The Bosch fuel injector 0445110361 is a common diesel fuel injector used in various European vehicles, particularly in Volkswagen (VW), Audi, Skoda, and Seat models with 1.9 TDI and 2.0 TDI engines.

Key Details:

• Part Number: 0445110361 (Bosch)

• Type: Diesel Fuel Injector (Solenoid-valve injector)

• Applications:

• VW/Audi 1.9 TDI (PD engines) — e.g., VW Golf Mk4, Bora, Passat, Audi A3, A4

• VW/Audi 2.0 TDI (PD engines) — e.g., VW Golf Mk5, Jetta, Audi A6

• Nozzle Type: Often paired with DSLA 150 P 1047 or similar nozzles.

• Seat Type: Conical seat (requires proper sealing in the cylinder head).

Common Symptoms of a Faulty Injector:

• Hard starting or misfires

• Poor fuel economy

• Excessive smoke (black or white)

• Engine hesitation or loss of power

• Fault codes (e.g., P020x – Injector Circuit Malfunction)

Replacement & Calibration:

• New injectors may need coding (injection quantity adjustment via VCDS or dealer tools).

• Used injectors should be checked for proper spray pattern and flow rates.

• Sealing washers must be replaced to prevent leaks.

Compatible Part Numbers (Alternatives/OEM):

• 038 130 073 AB (VW/Audi OEM)

• 0445110377 (Similar Bosch injector for some applications)

If you’re replacing this injector, ensure proper diagnostics to confirm the issue, as problems can also stem from wiring, fuel pressure, or ECU faults.