13517616170
BOSCH 13517616170 Pompa Alta Pressione BMW 335i 435i M2 M3 3.0L N55
13517594419, 13517592881, 0261520144, 0261520143, GDP104, HM10014Integrated Electromagnetic Digital Flow Quantity Control Valve-200 barSpecifiche Tecniche
| Specifica | Valore |
|---|---|
| Tipo di sistema | BMW HPI 200-bar High-Pressure Direct Gasoline Injection |
| Operating Fuel Pressure | 200 bar (20 MPa / 2900 psi nominal peak rail pressure) |
| Pump Mechanism | Auxiliary Vacuum/Camshaft Shaft-Driven Single-Piston Plunger |
| Mounting Flange Fastener Torque | 13 N·m (115 in-lb) M8 Torx flange bolts |
| High-Pressure Steel Line Flare Nut | 25 N·m (18.4 lb-ft) rigid steel rail delivery pipe union |
| Low-Pressure Feed Line Union | 15 N·m (11 lb-ft) threaded low-pressure supply connection |
| Internal Quantity Control Solenoid | Pulse-width modulated 12V digital metering valve |
| Manufacturer | Bosch (Tier-1 OEM for BMW Group) |
| Bosch Production Reference | 0261520144 / 0261520143 |
| Pressione di esercizioSpecifica Chiave |
Pompa alta pressione abbinata (Gruppo circuito carburante)
Funziona sullo stesso circuito ad alta pressione Common Rail. In caso di bassa pressione rail (P0087), verificare la portata della pompa prima di sostituire gli iniettori.
Istruzioni di montaggio
- Always counter-hold the pump body outlet adapter: Loosening or tightening the metal line flare nut without holding the body hex will shear the pump internal thread boss.
- Never reuse the rubber flange O-ring: Reusing an aged radial seal causes severe oil leakage down the engine block onto the steering rack.
- Inspect drive coupling teeth: Inspect the camshaft-driven drive tang; if teeth show fretting wear, replace the intermediate drive cup to prevent sudden pump seizure.
- Mandatory ignition pre-priming: Turn ignition ON without pressing brake pedal for 10 seconds three times to run the low-pressure pump and purge all air pockets before first crank.
Codici Guasto (DTC) e Protocolli Diagnostici
Codici guasto diagnostici (DTC) comuni generati quando questo iniettore common rail presenta usura, problemi ai circuiti o scostamenti:
Fuel Rail / System Pressure Too Low
Excessive internal backleak from worn control valve seats drops common rail pressure below target under engine load.
Injector Circuit Malfunction / Open Circuit
Solenoid coil resistance drift (0.2-0.5 Ω) or piezo stack degradation triggers driver stage shutdown on affected cylinders.
Cylinder Misfire & Balancing Deviation
Carbon-clogged nozzle spray holes or missing IMA calibration causes uneven cylinder contribution. Recode ECM and verify washer seating.
Fuel Rail / System Pressure Too High
Spill line backpressure or stuck metering valve prevents rail depressurization, creating overpressure risks under load.
Protocolli Tecnici di Diagnosi & Assistenza
Procedure d'officina verificate, valori soglia di test e linee guida operative per questo assieme.