Mercedes W205 Alternator Generator Petrol Engine Valeo 150A 14V A0009062103

Mercedes W205 Alternator Generator Petrol Engine Valeo 150A 14V is an original charging system component designed for Mercedes vehicles with a petrol engine. This used alternator from the renowned manufacturer Valeo ensures a stable power supply for the electrical system and proper battery charging under the typical load of modern onboard systems.

Specifications and technical data

• SKU: A0009062103
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0009062103
• Substitutable numbers: A0009062103, A 000 906 21 03
• Fuel type: Petrol
• Category: Alternators & Generators

Purpose and function in the electrical system

The alternator in Mercedes C-Class W205 generation models is responsible for converting the engine's mechanical energy into electrical energy with a 14 V operating voltage. The 150 A capacity version is adapted to the requirements of petrol vehicles equipped with numerous consumers, such as engine control units, safety systems, lighting, multimedia, or comfort systems.

The generator from this series operates continuously across a wide RPM range, maintaining stable battery charging parameters and system power supply, which reduces the risk of voltage drops and starting issues. The use of a Valeo design allows for effective cooling and optimal operating characteristics under typical operating conditions for petrol cars.

Benefits of using a Valeo alternator in a Mercedes W205

Choosing a used alternator dedicated to the Mercedes W205 offers a number of practical advantages:

• Structural fit – the housing, mounts, and electrical connections are designed for the specific vehicle platform, which facilitates installation.
• Parameters compliant with petrol engine requirements – operating characteristics adapted to typical loads in this powertrain configuration.
• Consistency with the factory charging system architecture – the alternator works with the vehicle's original control units and electrical installation.
• A reasonable compromise between cost and functionality – a used component allows for reduced expenses while maintaining proper operating parameters.

Thanks to these features, the alternator from the Alternators and generators category is a practical solution for charging system repairs in Mercedes vehicles with a petrol engine, where maintaining proper cooperation with onboard electronics is crucial.

Condition, installation, and service application

The offered item is in used condition, meaning it has been removed from a vehicle and is intended for further use after proper verification and installation. This type of alternator is suitable both for standard replacement of a damaged generator and for system repairs where restoring proper charging is required without investing in a new part.

Due to its factory design for petrol units, it is recommended to use it only in vehicles with this fuel type, which minimizes the risk of operating parameter incompatibility. Installation should be performed by a person with experience in handling electrical systems, following procedures regarding onboard voltage and battery protection.

Mercedes alternators and generators – expansion and part selection

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 generators, alternators with different capacities, or compatible mounting elements, check the available parts in the Mercedes alternators and generators category.

Support in selecting used components

When planning a larger scope of service work, it is worth approaching the topic systematically – selecting the alternator, engine accessory elements, and small mounting components in one place. To better plan such purchases and avoid problems with low-quality replacements, you can use the practical tips describing the advantages of the One‑Stop‑Shop model and the selection of original used parts in the article Comprehensive supply: from the engine to the smallest clip – how to complete used car parts in one place?.