Description
Mercedes CL203 W203 Engine Water Coolant Pipe Hose is an original cooling system component from the Lines, hoses and pipes group, designed for use in Mercedes vehicles. This used component allows for a technically correct replacement of a damaged section of the cooling system, while maintaining the factory fluid routing geometry and proper fitment to the engine.
Specifications and technical data
- SKU: A2038304296
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A2038304296
- Substitutable numbers: A2038304296, A 203 830 42 96, EM
- Category: Hoses, Lines & Pipes
Purpose and function in the cooling system
The presented coolant hose is responsible for the stable routing of the operating fluid between the engine components and the cooling system, which is crucial for maintaining the correct operating temperature of the power unit. The properly shaped hose path reduces the risk of kinks, overly tight bends, and unwanted vibrations, which translates into safe vehicle operation.
By maintaining the factory profile, the hose ensures:
- proper coolant flow in the engine area,
- stable connection with connectors and system components,
- reduced risk of leaks resulting from improper fitment.
Construction and fitment for Mercedes CL203 / W203
The hose has been designed specifically for use in the construction of Mercedes CL203 and W203 series, which means that its shape, connection diameters, and length are adapted to the factory layout of components in the engine compartment. Such fitment facilitates installation and allows for maintaining the original hose routing without the need to modify other elements.
As an element from the Lines, hoses and pipes group, the hose works with other cooling system components, creating a coherent and sealed fluid circuit. In practice, this means the possibility of restoring factory engine operating conditions after repair or replacement of a damaged hose.
Product condition and practical aspects
The offered hose is a used part, which in practice allows for an economical repair while maintaining the manufacturer’s original specifications. This type of solution is particularly beneficial for vehicles used on a daily basis, where a reasonable service cost is important while maintaining the correct operating parameters of the cooling system.
Using an original hose from disassembly reduces the risk of problems typical of aftermarket replacements with imprecise shapes, such as:
- improper positioning in the engine compartment,
- excessive stress on the connectors,
- collisions with other components.
Benefits of using an original coolant hose
Choosing this component allows you to maintain the consistency of the cooling system with Mercedes factory solutions. For the user, this means:
- secure fitment to the specific engine configuration in CL203 / W203 models,
- maintaining proper coolant circulation,
- reducing the risk of engine overheating resulting from leaks or hose kinks.
Thanks to this, the coolant hose is a practical solution both for current repairs and for planned cooling system maintenance when it is necessary to replace worn-out hoses.
System expansion – related components
If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional lines, flexible hoses, or rigid cooling system pipes, check the available parts in the Mercedes lines, hoses and pipes category.
To better plan your service and reduce vehicle downtime in the workshop, it is worth checking out the guide describing the impact of a wide assortment on repair speed – you can find it in the article No more weeks of waiting – how a wide assortment in one warehouse really shortens your car’s downtime at the mechanic?.






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