BLLA 155 P 2400+

BOSCH / BOSIO INJECTOR NOZZLE: DLLA155P2400+ – FULL SPECIFICATION

I. Key Identification & Compatible Injectors

Nozzle (Injector Tip) P/N: DLLA155P2400+ (Also referenced as BOSCH MEC: 0 433 172 400).
System Manufacturer: BOSCH Common Rail Diesel Injection System.

Compatible Injector Assembly P/N(s):
- BOSCH Injector Reference: 0 445 110 574
- OEM / Vehicle Manufacturer: MERCEDES-BENZ (various CDI diesel engines, depending on model year and engine type).
- Typical OEM Numbers: A6460701487, A6460701587, A6460701787 (cross-reference varies by engine).

II. Vehicle Application & Technical Data

Primary Vehicle Application: MERCEDES-BENZ passenger cars and light commercial vehicles.
Models: C-Class (W203/W204), E-Class (W211/W212), Sprinter, Vito, Viano.
Engine Types: 2.2L / 2.7L CDI diesel engines (OM646 / OM647 / OM648 series).
Injector Technology: BOSCH Solenoid-Type Common Rail Injector.
Nozzle Type: DLLA155P2400+ — precision multi-hole nozzle for optimized fuel atomization and combustion efficiency.
Material: High-strength tool steel, heat-treated and corrosion-resistant.
Fuel Compatibility: EN 590 Diesel / Biodiesel blends up to B7.

III. Critical Technician Notes (MUST-DO)

1. Injector Calibration: After replacing or servicing, re-enter the injector IMA/ISA code into the ECU using STAR Diagnosis or compatible Mercedes diagnostic tools.
2. Sealing Components: Always replace copper washers and O-rings with new genuine parts.
3. Injector Bolts: Clamp bolts are single-use stretch bolts and must be replaced with each installation.
4. Clean Installation: Maintain absolute cleanliness — contamination can damage the nozzle or injector.
5. Calibration & Verification: Perform leak-back test, pilot injection, and correction coding to ensure balanced fuel delivery and optimal engine performance.