Mercedes Cla Sport 2.1 Diesel Engine Wiring Loom Harness Starter Lead 0455452828

Mercedes Cla Sport 2.1 Diesel Engine Wiring Loom Harness Starter Lead is a specialized electrical system component responsible for reliable power supply to the starter motor in diesel units. Thanks to its factory-fit design for the CLA Sport diesel powertrain, it ensures stable operating parameters during engine start-up. This is a practical solution for users looking for a proven, original component for professional starter system repairs.

Specifications and technical data

• SKU: A1455452828
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1455452828
• Substitutable numbers: A1455452828, A 145 545 28 28, 0455452828
• Fuel type: Diesel
• Category: Other Starters, Alternators, ECUs & Wiring

Purpose and function in the starter system

The described engine wiring loom with starter lead has been designed for the Mercedes CLA Sport with a diesel engine, where it is responsible for the safe and efficient transfer of electrical energy to the starter motor. A correctly selected cable in this area is crucial for:

• stable engine start-up at various ambient temperatures,
• reducing voltage drops in the starter circuit,
• maintaining proper operation of the electrical system in the engine bay. Thanks to a design consistent with Mercedes factory standards, the wiring loom maintains the correct routing, mounting points, and cable cross-sections, which translates into seamless integration with the existing system.

Application in the diesel engine

Diesel engines require higher starting torque than petrol units, which is why the starter lead in the diesel version must be adapted to higher current loads. Using a dedicated wiring loom for the 2.1 Diesel variant in the CLA Sport allows for:

• maintaining adequate starter performance during frequent starts,
• minimizing the risk of cable overheating under heavy load,
• maintaining compatibility with the parameters of the factory alternator and battery. Such a fit is particularly important in vehicles used intensively, where the starter system operates in demanding urban and extra-urban conditions.

Characteristics of the original Mercedes wiring loom

The original engine wiring loom with starter lead for the CLA Sport has been manufactured in accordance with Mercedes quality standards, which means maintaining appropriate resistance to vibration, temperature, and moisture in the engine bay. The main advantages of this solution include:

• factory connectors and terminals, ensuring a secure electrical contact,
• insulation designed for operation near heat-generating components,
• wiring loom geometry matched to the routing of cables in original brackets. Thanks to this, installation is carried out in an orderly manner, without the need for system modifications, and the risk of chafing or mechanical damage to the cables is limited.

Condition, installation, and service application

This item comes from the used original parts segment, which allows for an economical yet technically correct repair of the starter system in a Mercedes CLA Sport. This solution is particularly attractive for workshops specializing in the Mercedes brand and individual users who expect a factory fit without the cost of purchasing a new sub-assembly. In practice, the engine wiring loom with starter lead will prove useful for:

• repairs following mechanical or thermal damage to the system,
• diagnosed voltage drops in the starter circuit,
• comprehensive replacement of electrical components in the engine bay. If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional wiring looms, power cables, or electrical connectors, check the available parts in the Other Mercedes category.

Technical support and parts selection

To correctly select the engine wiring loom with starter lead for a specific version of the CLA Sport, it is worth using the vehicle data and catalog numbers assigned to the specific unit. Proper identification eliminates the risk of incompatibility in cable lengths, connector types, or system configurations. If you are interested in a broader context of structural differences between sports variants and standard car versions, including issues related to engines, brakes, and chassis, the following material may be helpful: Audi RS vs other models – what is hidden under the hood and chassis?. For users of premium brands who want to select components even more precisely, the following guide will be particularly useful: How to select original used parts for BMW, Audi, and Mercedes using the VIN number?.