Mercedes W212 Petrol OM274 Coolant Pipe EGR Cooler Line A2742032302

Mercedes W212 Petrol OM274 Coolant Pipe EGR Cooler Line is an original cooling system component designed for OM274 petrol engines in E-Class W212 models. This specialized pipe is responsible for the controlled flow of coolant in the area of the radiator and EGR valve, supporting stable operating temperatures for the power unit and proper exhaust gas recirculation. Thanks to its factory geometry and fitment, it represents a reliable service solution for cooling system repairs in petrol Mercedes vehicles.

Specifications and technical data

• SKU: A2742032302
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2742032302
• Substitutable numbers: A2742032302, A 274 203 23 02
• Fuel type: Petrol
• Category: Coolant Hoses

Purpose and function in the cooling system

The EGR coolant pipe in the OM274 engine operates in the immediate vicinity of the power unit, connecting the coolant circuit with the EGR module. It is responsible for:

• stabilizing the temperature of exhaust gases directed for recirculation,
• maintaining the proper operating temperature of the petrol engine,
• correct heat dissipation from the radiator and EGR area,
• reducing the risk of overheating under higher loads.

A properly selected coolant pipe in this location is crucial for the trouble-free operation of the cooling system and maintaining stable combustion parameters in the petrol unit.

Benefits of using an original Mercedes pipe

The component from the Mercedes range ensures the preservation of factory coolant flow characteristics and compatibility with the OM274 engine design. The main advantages include:

• dedicated geometry tailored to the W212 engine bay,
• preservation of original mounting points and pipe routing,
• compatibility with the cooling system and EGR module in petrol versions,
• consistency with the factory cooling system design, with no modifications required.

As a result, the pipe can be integrated into the existing system as a direct replacement, which facilitates service work and reduces vehicle downtime.

Characteristics of the used component

The offered pipe comes from a group of used parts, which allows for an economical repair of the cooling system while maintaining the manufacturer's original specifications. This type of solution is particularly beneficial for:

• maintenance repairs in older W212 models,
• reducing service costs while using OEM parts,
• selecting components with known compatibility with the OM274 engine.

Choosing a used EGR coolant pipe allows you to maintain the integrity of the cooling system without the need to use universal replacements with uncertain fitment.

Technical support and additional information

Before purchasing, it is worth verifying the compatibility of the pipe with the specific petrol engine configuration in your Mercedes E-Class. Data such as the engine code, production year, and body version can be helpful to ensure full compatibility with the existing cooling system.

If you are planning a comprehensive repair or upgrade of the cooling system area in your Mercedes and need other components from the same group, such as additional pipes, hoses, or coolant connectors, check the available parts in the Mercedes cooling system pipes and hoses category.

To better understand how thermal conditions affect the durability of pipes, hoses, and other cooling components, it is worth reading the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings, which describes the practical aspects of operating and servicing cooling systems in high temperatures.