The Bosch 0445110358 is a common rail fuel injector used in various diesel engines. Here’s a breakdown of its key details:

Specifications & Features:

• Type: Common Rail Diesel Injector (Solenoid-controlled)

• Injector Class: High-pressure (up to 1800 bar or higher, depending on the system)

• Compatible Systems: Bosch Common Rail (e.g., CRS2, CRS3)

• Nozzle Type: Mini-sac or VCO (Valve Covered Orifice), depending on application

• Electrical Connector: Euro-style or specific to the vehicle model

Common Applications:

This injector is used in several diesel engines, including:

• Volkswagen (VW) / Audi: Some 2.0 TDI engines (verify exact model)

• Mercedes-Benz: Certain OM651/OM646 engines

• BMW: Some M47/M57 variants

• Peugeot/Citroën (PSA): 1.6 HDI / 2.0 HDI engines

• Ford/Volvo: Some Duratorq/D5 engines

Symptoms of a Failing Injector:

• Misfiring or rough idle

• Increased fuel consumption

• Black/white smoke from exhaust

• Hard starting or no-start condition

• Diagnostic trouble codes (DTCs) like P020X (Injector Circuit Malfunction) or P026X (Cylinder Contribution/Balance)

  The Bosch 0445110358 common rail fuel injector is a solenoid-controlled high-pressure diesel injector used in modern direct-injection systems. Below is a breakdown of its internal structure and key components:

• 1. Main Components of the Bosch 0445110358 Injector

• (A) Upper Section (Electrical & Control)

• Electrical Connector

• Receives signals from the ECU (voltage pulses to activate the solenoid).

• Typically has two pins (for power and ground).

• Solenoid Valve (Actuator)

• An electromagnet that opens/closes the injector when energized.

• Controls high-pressure fuel flow into the nozzle.

• Armature & Ball Valve

• Moves upward when the solenoid is energized.

• Lifts the ball valve, allowing fuel to flow toward the nozzle.

• (B) Middle Section (Hydraulic Control)

• Control Chamber (Pressure Chamber)

• Contains a small piston that regulates nozzle needle movement.

• Fuel pressure here determines when the injector opens/closes.

• High-Pressure Fuel Inlet

• Connects to the common rail (up to 1800–2000 bar pressure).

• Delivers pressurized diesel to the injector.

• Return (Leak-Off) Connection

• Excess fuel and leakage are routed back to the fuel tank.

• A clogged return can cause injector failure.

• (C) Lower Section (Nozzle & Injection)

• Nozzle Needle

• Precisely controlled by hydraulic pressure.

• Lifts to spray fuel into the combustion chamber.

• Nozzle Orifices (Spray Holes)

• Ultra-fine holes (e.g., 6–8 holes, ~0.12mm diameter).

• Atomizes fuel for efficient combustion.

• 2. How It Works (Operating Principle)

• ECU Sends Signal → Solenoid energizes, lifting the armature & ball valve.

• Control Chamber Pressure Drops → Nozzle needle lifts due to rail pressure.

• Fuel Sprays → High-pressure diesel is injected into the cylinder.

• ECU Cuts Signal → Solenoid deactivates, ball valve closes, nozzle reseats.