Audi A4 B8 2.0 TDI CAGA Diesel Engine Starter Motor Bosch Unit 03L911021C

Audi A4 B8 2.0 TDI CAGA Diesel Engine Starter Motor Bosch Unit is a used component from the Starters category, designed for diesel engines. It is a solution for drivers who expect reliable diesel engine starting and the maintenance of factory performance parameters of the drivetrain.

Specifications and technical data

• SKU: 03L911021C
• Mark: Audi
• Condition: Used
• OEM Part Number: 03L911021C
• Substitutable numbers: 03L911021C, 03L 911 021 C, 2339305068, 2 339 305 068
• Fuel type: Diesel
• Category: Starter Motors

Purpose and compatibility

The presented starter motor is dedicated to the Audi A4 B8 generation model with a 2.0 TDI engine, code CAGA, powered by Diesel fuel. The design based on Bosch technology ensures a proper fit for the starting system and correct cooperation with the vehicle's electrical installation.

Thanks to the use of the original mounting concept, the starter is ready for installation in place of the factory component, which facilitates the mechanic's work and reduces the risk of compatibility issues.

Construction and performance parameters

The Bosch starter motor used in the Audi A4 B8 2.0 TDI CAGA has been designed for repeatable, reliable starting of a diesel engine, which requires a higher starting torque than gasoline units. The starter's drive system is adapted to the characteristics of a diesel engine, which translates into stable crankshaft rotation even at lower ambient temperatures.

The housing and working elements are configured to work with the factory flywheel and Audi's electrical system, maintaining appropriate current and mechanical parameters. This type of construction reduces the risk of excessive wear on the flywheel ring gear teeth and ensures predictable behavior during startup.

Application in the diesel starting system

In the 2.0 TDI CAGA engine, the starter plays a key role in initiating the operation of the diesel unit, which uses compression rather than a spark to ignite the mixture. Therefore, it is essential that this component ensures:

• appropriate crankshaft rotational speed during startup,
• stable operation under the load characteristic of diesel engines,
• proper cooperation with the vehicle's electrical installation.

A well-chosen starter for the Audi A4 B8 2.0 TDI CAGA helps reduce engine starting problems, especially during frequent short trips or operation in lower temperatures.

Characteristics of the used product

The offered starter is in a used condition, which represents a reasonable compromise between cost and functionality. This type of component is often chosen as an economical alternative to new parts, while maintaining the original design and fit for the specific vehicle model.

Choosing a used Bosch starter for an Audi allows for maintaining the consistency of the starting system with the manufacturer's factory specifications, which is particularly important in the case of diesel units sensitive to starting quality.

Selection support and additional information

The starter belongs to the group of components responsible for starting the engine, so when replacing it, it is worth paying attention to compatibility with the power unit and the parameters of the electrical installation. Manufacturer markings, catalog numbers, and information about the fuel type can be helpful, as they facilitate precise part selection.

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other components from the same group, such as starters with different specifications, variants for other units, or alternative manufacturer versions, check the available parts in the Audi Starters category.

For those considering purchasing components from the secondary market, including starting system elements, practical tips on selection and avoiding common mistakes may be useful – you will find them in the article Buying used car parts – the most common mistakes when choosing tuning parts.