VW Volkswagen Tiguan AX1 1.5 Petrol Engine Coolant Hose Line Tube 5QF122157AB

VW Volkswagen Tiguan AX1 1.5 Petrol Engine Coolant Hose Line Tube is an original cooling system component from Volkswagen, designed for use in a petrol engine. It ensures stable coolant flow between components, which translates into a safe operating temperature for the power unit and predictable vehicle performance under various load conditions.

Specifications and technical data

• SKU: 5QF122157AB
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 5QF122157AB
• Substitutable numbers: 5QF122157AB, 5QF 122 157 AB
• Fuel type: Petrol
• Category: Coolant Hoses

Purpose and function in the cooling system

The presented hose belongs to the Cooling system hoses and pipes category and is responsible for the controlled flow of coolant in the circuit of the VW Tiguan AX1 1.5 petrol engine. A properly selected hose minimizes the risk of local overheating, air locks, and uncontrolled leaks, which directly impacts the durability of the engine and its accessories.

The element was designed as part of the Volkswagen OEM system, ensuring that its geometry, connection diameters, and routing are perfectly matched to the factory engine bay layout. This facilitates installation and eliminates the need for additional modifications or the use of adapters.

Benefits of using an original cooling hose

Using an original coolant hose in the VW Tiguan AX1 1.5 Petrol allows for maintaining the factory operating parameters of the system. Key advantages include:

• Stable coolant flow – the properly selected diameter and shape of the hose support uniform circulation throughout the entire circuit.
• Proper fit to mounts – the hose works with factory brackets and clamps, which reduces vibrations and stress.
• Consistency with the petrol engine design – the element is intended for operation in the cooling system of a petrol-powered unit, taking its thermal characteristics into account.
• Verification via part numbers – thanks to assigned part numbers and interchangeable numbers, it is easy to confirm compatibility with a specific vehicle configuration.

Condition of the item and installation aspects

The hose is offered as a used part, which is a cost-effective solution while maintaining compliance with Volkswagen's factory specifications. Before installation, it is recommended to check this type of component for leaks, material flexibility, and the condition of the connection ports to ensure trouble-free operation after replacement.

During installation, it is recommended to:

• check the mating surfaces of the ports in the cooling system,
• use appropriate hose clamps with the correct operating range,
• thoroughly bleed the system after refilling with fresh coolant.

Technical support and additional information

To precisely select the hose for a specific version of the VW Tiguan AX1 1.5 Petrol, it is worth using the OEM part number, interchangeable numbers, and the Volkswagen brand marking visible in the technical specifications section. This helps avoid ordering errors and speeds up the service process.

If you are planning a comprehensive repair or upgrade of the engine area in your Volkswagen and need other elements from the same group, such as additional lines, return hoses, or sections connecting to the radiator, check the available parts in the Volkswagen cooling system hoses and pipes category.

When working on the cooling system during high temperatures, it is also worth paying attention to the condition of the radiator, fans, and the overall patency of the circuit. Practical tips on operation and cost-effective repair can be found in the guide "Summer heat vs. cooling system: used radiators and fans as a guarantee of savings", which will help you better plan the service of the entire cooling system.