Mercedes SLK R171 Petrol Electric Fuel Pump Delivery Control Unit A1714703394

Mercedes SLK R171 Petrol Electric Fuel Pump Delivery Control Unit is an original fuel system component responsible for precise control of the pump operation in petrol engine vehicles. Thanks to its factory design, it ensures proper pressure and stable fuel supply, which translates into correct engine operation and predictable vehicle behavior. This solution is intended for users who want to maintain consistency with the factory electrical architecture of their Mercedes.

Specifications and technical data

• SKU: A1714703394-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1714703394
• Substitutable numbers: A1714703394, A 171 470 33 94
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The presented controller is a component from the Fuel pumps and level sensors group, working with the electric fuel pump in the Mercedes SLK R171 generation model. Its task is to control the pump efficiency depending on engine load, operating conditions, and signals from other vehicle modules. A properly selected control unit allows for maintaining stable power supply parameters, reducing the risk of power drops, and ensuring correct engine startup.

Benefits of using an original Mercedes module

Using an original Mercedes solution for fuel pump control means maintaining compatibility with factory control maps and system logic. In practice, this translates into:

• proper cooperation with the vehicle's electrical installation and electronics,
• stable petrol supply across the full load range,
• reduced risk of diagnostic errors related to the fuel system,
• easier diagnostics during future service work.

The element from this group is particularly important in the case of symptoms such as uneven engine operation, starting problems, or sporadic engine stalling under load. Replacing it with a functional fuel pump control module can be a key step in restoring the correct characteristics of the fuel system.

Technical characteristics and fitment

The module has been designed to work with the petrol fuel system in the Mercedes SLK R171, which means it is matched to the specific pressure and efficiency requirements for petrol engines. As a result, the controller implements appropriate regulation strategies, taking into account injection characteristics and safety requirements for pump operation.

It is always worth confirming the part selection based on vehicle data and catalog numbers in the technical specification. This allows you to avoid compatibility issues and ensures proper operation in the long term.

Condition, origin, and service application

The offered fuel pump control module is a secondary market component, which is a cost-effective solution while maintaining factory design and purpose. This type of part is suitable both for standard fuel system repairs and for step-by-step component replacement as part of broader diagnostics of petrol engine fuel supply problems.

In practice, the module can be used, among other things, for:

• replacing a damaged electric fuel pump along with control accessories,
• clearing errors related to incorrect fuel pressure,
• modernizing or restoring the efficiency of the fuel system after previous, ineffective repairs.

Technical support and additional materials

To better plan diagnostics and the selection of fuel system components, it is worth using educational materials regarding the construction and servicing of fuel systems. A detailed discussion of the operation of pumps, injectors, and the fuel tank, along with tips on selecting parts by catalog numbers, can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

If you are planning a comprehensive repair or modernization of the fuel supply area in your Mercedes and need other elements from the same group, such as pump control modules, in-tank pump assemblies, or fuel level sensors, check the available parts in the category Mercedes fuel pumps and level sensors.