13518641789
BOSCH 13518641789 Pompa Alta Pressione BMW M340i 540i X3 Supra B58 TU 3.0T
8641789, 13518631642, 8631642, 0261520521Integrated Electronic Quantity Control Solenoid Valve-350 barApplicazioni Veicolo e Motore
Specifiche Tecniche
| Specifica | Valore |
|---|---|
| Tipo di sistema | Bosch HDP6 350-bar Mechanical Plunger High-Pressure Fuel Pump |
| Pressione di esercizioSpecifica Chiave | |
| Drive Actuation | Triple-lobe exhaust camshaft actuation via roller tappet bucket |
| Mounting Flange Bolt Torque | 13 N·m (alternately tightened in half-turn increments) |
| High Pressure Line Torque | 28 N·m (rigid high-pressure delivery pipe union) |
| Quantity Control Valve ResistanceSpecifica Chiave | |
| Codici guasto tipici | P0087 (Fuel Rail Pressure Low), P102A (Fuel Rail Volume Mismatch), P0171 (Lean Fuel Trim) |
| Workshop Precaution | Inspect roller tappet for surface galling; replace high-pressure fuel supply pipe if flare fitting shows deformation |
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
- [
- {
- "step": 1,
- "title": "Depressurize Fuel Rail & Disconnect 12V Battery",
- "instruction": "Disable electric low-pressure in-tank pump fuse and crank until rail pressure falls below 5 bar. Disconnect battery negative terminal."
- },
- {
- "step": 2,
- "title": "Remove Engine Strut Braces & Acoustic Engine Cover",
- "instruction": "Remove upper strut braces over valve cover. Unclip acoustic sound suppression shield around high-pressure pump chamber."
- },
- {
- "step": 3,
- "title": "Unbolt High Pressure Unions & Flange Bolts Evenly",
- "instruction": "Disconnect flow metering solenoid harness. Unthread high-pressure pipe flare nut (28 N·m). Back out two flange mounting bolts evenly half-turn at a time."
- },
- {
- "step": 4,
- "title": "Install HPFP, Torque Mounting Bolts & Check for Leaks",
- "instruction": "Lubricate roller tappet bucket with clean engine oil. Seat pump and torque flange bolts to 13 N·m. Tighten high pressure line to 28 N·m. Verify zero leaks."
- }
- ]
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.