Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your Bosch 62415 Gasoline Injector. Bosch is a recognized leader in fuel systems technology, with over 45 years of experience in gasoline injection systems. Bosch fuel injectors are designed to meet original equipment (OE) specifications, ensuring optimal performance and longevity.

Figure 1: Main view of the Bosch 62415 Gasoline Injector.
Setup and Installation
The Bosch 62415 Gasoline Injector is designed for direct replacement and includes both top and bottom mounting O-rings, making it ready for installation directly out of the box. Installation should be performed by a qualified technician following the vehicle manufacturer's service manual procedures for fuel injector replacement.
General Installation Steps (Consult Vehicle Service Manual for Specifics):
- Safety First: Disconnect the vehicle's battery and relieve fuel system pressure before beginning any work. Ensure the engine is cool.
- Access: Locate and access the fuel rail and injectors. This may involve removing other engine components.
- Disconnect: Carefully disconnect the electrical connectors and fuel lines from the old injectors.
- Remove Old Injectors: Remove the retaining clips or bolts securing the old injectors. Gently pull the old injectors from their ports.
- Prepare New Injectors: Ensure the new Bosch 62415 injectors have their O-rings properly seated. Lubricate the O-rings with a small amount of clean engine oil or a suitable lubricant to aid installation and prevent damage.
- Install New Injectors: Carefully insert the new injectors into their respective ports, ensuring they are fully seated. Secure them with retaining clips or bolts.
- Reconnect: Reconnect fuel lines and electrical connectors. Double-check all connections for security.
- Leak Check: Reconnect the battery and cycle the ignition a few times (without starting the engine) to pressurize the fuel system. Inspect for any fuel leaks.
- Start Engine: Start the engine and check for proper operation, listening for any unusual noises or observing any warning lights.

Figure 2: Side view of the Bosch 62415 Gasoline Injector, showing O-rings.
Operating Principles
The Bosch 62415 Gasoline Injector operates as a critical component of the vehicle's fuel injection system, delivering precise amounts of fuel into the engine's combustion chambers. Its performance relies on ultra-precision engineering, with internal components operating at tolerances as small as 1-2 microns. This precision ensures optimal spray patterns for efficient combustion, contributing to engine performance, fuel economy, and reduced emissions.
The control valve within a common rail injector can open and close thousands of times per second, demonstrating the rapid and precise operation required for modern engine management. Bosch injectors are designed to maintain these exacting standards throughout their service life.
Video 1: This video explains the importance of choosing the correct injector, highlighting the precision engineering of Bosch injectors and the potential issues with non-OE endorsed alternatives. It demonstrates the rigorous testing processes and the benefits of Bosch's manufacturing standards.
Maintenance
Bosch 62415 Gasoline Injectors are designed for long-term reliability and typically do not require routine maintenance beyond proper installation and adherence to the vehicle manufacturer's recommended service intervals for fuel system components.
- Fuel Quality: Using high-quality, clean fuel is crucial for the longevity of fuel injectors. Contaminants in fuel can lead to clogging or damage.
- Fuel Filter Replacement: Regularly replace the vehicle's fuel filter according to the manufacturer's schedule to prevent debris from reaching the injectors.
- System Checks: During routine vehicle servicing, ensure the fuel system is inspected for proper pressure and absence of leaks.
Troubleshooting
If you experience issues with your vehicle's fuel system after installing a Bosch 62415 Gasoline Injector, consider the following common troubleshooting steps. Always consult a qualified technician for diagnosis and repair.
- Engine Misfires or Rough Idling:
- Check electrical connections to the injector for looseness or corrosion.
- Verify proper seating of the injector and O-rings to prevent vacuum leaks.
- Inspect for proper fuel pressure.
- Reduced Fuel Economy or Performance:
- Ensure the correct injector model was installed for your vehicle.
- Check for any diagnostic trouble codes (DTCs) using an OBD-II scanner.
- Confirm that all other fuel system components (fuel pump, fuel filter) are functioning correctly.
- Fuel Leaks:
- Immediately address any fuel leaks. Re-check O-ring installation and ensure all fuel lines are securely connected and tightened to specifications.
- Verify that the injector is fully seated in its bore.
Note: Inferior or non-OE endorsed injectors can lead to poor performance, serious engine damage, and increased emissions. Bosch injectors are manufactured to strict OE standards to prevent these issues.
Specifications
| Brand | Bosch |
| Model Number | 62415 |
| Material | High-alloy steels, plastic |
| Product Dimensions (L x W x H) | 1.38 x 1.38 x 4.65 inches |
| Item Weight | 1.6 ounces |
| Exterior Finish | Plastic |
| Inlet Connection Size | 0.13 Inches |
| Inlet Connection Type | Threaded (likely compatible with Female Iron Pipe or Compression fittings) |
| Outlet Connection Size | 0.13 Inches |
| Outlet Connection Type | Threaded |
| Number of Ports | 2 |
| Replaces OE Numbers | 13641706162, 13641731357, 13641734776, 1731357 |
| Compatible Vehicles (Select BMW) | 1987-93 325i, 1987-91 325is, 1988-91 325iX, 1989-90 525i, 1988-97 750iL, 1993-97 850Ci, 1994-95 850CSi, 1991-92 850i |
Warranty and Support
For specific warranty information regarding your Bosch 62415 Gasoline Injector, please refer to the documentation included with your purchase or visit the official Bosch Automotive website. Bosch stands by the quality and performance of its products.
For technical support, product inquiries, or to locate an authorized Bosch repair facility, please visit the Bosch Automotive website or contact their customer service department.