BMW 3 Series E46 N42 N46 316i 318i Starter Motor Bosch 1,4kW 7505979

BMW 3 Series E46 N42 N46 316i 318i Starter Motor Bosch 1,4kW is an original starting system component designed for N42 and N46 petrol engines in the 3 Series E46. Thanks to the use of proven Bosch technology, it ensures stable engine starting and reliable integration with the factory BMW electrical system, which is crucial for daily vehicle operation.

Specifications and technical data

• SKU: 7505995
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7505979
• Substitutable numbers: 12427505995 7505995, 12417505979 7505979, 0001108196, 0 001 108 196, EM

Purpose and compatibility

The presented starter motor is designed for BMW 3 Series E46 models with N42 and N46 engines in 316i and 318i versions. The OEM-based construction guarantees a proper fit to the gearbox housing, correct positioning relative to the flywheel ring gear, and compatibility with the vehicle's factory wiring.

As a result, this component can be used both as a replacement part in the event of a failure and as a preventive replacement for a worn-out starter, without the need for system modifications or additional mechanical adjustments.

Operating parameters and construction

The starter motor utilizes Bosch technology with a rated power of 1.4 kW, providing sufficient torque for efficient starting of BMW four-cylinder petrol engines. The gear and solenoid are selected specifically for the characteristics of N42/N46 engines, which results in smooth engagement with the ring gear and reduction of unwanted vibrations during startup.

The housing and mounting system are consistent with the factory mounting points in the E46, which facilitates service and reduces replacement time. The design solutions promote even distribution of mechanical loads and proper operation under typical engine bay temperature conditions.

Benefits of using an original starter motor

Choosing an original BMW/Bosch starter motor for the E46 allows you to maintain the integrity of the starting system with the other components of the electrical installation. In practice, this means:

• correct current draw values during startup,
• better cooperation with the battery and alternator,
• lower risk of cold-start issues,
• reduced noise and vibration compared to cheap aftermarket replacements.

For users planning a wider range of repairs or upgrades, it is worth considering assembling a larger package of parts from a single source. You can read more about this One-Stop-Shop approach and selecting original used parts in the article: how to comprehensively collect used car parts in one place.

Condition and service application

The offered starter motor is a used part, sourced from dismantling, which allows you to combine reasonable repair costs with maintaining the original BMW specification. Such components are frequently used both in independent workshops specializing in the brand and by conscious users servicing their cars themselves.

Before installation, a standard service procedure is recommended: checking the condition of power cables, ground points, and battery health. A properly selected and correctly installed starter motor significantly increases daily starting reliability, which is particularly important for vehicles operated in diverse urban and extra-urban conditions.

Summary

BMW 3 Series E46 N42 N46 316i 318i Starter Motor Bosch 1,4kW is a functional choice for 3 Series E46 owners looking for an original starting system solution on a reasonable budget. The construction based on Bosch technology ensures proper operating parameters, and the fitment for N42/N46 units facilitates installation and allows maintaining the factory standard of the entire powertrain operation.