BSLA 156 P 1155+

BOSCH INJECTOR NOZZLE: DSLA156P1155+ – FULL SPECIFICATION

I. Key Identification & Compatible Injectors

Nozzle (Injector Tip) P/N: DSLA156P1155+
BOSCH MEC / Catalog Number: 0 433 175 342
System Manufacturer: BOSCH Common Rail Diesel Injection System.

Compatible Injector Assembly P/N(s):
- BOSCH Injector Reference: 0 445 110 115
- OEM / Vehicle Manufacturer: MERCEDES-BENZ diesel engines
- Typical OEM Applications: Mercedes-Benz Sprinter, Vito, C-Class, E-Class with 2.0–3.0 L diesel engines.

II. Vehicle / Engine Application & Technical Data

Primary Vehicle Application: Mercedes-Benz passenger cars, vans, and light commercial vehicles with Common Rail diesel engines.
Engine Type: Inline-4 and inline-6 diesel engines (2.0–3.0 L).
Injector Technology: BOSCH Solenoid-Type Common Rail Injector.
Nozzle Type: DSLA156P1155+ — precision multi-hole nozzle for optimized atomization.
Number of Holes: 6–7 (depending on engine)
Spray Angle: 156°
Hole Diameter: ~0.145 mm
Material: High-strength, heat-treated tool steel.
Fuel Compatibility: EN 590 Diesel / Biodiesel blends up to B7.

III. Critical Technician Notes (MUST-DO)

1. Injector Calibration: After nozzle replacement, always perform injector coding and calibration (IMA/ISA) using diagnostic tools.
2. Sealing Components: Replace copper washers and O-rings at every installation.
3. Injector Bolts: Use new stretch bolts — never reuse old bolts.
4. Clean Installation: Maintain absolute cleanliness during assembly; contamination can lead to premature injector failure.
5. System Verification: Perform leak-back test, pilot injection calibration, rail pressure check, and full engine performance verification after installation.