AUDI A4 B9 (8W2, 8WC) 2.0 TDI 140kW 05.2015-. AUDI A4 B9 (8W2, 8WC) 2.0 TDI 140kW 05.2015- 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.