Genuine OEM Audi Engine Coolant Overflow Hose, part number 5Q0121058AC. This hose is responsible for routing excess coolant from the engine cooling system to the overflow reservoir, helping to maintain optimal system pressure and prevent overheating. It is typically located in the front engine bay. Weighing approximately 0.1 kg, this hose is made from durable, heat-resistant rubber. Choosing genuine OEM ensures the correct routing geometry, material composition, and resistance to engine fluids for reliable, leak-free operation.

Catalogue entry: HOSE.

Fitted with: N90686902 CLAMP, N90687001 CLAMP.