The Bosch injector with part number 0445110659 is a common fuel injector used in various diesel engines, particularly in Volkswagen Group vehicles. Here are some important information about it:

0445110659 Key Specifications:

• Type: Diesel solenoid fuel injector (piezoelectric or solenoid, depending on variant)

• Application: Used in many VW/Audi 2.0 TDI and some 1.6 TDI engines (e.g., CR Common Rail systems).

• Compatible Engines:

• VW/Audi: Engines like the 2.0 TDI (CBEA, CFFA, CJAA) and 1.6 TDI (CAYC).

• Other Vehicles: May also fit certain BMW, Mercedes, and Peugeot/Citroën diesel models.

• Nozzle Type: High-precision multi-hole nozzle for efficient atomization.

• Flow Rate: Varies by calibration, but typically around 200-250 cc/min (exact flow depends on engine tuning).

• Pressure Rating: Designed for Common Rail systems with pressures up to 1800 bar or higher (depending on generation).

The Bosch 0445110659 fuel injector is a high-performance diesel injector designed for Common Rail Direct Injection (CRDi) systems. It offers several key characteristics and advantages that enhance engine efficiency, emissions control, and performance. Here’s a detailed breakdown:

1. Precision Fuel Delivery

• Multi-Hole Nozzle Design: Features an optimized spray pattern (typically 6-8 holes) for superior fuel atomization, ensuring efficient combustion.

• High Injection Pressure: Supports pressures up to 1,800 bar (or higher in newer versions), improving fuel efficiency and reducing particulate emissions.

• Fast Response Time: Solenoid or piezoelectric actuation (depending on variant) allows ultra-fast opening/closing, enabling multiple injections per cycle (pilot, main, post-injection).

2. Enhanced Engine Performance & Efficiency

• Optimized Combustion: Better fuel-air mixing leads to higher thermal efficiency, improving power output and fuel economy.

• Reduced Emissions: Precise metering and multiple injections help lower NOx and soot emissions, complying with Euro 5/Euro 6 standards.

• Adaptability: Works seamlessly with advanced engine management systems (e.g., VW’s EDC17 ECU) for dynamic adjustments.

3. Durability & Reliability

• Robust Materials: Built with hardened steel and wear-resistant coatings to withstand high-pressure diesel environments.

• Long Service Life: Engineered for 200,000+ km under normal conditions (with proper maintenance).

• Leak-Resistant Design: Improved sealing (e.g., copper washers, upgraded O-rings) minimizes fuel leaks.

4. Compatibility & Integration

• Wide Application: Used in VW/Audi 2.0TDI (CBEA/CJAA) and 1.6TDI (CAYC) engines, as well as some BMW and PSA Group diesels.

• Plug-and-Play (with Coding): Direct replacement for older Bosch injectors (e.g., 0445110169), though ECU coding may be required.

5. Advanced Technology Features

• Piezo/Solenoid Actuation:

• Piezo Variant: Faster response (~5x quicker than solenoids), enabling finer control over injection timing.

• Solenoid Variant: Simpler design, cost-effective, but slightly slower.

• Closed-Loop Control: Works with engine sensors to self-adjust for optimal performance (e.g., compensating for wear over time).

6. Diagnostic & Service Advantages

• Standardized Failure Codes: Common issues (e.g., imbalances, electrical faults) trigger specific OBD-II codes (P020X, P0263-P0266) for easier troubleshooting.

• Refurbishment Potential: Nozzles and seals can often be replaced, extending injector life.