Zimmermann 100.3382.70 Disc Brake Rotor - Front

Zimmermann Formula Z Front Brake Rotor

The Zimmermann Formula Z brake rotor is built for high-load braking with a two-piece, floating design that supports stable performance under heat and mechanical stress. This front rotor is a direct-fit option for select Audi RS7 applications and is finished with a corrosion-resistant coating for a cleaner appearance and added surface protection.

Key Features

• Part number: 100.3382.70
• Two-piece brake disc with Alu hub floating construction
• 390 mm outer diameter, 36 mm thickness, 34.4 mm minimum thickness
• High-carbon machining for demanding braking conditions
• Coated surface with anti-corrosion finish
• ECE R90 approved
• 6/5 hole arrangement, 112 mm bolt circle, 68 mm hub bore
• Front axle application for select Audi RS7 models

Detailed Description

Zimmermann 100.3382.70 is a Formula Z front disc brake rotor engineered for vehicles that see elevated thermal load, including tuned or chassis-upgraded setups. The floating mounting design allows radial expansion under heavy braking, helping reduce heat-related stress and supporting consistent braking feel. For Audi RS7 owners searching for a front brake rotor 390x36mm, this rotor matches the specified fitment and uses a coated finish to help resist corrosion while maintaining a more refined appearance. This part cross-references Gates 18614 for the same application.

What This Rotor Helps Address

• Brake fade during repeated high-speed stops
• Heat cracking from sustained thermal load
• Corrosion on exposed rotor surfaces
• Uneven braking performance on heavily loaded front axles
• Fitment issues on select Audi RS7 front brake service applications

Installation Notes and Tips

Compatible With 2014-2018 Audi RS7, front. Confirm PR number 1LM or 1LX where listed, and verify the vehicle is equipped without ceramic brakes before installation. Check rotor thickness against the 34.4 mm minimum specification during service, and inspect the hub and mounting surfaces for cleanliness before fitting. The 112 mm bolt circle, 68 mm hub bore, and 6/5 hole arrangement should be matched to the vehicle before assembly.

Quality Assurance

Zimmermann supplies this rotor with ECE R90 approval and a coated surface finish for corrosion resistance. The Formula Z design is intended to meet the demands of high-performance street use while maintaining OE-style fitment for select Audi RS7 front brake applications.