F453

DELPHI / CONTINENTAL INJECTOR NOZZLE: L453 / F453 – FULL SPECIFICATION

I. Key Identification & Compatible Injectors

Nozzle (Injector Tip) P/N: L453 / F453
System Manufacturer: Delphi / Continental Common Rail Diesel Injection System (aftermarket replacement for Delphi OEM).

Compatible Injector Assembly P/N(s):
- Related Part Numbers: 28390967 / G467
- Corresponding Injector OE Numbers: 28370681 / 28565330 / 04L130277D / 04L130277BC
- OEM / Vehicle Manufacturer: VW / Audi (VAG Group)
- Typical Applications (with HP / kW):
• VW Golf, Passat, Tiguan 2.0 TDI – 140 HP / 103 kW, 150 HP / 110 kW
• Audi A3, A4, Q3 2.0 TDI – 140 HP / 103 kW, 150 HP / 110 kW
• Other VAG vehicles with Euro 5 / Euro 6 compliant 2.0 TDI engines

II. Vehicle / Engine Application & Technical Data

Primary Vehicle Application: VW / Audi common-rail 2.0 TDI diesel engines for passenger cars and SUVs.
Engine Type: Inline-4, 2.0 L TDI, Euro 5 / Euro 6 compliant
Injector Technology: Delphi / Continental Common Rail Solenoid Injector.
Nozzle Type: L453 / F453 — high-precision multi-hole nozzle for efficient atomization and combustion.
Technical Characteristics:
- Material: High-strength tool steel
- Number of Holes: 5–6 (engine variant dependent)
- Hole Diameter: ~0.150 mm
- Spray Angle: 145–150°
- Operating Pressure: 1600–2000 bar
- Fuel Compatibility: EN 590 Diesel / B7 Biodiesel blends
- Performance Features: Optimized for smooth idle, stable combustion, low emissions, and long service life

III. Critical Technician Notes (MUST-DO)

1. Clean Installation: Clean nozzle thoroughly (ultrasonic cleaning recommended) before installation.
2. Sealing Components: Replace O-rings, copper washers, and seals; do not reuse old parts.
3. Injector Mounting: Follow OEM torque and alignment specifications.
4. Post-Installation Testing: Perform leak-back or test-bench spray tests to verify correct spray pattern and no leaks.
5. Calibration / Coding: Use VAG-approved diagnostic tools if injector coding is required.
6. Fuel Quality Notes: Use clean, high-quality diesel; replace fuel filters during service.
7. Storage & Handling: Store nozzles in a clean, dry environment; protect tip from mechanical damage.
8. Common Fault Symptoms: Hard start, rough idle, black smoke, reduced power, or excessive fuel return flow.