Mercedes SLK R171 M271 Positive Battery Cable Starter Alternator A1715400130

Mercedes SLK R171 M271 Battery-Starter-Alternator Positive Cable is an original power supply component, designed specifically for M271 engines in the SLK R171 model. The used OEM cable ensures factory fit, proper harness routing, and a stable electrical connection between the battery, starter, and alternator.

Specifications and technical data

• SKU: rhd-A1715400130
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1715400130
• Substitutable numbers: A1715400130, A 171 540 01 30
• Category: Other Starters, Alternators, ECUs & Wiring

Purpose and Function in the Electrical System

This positive cable is responsible for transmitting starting current from the battery to the starter and supplying power to the alternator in the Mercedes SLK R171 generation with the M271 engine. A correctly selected component:

• ensures adequate conductivity across the full range of starting loads,
• minimizes voltage drops in the system,
• maintains stable operating conditions for the alternator and starter,
• reduces the risk of overheating connectors and cables.

Thanks to its design conforming to the factory project, the cable is routed to the correct mounting points, which limits vibrations, insulation chafing, and potential short circuits.

Advantages of Using an Original Positive Cable

Using the original positive cable in the Mercedes SLK R171 M271 offers tangible operational benefits:

• Compatibility with OEM System – correct length, cross-section, and terminals matched to factory connection points.
• Stable electrical parameters – the cable is designed for the actual loads of the starter and alternator in this specific powertrain.
• Safe harness routing – factory geometry facilitates installation in original brackets and clips.
• Consistency with service documentation – simplifies diagnostics and any further work on the power supply system.

Component Condition and Installation Aspects

The cable is from a dismantled vehicle and is offered as a used part, allowing for economical repair while maintaining the original manufacturer's specifications. Before installation, a standard inspection of the terminal condition, insulation, and vehicle ground points is recommended to ensure proper operation of the entire starting system.

Replacing the positive cable in the Mercedes SLK R171 M271 is a typical service operation, performed, among other things, for starting problems, voltage drops, or signs of overheating at the connectors. A correctly installed component contributes to reliable engine starting and stable operation of the electrical system.

Part Selection by Numbers and Integration with Other Components

The offered cable should be selected based on the vehicle manufacturer's catalog data, considering the M271 engine version and the SLK R171 body generation. Correct selection guarantees full compatibility with the starter, alternator, and battery factory-fitted in the specific vehicle.

If you are planning comprehensive service of the power supply system or an upgrade of the engine accessories, it is worth paying attention to the condition of other high-current cables, battery terminals, and ground points to avoid unnecessary voltage drops and electronic interference.

If, during electrical system service on your Mercedes, you also need other body parts, mountings, clips, or small assembly components of this brand, check the available parts in the Other Mercedes category.

To compare the characteristics of sports powertrains with solutions used in standard versions of premium models, and to better understand the differences in engine, brake, and chassis construction, it is worth reading the article Audi RS vs. Other Models – What Lies Under the Hood and Chassis?, which helps to take a broader view on part selection for high-performance cars.