Zimmermann 150.2903.52 Disc Brake Rotor - Front

Overview of Zimmermann Disc Brake Rotor 150.2903.52

The Zimmermann disc brake rotor 150.2903.52 is engineered for precision braking performance on select BMW models. Designed with a perforated surface and high-carbon machining, this rotor offers reliable heat dissipation and consistent stopping power for vehicles such as the BMW 320i, 330i, and 435i.

• Perforated brake disc type for improved cooling
• High-carbon machining enhances durability and wear resistance
• Coated surface to protect against corrosion
• 340 mm outer diameter with 30 mm thickness for optimal braking surface
• Compatible bolt hole circle of 120 mm with 6/5 hole arrangement
• Hub bore diameter of 79 mm ensuring precise fitment
• Minimum thickness of 28.4 mm to maintain safety standards
• Weight of 10.9 kg balancing strength and performance

Technical Details and Specifications

The Zimmermann 150.2903.52 disc brake rotor features a 340 mm outer diameter and a thickness of 30 mm, providing a substantial braking surface for effective stopping power. Its perforated design allows for enhanced heat dissipation, reducing the risk of brake fade during demanding driving conditions. The rotor is machined from high-carbon material, which improves wear resistance and extends service life. A coated surface protects the rotor from corrosion, maintaining performance over time. The bolt hole circle measures 120 mm with a 6/5 hole arrangement, and the hub bore diameter is 79 mm, ensuring compatibility with specific BMW models. The rotor’s height is 73 mm, and it maintains a minimum thickness of 28.4 mm to meet safety requirements.

Compatible BMW Models

This disc brake rotor is compatible with a range of BMW vehicles, including but not limited to the 118i, 120i, 228i, 230i, 235i, 320i, 328i, 330i, 335i, 340i, 428i, 430i, 435i, 440i, and M-series variants such as the M135i and M240i. It supports both standard and xDrive models, as well as Gran Coupe and GT versions where applicable. The part number 150.2903.52 ensures precise fitment for these models, providing reliable braking performance tailored to BMW specifications.

Common Issues Addressed by Zimmermann Disc Brake Rotor

• Brake fade caused by overheating during extended braking
• Uneven brake pad wear due to rotor surface imperfections
• Corrosion and rust buildup reducing braking efficiency
• Vibration or pulsation during braking from warped rotors
• Reduced stopping power from worn or undersized rotors

Installation Notes and Tips

When installing the Zimmermann 150.2903.52 disc brake rotor, ensure the rotor surface is clean and free of any contaminants before mounting. Verify the bolt hole circle and hub bore dimensions match the vehicle specifications. It is recommended to replace brake pads simultaneously to maintain optimal braking performance. Proper torque settings should be applied to the mounting bolts to avoid rotor warping. After installation, perform a brake bed-in procedure to ensure consistent contact between pads and rotor.

Quality Assurance and Warranty

Zimmermann disc brake rotors are manufactured to meet strict quality standards, including compliance with ABE No. Kba 60872 certification. The high-carbon machining and coated surface contribute to long-lasting durability and corrosion resistance. While specific warranty details are not provided, Zimmermann products are known for their adherence to OEM quality and reliability standards, making them suitable replacements for BMW vehicles requiring precise braking components.