Mercedes W203 Windscreen Washer Bottle Tank Reservoir A2038600360

Mercedes W203 Windscreen Washer Bottle Tank Reservoir is an original component of the windshield cleaning system, designed for the W203 series models. Thanks to its factory design, it ensures proper supply to the washer system and stable mounting in the body compartment, which translates into safe and predictable wiper operation during daily use. This is a practical solution for users who want to maintain consistency with the Mercedes factory specification and avoid issues with fitting aftermarket replacements.

Specifications and technical data

• SKU: A2038690020
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2038600360
• Substitutable numbers: A2038600360, A 203 860 03 60, A2038690020, A 203 869 00 20
• Category: Washer Pumps, Reservoirs & Nozzles

Purpose and function in the washer system

The washer reservoir in the Mercedes W203 is responsible for storing washer fluid and supplying it steadily to the pumps and nozzles. The appropriate geometry and capacity of the component allow for:

• maintaining the proper fluid level under various driving conditions,
• secure connection of hoses and washer system accessories,
• reducing the risk of air entering the system when fluid levels are low.

Thanks to a design consistent with the manufacturer's specifications, the reservoir works with factory mounts and equipment, which facilitates service and future inspections.

Original OEM fitment

Mercedes W203 Windscreen Washer Bottle Tank Reservoir is a component from the Washer fluid reservoirs, pumps, and nozzles group, designed in accordance with the vehicle manufacturer's requirements. This means:

• retaining factory mounting points in the body,
• compatibility with original pumps and electrical connectors,
• correct routing of washer fluid hoses for the front and potentially rear windshield, if the system is equipped with one.

Selection based on the OEM number and interchangeable part numbers allows for precise verification of compatibility with your car's specific equipment version, minimizing the risk of installation issues.

Characteristics of the used component

The offered reservoir comes from the secondary market, which is a cost-effective solution for users looking for parts at a reasonable price while maintaining the original specification. Using this component allows you to:

• maintain consistency with the factory washer system,
• replace a damaged or leaking reservoir without the need for modifications,
• preserve the correct routing of hoses and accessories in the body compartment.

Choosing an original component from dismantling is particularly important for models where the reservoir geometry is strictly matched to the structural layout of the body.

Benefits of using an original washer reservoir

Replacing a damaged reservoir with an original component from the same model series brings a number of practical benefits:

• Stable washer system operation – proper positioning of ports and pump sockets reduces the risk of leaks.
• Easier installation – no need to adjust mounts or fabricate brackets.
• Consistency with service documentation – facilitates diagnostics and maintenance in the future.

For workshops and individual users, this means shorter repair times and a lower risk of complaints related to part mismatch.

Related system components and additional materials

If you are planning a comprehensive repair or upgrade of the visibility zone in your Mercedes and need other elements from the same group, such as additional reservoirs, pumps, or fluid nozzles, check out the available parts in the Mercedes washer fluid reservoirs, pumps, and nozzles category.

When selecting components according to the OEM number or reference numbers and planning service work within fluid systems, a guide describing the principles of diagnostics and operation may be helpful – you can find a detailed discussion in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which organizes the approach to working with components that store and pump media in the vehicle.