BLLA 139 P 2229

BOSCH INJECTOR NOZZLE: DLLA139P2229 – FULL SPECIFICATION

I. Key Identification & Compatible Injectors

Nozzle (Injector Tip) P/N: DLLA139P2229
BOSCH MEC / Catalog Number: 433172229
System Manufacturer: BOSCH Common Rail Injection System.

Compatible Injector Assembly P/N(s):
- BOSCH Injector References: 0 445 110 418, 0 445 110 520
- OEM / Vehicle Manufacturer: FIAT (and FCA group: Alfa Romeo, Opel/Suzuki variants depending on platform)
- Engine Family: 1.3 MultiJet II (Euro 5/Euro 6)
- Typical Applications:
• Fiat Panda 1.3 MJ II
• Fiat 500 / 500L / 500X 1.3 MJ II
• Fiat Doblo 1.3 MJ II
• Opel Corsa 1.3 CDTI (new gen)
• Suzuki Swift / SX4 1.3 DDiS (shared FCA engine)

II. Vehicle / Engine Application & Technical Data

Primary Vehicle Application: Fiat 1.3 MultiJet II (Euro 5–6 55–70–75–95 HP variants).
Engine Type: 1.3L Common Rail Diesel (SDE / MultiJet II generation).
Injector Technology: BOSCH Solenoid-Type Common Rail Injector.
Nozzle Type: DLLA139P2229 – high-precision multi-hole nozzle for small-displacement CR engines.
Technical Characteristics:
- Number of Holes: 7 (standard for 1.3 MJ II atomization)
- Hole Diameter: approx. 0.114–0.128 mm (varies by engine calibration)
- Spray Angle: 139°
- Operating Pressure: 1600–1800 bar (MultiJet II platform)
- Emission Standard Compatibility: Euro 5 / Euro 6
- Material: High-strength tool steel, heat-treated, anti-wear coated.
- Fuel Compatibility: EN 590 Diesel / B7 Biodiesel blends.
- Improved Features: Optimized atomization for low emissions, reduced noise, and improved cold start characteristics.

Common Failure Symptoms:
- Hard cold start
- Poor acceleration or turbo lag
- Increased fuel consumption
- Black or gray smoke
- Excessive return flow causing rail-pressure drop

III. Critical Technician Notes (MUST-DO)

1. Injector Coding: Always perform IMA/ISA coding using MultiECUScan or OEM Fiat diagnostic tools after replacement.
2. Sealing Components: Install new copper washers and O-rings every time; old seals lead to compression leakage.
3. Injector Bolts: Use new clamp bolts; torque-angle method required for proper seating.
4. Clean Installation: MultiJet injectors are extremely sensitive to contamination – keep rails, lines, and seats perfectly clean.
5. System Verification: After installation perform:
• Leak-back test
• Pilot correction test
• Rail pressure stability test
• Injector balance check
6. Fuel System Notes: Replace fuel filter during injector service; MultiJet systems are sensitive to water and dirty diesel.
7. Seat Reconditioning: If carbon is present, reface the injector seat to avoid blow-by and knocking.