Zimmermann 150.2946.32 Disc Brake Rotor - Rear

Overview of Zimmermann Disc Brake Rotor 150.2946.32

The Zimmermann disc brake rotor 150.2946.32 is engineered for precision braking performance on select BMW and Toyota models. Designed as a two-piece brake disc, it offers enhanced heat dissipation and durability for vehicles such as the BMW 330i and Toyota GR Supra.

• Two-piece brake disc design with alu hub riveted construction
• High-carbon machining for improved wear resistance
• Coated surface to protect against corrosion
• Outer diameter of 345 mm and thickness of 24 mm
• Bolt hole circle diameter of 112 mm with 6/5 hole arrangement
• Hub bore diameter of 67 mm
• ECE R90 approved inspection tag ensuring quality compliance
• Minimum thickness of 22.4 mm for safe operation
• Weight of 9.1 kg for balanced performance

Technical Specifications and Features

This Zimmermann disc brake rotor features a two-piece design combining a high-carbon machined rotor with an aluminum hub riveted for strength and heat management. The rotor measures 345 mm in outer diameter and 24 mm in thickness, with a minimum thickness specification of 22.4 mm to maintain braking efficiency and safety. The bolt hole circle diameter is 112 mm, arranged in a 6/5 hole pattern, and the hub bore diameter is 67 mm, ensuring precise fitment on compatible vehicles.

The coated surface provides corrosion resistance, extending the rotor's service life under various driving conditions. The rotor height is 64 mm, contributing to proper alignment and brake system integration. This part carries the ECE R90 inspection tag, confirming it meets European safety and performance standards.

Compatible Vehicles and Applications

This Zimmermann disc brake rotor 150.2946.32 is compatible with a range of BMW and Toyota models, including but not limited to:

• BMW 330i, 330i xDrive, M340i, M340i xDrive
• BMW 530e, 530e xDrive, 530i, 530i xDrive
• BMW 540d xDrive, 540i, 540i xDrive, 550i xDrive
• BMW 640i xDrive Gran Turismo, 740e xDrive, 740i, 740i xDrive
• BMW 745e xDrive, 745Le xDrive, 750i, 750i xDrive, 750Li, 750Li xDrive
• BMW 840i, 840i Gran Coupe, 840i xDrive, 840i xDrive Gran Coupe
• BMW X3, X4, X5, X6, X7, Z4
• Toyota GR Supra

Common Issues Addressed by This Brake Rotor

• Brake rotor warping due to heat stress
• Uneven brake pad wear caused by rotor surface imperfections
• Corrosion and rust buildup reducing braking efficiency
• Brake noise and vibration from worn or damaged rotors
• Reduced braking performance from rotor thickness below safety limits

Installation Notes and Tips

When installing the Zimmermann disc brake rotor 150.2946.32, ensure the rotor surface and hub are clean and free of debris. Verify the bolt hole circle and hub bore dimensions match the vehicle specifications. Use proper torque settings for mounting bolts to avoid rotor distortion. It is recommended to replace brake pads simultaneously to maintain optimal braking performance. After installation, perform a brake system test to confirm proper operation and absence of noise or vibration.

Quality Assurance and Warranty

Zimmermann disc brake rotors are manufactured to meet strict quality standards, including ECE R90 approval, which certifies compliance with European safety and performance regulations. The high-carbon machining and coated surface contribute to durability and corrosion resistance. While specific warranty details may vary, Zimmermann products typically come with manufacturer-backed warranties covering defects in materials and workmanship.