TRW Automotive AfterMarket DF4818S Brake Disc

TRW Automotive AfterMarket DF4818S Brake Disc

The TRW DF4818S is a high‑performance, ventilated brake disc engineered for rear suspension systems of premium vehicles. Designed with precision machining and advanced metallurgy, this component delivers superior stopping power, heat dissipation, and durability under demanding driving conditions.

Key Features & Technical Specifications

• Diameter: 330 mm – optimal for a wide range of rear‑wheel vehicles.
• Thickness: 22 mm – balances strength and weight, ensuring consistent braking performance.
• Ventilation: Dual‑channel design – promotes rapid heat removal, reducing brake fade during prolonged use.
• Material Composition: High‑strength alloy steel with a thermal‑stabilized coating to resist oxidation and wear.
• Surface Finish: Polished, anti‑corrosion treatment for extended service life.
• Compatibility: Engineered for rear wheels of Audi A6 (4F2/4F5), Audi C6, Skoda, VW, Seat, and other models sharing the same hub dimensions.
• Weight: Approximately 3.8 kg per disc, contributing to reduced unsprung mass.

Performance Advantages

The DF4818S incorporates a multi‑layer ventilation system that channels hot air away from the braking surface, maintaining optimal temperature during aggressive driving or heavy traffic. This design reduces the risk of brake fade, ensuring consistent stopping power even under extreme conditions.

Its alloy steel construction offers high tensile strength and excellent fatigue resistance, allowing the disc to withstand repeated thermal cycling without cracking or warping. The anti‑corrosion coating protects against rust in humid climates, while the polished surface reduces friction with brake pads, extending pad life.

Installation & Compatibility

Installing the DF4818S is straightforward for technicians familiar with standard rear brake systems:

1. Remove the existing disc and inspect the hub for damage or wear.
2. Clean the hub surface to ensure proper contact.
3. Align the new disc using the factory mounting bolts, ensuring even torque distribution.
4. Reinstall brake pads and perform a brake fluid flush if necessary.

Because the DF4818S matches OEM dimensions for many rear‑wheel models, it can be swapped without modifying calipers or suspension components. This makes it an ideal choice for both OEM replacement and aftermarket upgrades.

Maintenance & Longevity

Regular inspection of brake discs is essential to maintain safety and performance:

• Check for uneven wear or scoring on the braking surface.
• Inspect the ventilation channels for debris that could impede airflow.
• Ensure pad thickness remains above manufacturer specifications.

The DF4818S’s robust construction and protective coating typically extend service life to over 50,000 km, depending on driving habits and environmental conditions. When paired with compatible brake pads, the entire rear braking system can remain reliable for many years without significant degradation.

Applications & Vehicle Compatibility

The disc’s design is tailored to a range of high‑performance vehicles:

• Audi A6 (4F2/4F5) – both Avant and Limousine variants.
• Audi C6 – rear wheel models from the early 2000s to mid‑2010s.
• Volkswagen, Skoda, Seat – models sharing similar hub dimensions.
• Other OEM vehicles that require a 330 mm, 22 mm ventilated disc.

Because the DF4818S is manufactured to exacting tolerances, it fits seamlessly into these platforms without requiring additional modifications.

Why Choose TRW DF4818S?

• Reliability: TRW’s reputation for quality engineering ensures that each disc meets stringent performance standards.
• Safety: Enhanced heat dissipation and structural integrity reduce the likelihood of brake failure.
• Cost‑Effectiveness: Long service life and low maintenance requirements translate to lower total ownership costs over time.
• Versatility: Compatibility with multiple vehicle models makes it a practical choice for workshops and enthusiasts alike.

In summary, the TRW DF4818S Brake Disc delivers exceptional braking performance, durability, and ease of installation. Whether you’re restoring an older Audi A6 or upgrading a modern rear‑wheel vehicle, this component provides the confidence that comes with reliable stopping power.