Audi A3 8P Engine Crankshaft Crank Shaft 1.4 TSI Petrol Engine CAXC 03C105101BM

Audi A3 8P 1.4 TSI Petrol CAXC Engine Crankshaft is a component from the Crankshafts group, designed for petrol-powered engines. The offered component comes from the Volkswagen line, ensuring factory fitment to the crankshaft assembly and proper cooperation with the engine block and lubrication system.

Specifications and technical data

• SKU: 03C105101BM
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 03C105101BM
• Substitutable numbers: 03C105101BM, 03C 105 101 BM
• Fuel type: Petrol
• Category: Crankshafts

Purpose and Compatibility

The presented crankshaft is dedicated to the 1.4 TSI CAXC petrol engine used in the Audi A3 8P. The design has been developed for the specific loads and operating characteristics of this unit, which translates into stable operation of the crankshaft assembly, proper balancing, and correct cooperation with pistons and bearings.

The element belongs to the group of original Volkswagen components, thus maintaining factory dimensional tolerances, main and connecting rod journal geometry, and appropriate torsional stiffness. This is crucial for repairing TSI engines, where fitting precision directly impacts the unit's running smoothness and durability.

Technical Characteristics of the Crankshaft

The crankshaft is responsible for converting the reciprocating motion of the pistons into rotational motion, so its condition directly affects oil pressure, vibration levels, and engine noise. This model features solutions typical for modern petrol engines, ensuring:

• stable guidance of main journals in the engine block,
• appropriate stiffness at high rotational speeds,
• correct cooperation with the lubrication system and bearings,
• maintenance of the crankshaft assembly's axial alignment and geometry.

By maintaining factory parameters, the crankshaft allows for the restoration of proper operation of the 1.4 TSI CAXC unit after mechanical failure or wear of the crankshaft assembly components.

Application in TSI Petrol Engine Repairs

TSI petrol engines require precisely selected rotating components. The use of the correct crankshaft is particularly important for:

• major engine overhaul after seizure or bearing damage,
• repairs after lubrication system failure,
• restoring factory operating parameters after mileage that has generated excessive clearances in the crankshaft assembly.

Choosing a component from the same design family as the original engine helps reduce the risk of balancing issues, excessive vibrations, or reduced durability. This solution is particularly beneficial for professional repairs where repeatability and compliance with manufacturer specifications are paramount.

Condition and Benefits of Using a Used Part

The offered crankshaft is a used component, allowing for economical repair while maintaining the original design specification. In practice, this means the possibility of restoring engine functionality at a lower cost than purchasing a new component, while ensuring compliance with the factory design.

Choosing a used crankshaft from this product group is particularly attractive in situations where optimizing the repair budget while maintaining proper engine operation and compatibility with other system components is a priority.

Repair Extension – Volkswagen Crankshafts Group

If you are planning a comprehensive repair or upgrade of the engine area in your Volkswagen and need other components from the same group, such as additional crankshafts, components cooperating with the crankshaft assembly, or components for other engine units, check the available parts in the Volkswagen Crankshafts category.

Technical Support for Selecting Powertrain Components

When planning major powertrain repairs, it is worth paying attention to the dependencies between the engine and other drivetrain components. Additional information on the cost-effectiveness of using used parts in key vehicle systems is provided in the article “Used Gearbox – When It’s Worth It and What You Need to Remember”, which addresses issues of compatibility, costs, and conscious part selection.