The MERCEDES W203 W204 W212 Washer Pump is an original part from the Washer Fluid Tanks, Pumps, and Nozzles category, designed for the washer system in popular Mercedes C-Class and E-Class models. This used OEM part ensures a factory fit for the electrical and hydraulic system, translating to stable operation of the windshield cleaning system. It's a practical solution for drivers seeking a proven component at a reasonable price.
Specifications and technical data
- SKU: A2108691221
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A2108691221
- Substitutable numbers: A2108691221, A 210 869 12 21, AS
- Category: Washer Pumps, Reservoirs & Nozzles
Application and Compatibility with Mercedes W203, W204, W212
The washer pump is designed for Mercedes C-Class models of the W203 and W204 generations, and E-Class W212, where it is responsible for delivering fluid to the washer nozzles. Thanks to its construction conforming to factory Mercedes standards, the part works seamlessly with the original fluid reservoir, hoses, and electrical connector, facilitating installation and subsequent operation.
A properly selected washer pump is crucial for effective windshield cleaning, and in many configurations, for headlights as well. Stable operating pressure and correct fluid flow direction contribute to the driver's visibility, which in turn enhances driving safety in rain, snow, or road debris conditions.
Construction and Performance Parameters of the Mercedes Washer Pump
As an original Mercedes part, the washer pump is adapted to the electrical and hydraulic requirements of the factory system. The housing and connection nipples are configured to work with the standard fluid hoses, and the electrical connector fits the wiring harness without any modifications.
Key performance features of this pump include:
- factory fit for the washer system in Mercedes W203, W204, W212,
- maintenance of appropriate fluid pressure and flow rate,
- compatibility with the original reservoir and washer nozzles,
- construction designed for operation in varying temperature conditions.
This makes installation a simple matter of connecting the fluid hoses and the electrical plug, without the need for adapters or system modifications.
Benefits of Using an Original Washer Pump
Choosing an original Mercedes washer pump ensures the consistency of the entire system with the vehicle's factory specifications. Appropriate operating parameters translate to even fluid distribution to the nozzles, improving cleaning efficiency and reducing fluid consumption. This is particularly important for highway driving and in urban conditions where windshield dirt appears more frequently.
A used OEM part offers a good balance between cost and quality – it retains the factory fit and performance characteristics while allowing for cost savings compared to a new part. For many owners of older Mercedes generations, this is a sensible way to maintain the washer system's functionality without compromising the original design.
Installation and Diagnostics of the Washer System
Installing the washer pump in Mercedes W203, W204, and W212 models is typically straightforward for a workshop or experienced user – the part is installed directly in or near the fluid reservoir, using the factory mounting points. Before replacement, it's advisable to check the condition of the hoses, nozzles, and the overall system's leak-tightness to avoid repeated interventions in a short period.
In case of washer system malfunctions (no fluid delivery, uneven spray, pump noise), it is recommended to:
- verify electrical supply and fuses,
- check for blockages in hoses and nozzles,
- inspect the reservoir and connections for leaks,
- assess the condition of the pump itself for mechanical wear.
For those interested in a broader understanding of selecting and diagnosing fluid or fuel supply components, an article describing the operating principles and component selection by identification numbers may be helpful: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair.
Other Mercedes Washer Fluid Tanks, Pumps, and Nozzles
If you are also looking for other parts from the Washer Fluid Tanks, Pumps, and Nozzles category dedicated to this brand, check out the Mercedes washer fluid tanks, pumps, and nozzles available in our assortment to comprehensively care for your car's windshield cleaning system.
