The Genuine VW / Audi Brake Hose Kit - 178017 is a comprehensive kit of products designed specifically for use in a car's brake system. This kit includes three essential components: a brake hose, a brake line, and a brake hose fitting. The brake hose is responsible for carrying brake fluid from the master cylinder to the brake calipers, while the brake line connects the brake hose to the brake calipers. The brake hose fitting is used to securely attach the brake hose to the brake line. This kit is compatible with both VW and Audi vehicles, providing a reliable and high-quality solution for maintaining and repairing the brake system in these cars.