Buy OEM 2003 Audi Part # 8K0819373D (8K0-819-373-D). HVAC Heater Hose. Heater Hose - Repair or Replace A heater hose transfers heat from your engine’s cooling system to your vehicle’s

Fits A4, A5, A5 Cabriolet, A5 Coupe, Q5, S4, S5, S5 Cabriolet, S5 Coupe, SQ5

Heater Hose - Repair or Replace
A heater hose transfers heat from your engine’s cooling system to your vehicle’s heater. If the hose is leaking, ruptured, or appears to be on the verge of failure, bring your 2003 Audi to our Audi service department for repair.