AUDI A4 B9 (8W2, 8WC) 40 TFSI Mild Hybrid 150kW 06.2020-. AUDI A4 B9 (8W2, 8WC) 40 TFSI Mild Hybrid 150kW 06.2020- Rear, Left, Right. Made with high-quality stainless steel fittings and stainless steel braided hose, these brake lines are designed for increased reliability, durability, and performance.