rotor for Mercedes-Benz

The ATE Original Rotor 424212 is a rear disc brake rotor built for select Mercedes-Benz applications, including CL550, CL600, S350, S400, S550, and S600 models. It uses alloyed high-carbon material, a vented full-cast construction, and a rust-resistant coating to support consistent braking performance and long-term service life.

Key Features

• ATE Original Rotor line from Continental Automotive Systems
• Part number 424212
• Alloyed / high-carbon rotor material
• Vented, full-cast disc brake rotor design
• Rust-resistant coating for added surface protection
• Non-directional disc finish with smooth surface type
• 5-bolt hole configuration
• Outside diameter: 320.00 mm
• Nominal thickness: 24.00 mm; discard thickness: 21.40 mm
• Inside diameter: 180.00 mm; height: 58.20 mm

Product Details

ATE Original Rotor 424212 is engineered with the same process discipline associated with Continental Automotive Systems brake manufacturing. The coated rotor surface helps resist corrosion during storage and service, while the vented, full-cast design supports heat management under repeated braking. This rotor is a direct-fit rear brake rotor for select Mercedes-Benz CL-Class and S-Class vehicles, including rear brake rotor applications for Mercedes-Benz CL550, Mercedes-Benz CL600, Mercedes-Benz S550, Mercedes-Benz S600, Mercedes-Benz S350, and Mercedes-Benz S400.

This part cross-references Brembo 09.A818.11 and Zimmermann 400.3661.20 for the same application. The ATE Original Rotor 424212 is built to meet or exceed European OEM specifications on listed fitments, making it a practical choice for rear brake service on Mercedes-Benz CL550 and Mercedes-Benz S550 applications.

What This Rotor Helps Address

• Brake pulsation caused by worn or uneven rotor surfaces
• Reduced braking consistency from heat-stressed rear rotors
• Corrosion on exposed rotor surfaces
• Noise related to rotor finish irregularities
• Service replacement for rotors at or near discard thickness

Installation Notes and Tips

Verify rotor dimensions, bolt pattern, and rear-position fitment before installation. Confirm the rotor thickness is above discard specifications and inspect pads, calipers, and hub surfaces for wear or contamination during service. For best results, clean the rotor surface before installation and follow the vehicle manufacturer’s brake bedding procedure after replacement.

Quality Assurance

ATE is the brake brand of Continental Automotive Systems, a major original equipment brake system manufacturer. The Original Rotor line reflects that OE-focused engineering approach, with premium materials and coated rotor construction used across the product range. Part number 424212 is listed for rear applications on select Mercedes-Benz models from 2007-2014.