BLLA 152 P 2137

BOSCH INJECTOR NOZZLE: DLLA152P2137 – FULL SPECIFICATION

I. Key Identification & Compatible Injectors

Nozzle (Injector Tip) P/N: DLLA152P2137
BOSCH MEC / Catalog Number: 433172137 (0 433 172 137)
System Manufacturer: BOSCH Common Rail Diesel Injection System.

Compatible Injector Assembly P/N(s):
- BOSCH Injector References: 0 445 110 340, 0 445 110 739
- OEM / Vehicle Manufacturer: PEUGEOT, CITROËN, FORD, MAZDA
Typical Applications (1.6 HDi / TDCi / DV6):
• Peugeot 207 / 208 / 307 / 308 / 3008
• Peugeot Partner / Expert
• Citroën C3 / C4 / C5 / Berlingo
• Ford Focus / Fiesta / C-Max 1.6 TDCi
• Mazda 3 / Mazda 5 1.6d (shared DV6 engine design)

II. Vehicle / Engine Application & Technical Data

Primary Vehicle Application: Passenger cars and light commercial vehicles with 1.6 L DV6 HDi / TDCi engines.
Engine Type: 1.6 L inline-4 Common Rail Diesel (DV6TED4 / DV6C / DV6DTED).
Injector Technology: BOSCH Common Rail Solenoid Injector (CRI).
Nozzle Type: DLLA152P2137 — multi-hole precision nozzle optimized for clean combustion and low emissions.

Technical Characteristics:
- Number of Holes: 7
- Spray Angle: 152°
- Operating Pressure: 1600–1800 bar
- Material: High-speed, heat-treated tool steel for long wear resistance
- Needle: Black-coated precision needle (anti-friction / anti-wear surface)
- Fuel Compatibility: EN 590 Diesel / Biodiesel blends up to B7
- Emission Standard Compatibility: Euro 4 / Euro 5 (DV6 engine family)
- Performance Features: Smooth idle, low fuel consumption, reduced black smoke, and stable injection across RPM range.
Common Fault Symptoms:
- Difficult cold start
- Rough idle or metallic injector knock
- High return flow (imbalance test failure)
- Black or white exhaust smoke
- Loss of power or turbo hesitation
- Increased fuel consumption

III. Critical Technician Notes (MUST-DO)

1. Clean Installation: Ultrasonic-clean injectors before fitting the new nozzle; any contamination may damage DV6 injectors.
2. Sealing Components: Always replace copper washers, O-rings, return-line seals — failure leads to leaks and blow-by.
3. Injector Mounting: Use new clamp bolts; torque-angle tightening is mandatory on DV6 engines.
4. Spray Pattern & Leak-Back Test: After installation, validate injection spray and perform injector leak-back test.
5. Calibration / Coding: Use OEM diagnostic tools (Peugeot Diagbox, Ford IDS, etc.) to perform injector coding (IMA/ISA).
6. Fuel System Quality: Replace fuel filter during injector service; DV6 engines are sensitive to water and contamination.
7. Seat Reconditioning: Clean or reface injector seat if carbon buildup is present to prevent blow-by and compression leakage.
8. Long-Term Maintenance: Check injector corrections during servicing to detect early nozzle wear.
9. Handling & Storage: Store nozzles in sealed, clean packaging; avoid impact to tip or needle.