Zimmermann 400.3698.20 Disc Brake Rotor - Front

Zimmermann 400.3698.20 Front Brake Rotor

The Zimmermann 400.3698.20 is a front disc brake rotor for select Mercedes-Benz SUVs and performance variants. It combines a slotted and perforated design with a coated surface and high-carbon machining for consistent braking performance and corrosion resistance.

Key Features

• Part number: 400.3698.20
• Front disc brake rotor for select Mercedes-Benz GLE and GLS applications
• Slotted / perforated brake disc type for improved pad bite and heat management
• Coated surface helps resist corrosion and supports cleaner long-term appearance
• High-carbon machining for stable braking characteristics
• Outer diameter: 390 mm
• Thickness: 36 mm; minimum thickness: 34 mm
• Hub bore: 67 mm
• Bolt hole circle: 112 mm
• Hole arrangement: 8/5
• Weight: 17.8 kg

Detailed Description

Zimmermann brake rotors are manufactured to dimensions and material quality aligned with original equipment specifications, making this rotor a direct-fit replacement for the front axle on selected Mercedes-Benz GLE400, GLE43 AMG, GLE63 AMG, GLE63 AMG S, GLS500, GLS550, and GLS63 AMG models. The 400.3698.20 rotor uses a slotted and perforated face to support braking consistency under load, while the coated finish helps protect the rotor surface from corrosion. This part number is also referenced as 400.3698.20 in catalog listings for the same application.

This part cross-references Brembo 09.B805.11 and Gates 18472 for the same application.

What It Helps Address

• Brake vibration or uneven rotor contact on the front axle
• Corrosion on exposed rotor surfaces
• Heat buildup during repeated braking
• Reduced pad bite from worn or glazed rotor surfaces
• Front brake service needs on Mercedes-Benz GLE and GLS models

Installation Notes and Tips

• Verify rotor diameter, thickness, hub bore, and bolt pattern before installation.
• Confirm vehicle-specific fitment details, especially AMG package and sport brake system notes.
• Check minimum thickness before reuse or replacement decisions.
• Inspect pads, calipers, and wheel hubs during brake service to ensure even contact.
• Follow manufacturer torque specifications and bedding procedures after installation.

Quality Assurance

Zimmermann standard brake rotors are produced as equivalent-quality replacement parts aligned with original-fit specifications. The coated finish reflects Zimmermann’s Coat Z anti-corrosion approach for improved surface protection and appearance.