Mercedes SLK R171 Petrol Fuel Filter Fuel Pump Sender Control Unit A1714700690

Mercedes SLK R171 Petrol Fuel Filter Fuel Pump Sender Control Unit is an original petrol supply system component designed for Mercedes SLK R171 series models. Thanks to its factory design, it ensures stable fuel pressure, proper engine supply, and predictable powertrain behavior across the full load range. This is a practical solution for users who want to maintain consistency with factory specifications and avoid issues typical of aftermarket replacements.

Specifications and technical data

• SKU: A1714700690-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1714700690
• Substitutable numbers: A1714700690, A 171 470 06 90
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Purpose and role in the fuel system

The fuel pump in the Mercedes SLK R171 is responsible for continuously delivering petrol from the tank to the fuel rail at the correct operating pressure. A properly functioning component in this group:

• stabilizes engine operation at idle and under load,
• reduces the risk of jerking, stalling, and starting problems,
• supports the correct operation of the fuel injection system and the engine control unit.

In the case of symptoms such as power loss, hard starting, or irregular engine operation, replacing the fuel pump is one of the fundamental diagnostic and service steps.

Design and fitment for Mercedes SLK R171

Mercedes SLK R171 Petrol Fuel Filter Fuel Pump Sender Control Unit has been designed specifically to work with the petrol supply system in this model. This means:

• retention of factory mounting points in the tank module,
• compatibility with the vehicle's stock electrical installation,
• proper cooperation with the fuel level sensor located in the same group of components.

As a result, installation is straightforward, without the need for wiring modifications or the use of additional adapters, which is important for both workshops and users servicing the vehicle themselves.

Benefits of using an original fuel pump

Using a component from the Fuel pumps and level sensors group dedicated to Mercedes allows you to maintain engine performance parameters at the level intended by the manufacturer. In practice, this means:

• more predictable throttle response and stable acceleration characteristics,
• reduced risk of overloading injectors and other fuel system components,
• easier computer diagnostics – pressure and flow values remain within expected ranges.

This solution is particularly beneficial for users who want to keep their car in a technical condition close to factory standards, without experimenting with unverified replacements.

Condition, verification, and use in service practice

The offered pump comes from the OEM used parts segment, which allows you to combine original specifications with a more cost-effective repair. This type of component is frequently chosen by workshops specializing in the Mercedes brand when quick availability and compliance with factory parameters are essential.

If you want to better understand when choosing used components is technically and economically justified, it is worth checking out the guide on our blog: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?. Although it mainly concerns electronics, it presents universal principles for the safe selection of used OEM components.

Additionally, to see how the availability of used original parts affects repair time and workshop organization, you can check the article: Availability of car parts off-the-shelf vs. repair time – how do used OEM parts shorten workshop stays?.

Fuel system expansion and related parts

If you are planning a comprehensive repair or upgrade of the fuel system area in your Mercedes and need other elements from the same group, such as pump modules, assemblies with level sensors, or additional pump inserts, check the available parts in the Mercedes fuel pumps and level sensors category.

Such an approach allows you to refresh key components responsible for petrol supply in one service stage, which limits vehicle downtime and makes it easier to maintain a consistent repair history.