Mercedes-Benz A B W169 W245 Starter Alternator Battery Lead Cable A1694402805

Mercedes-Benz A B W169 W245 Starter Alternator Battery Lead Cable is an original component from the Cables, harnesses and connectors group, designed for the starting system in Mercedes vehicles. It ensures a stable electrical connection in the start/stop circuit, which translates into reliable engine starting and proper integration with the vehicle's electrical system.

Specifications and technical data

• SKU: A1694402805
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1694402805
• Substitutable numbers: A1694402805, A 169 440 28 05, BG
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function of the start/stop cable

The presented harness is a component of the installation responsible for transmitting signals and power in the starting circuit, including the start/stop system. It is responsible for the correct connection between control modules and actuators, which has a direct impact on the system's response when starting and stopping the engine.

Thanks to its factory design, the cable maintains the correct routing geometry in the vehicle's engine bay, minimizing the risk of abrasion, tension, and improper positioning relative to other installation components.

Construction and advantages of the original harness

The harness belongs to the Cables, harnesses and connectors group, which means it has been designed as a complete solution with appropriately selected wire cross-sections, insulation, and factory connectors. The terminals and sockets used are matched to the Mercedes installation, which limits the need for any modifications or soldering.

Key advantages of this solution include:

• factory connectors ensuring a secure electrical contact,
• appropriately selected length and layout of wires,
• compatibility with the vehicle's factory electrical architecture,
• possibility of installation in place of the original component without interfering with the wiring.

Condition, origin, and service application

The component comes from a Mercedes vehicle and is offered as a used part, which allows for an economical repair of the starting system while maintaining the original specification. This type of harness is suitable both for a typical replacement of a damaged cable and for service work related to diagnosing problems with engine starting or the operation of the start/stop function.

Using an original harness instead of a faulty component reduces the risk of installation errors, module communication problems, and accidental short circuits resulting from unprofessional, makeshift repairs.

Benefits of using an original cable in a Mercedes

Choosing a cable dedicated to the start/stop system in W169 and W245 models allows you to maintain the consistency of the electrical installation with the manufacturer's specifications. You receive a component that:

• is structurally matched to the specific vehicle platform,
• facilitates quick installation thanks to factory connectors,
• helps restore the correct operation of the engine start and stop function,
• reduces the risk of recurring faults resulting from improper installation modifications.

This is a practical solution for workshops and users who want to restore the efficiency of the starting system without compromising on original build quality.

If you are planning a comprehensive repair or upgrade of the electrical installation area responsible for starting in your Mercedes and need other elements from the same group, such as additional harnesses, signal cables, or installation connectors, check the available parts in the Mercedes Cables, harnesses and connectors category.

For users interested in improving the vehicle's throttle response, better utilizing the potential of the power unit, and making informed choices about used components, a valuable addition to your knowledge will be the article How to increase engine power: a practical guide to engine tuning with used parts, which helps to plan modifications in a safe and technically sound manner.