03G121065AA Engine Coolant Pipe Iron Pipe for Volkswagen (VW) Audi Vehicles

03G121065AA is a water pipe  used in Volkswagen (VW) and Audi vehicles. This component is a critical part of the engine's cooling system, responsible for circulating coolant to maintain the engine's optimal operating temperature.

• Part Number: 03G121065AA

• Application: Volkswagen (VW) and Audi vehicles (specific models and years may vary)

• Function: Circulates coolant through the engine and radiator to regulate engine temperature.

This water pipe is commonly used in vehicles with the 2.0L TDI (CR) diesel engine. To confirm compatibility, check the following:

1. Vehicle Model: Verify the specific model (e.g., VW Golf, Jetta, Passat, Tiguan, or Audi A3, A4, Q5, etc.).

2. Model Year: Check the year of your vehicle.

3. Engine Code: Confirm the engine code (e.g., CBEA, CCTA, or CJAA for 2.0L TDI engines).

Replacing awater pipe typically involves:

1. Draining the cooling system.

2. Removing the old water pipe  and cleaning the mounting surface.

3. Installing the newwater pipe  with a new gasket or sealant.

4. Refilling the cooling system and bleeding air from the system.

5. Checking for leaks and ensuring proper operation.

If you're not experienced with this type of repair, it’s recommended to consult a professional mechanic, as improper installation can lead to cooling system failures.