06H127025Q
HITACHI 06H127025Q Hochdruckpumpe VW Golf GTI Passat Audi A4 A5 Q5 2.0 TSI EA888
06H127025E, 06H127025G, 06H127025K, 06H127025M, HPP0005Integrated N276 Fuel Pressure Regulating Valve-150 barFahrzeug- und Motorverwendung
| Fahrzeug | Motor | Baujahre |
|---|---|---|
| Volkswagen Golf VI GTI 2.0 TSI | Volkswagen / Audi EA888 Gen 1 & Gen 2 (1.8L & 2.0L TSI / TFSI CCTA / CAEB / CDNC) | 2009-2013 |
| Audi A4 B8 2.0 TFSI | Volkswagen / Audi EA888 Gen 1 & Gen 2 (1.8L & 2.0L TSI / TFSI CCTA / CAEB / CDNC) | 2008-2015 |
| Audi Q5 8R 2.0 TFSI | Volkswagen / Audi EA888 Gen 1 & Gen 2 (1.8L & 2.0L TSI / TFSI CCTA / CAEB / CDNC) | 2009-2015 |
Technische Daten
| Spezifikation | Wert |
|---|---|
| Systemtyp | Hitachi Mechanical Plunger Direct Injection Fuel Pump |
| BetriebsdruckKernwert | |
| Actuation Mechanism | Camshaft 4-lobe driven via roller tappet 06L109311 |
| Mounting Flange Torque | 20 N·m (tightened evenly in diagonal sequence) |
| High Pressure Line Torque | 27 N·m Flare Nut Connection |
| Low Pressure Fitting Torque | 15 N·m banjo bolt connection |
| Typische Fehlercodes | P0087 (Fuel Rail Pressure Too Low), P2293 (Fuel Pressure Regulator 2 Performance), P0088 |
| Workshop Precaution | Always replace roller tappet follower 06L109311 and lubricate pump piston tip with clean engine oil before installation |
Passende Kraftstoffinjektoren (Kraftstoffkreislauf-Baugruppe)
Wird direkt von dieser Hochdruckpumpe versorgt. Rücklaufmenge prüfen, wenn der Raildruck beim Starten nicht ansteigt.
Einbauhinweise
- [
- {
- "step": 1,
- "title": "Relieve Rail Pressure & Disconnect Low Pressure Line",
- "instruction": "Depressurize fuel system using scan tool test function or fuse pull. Remove low-pressure spring clamp and detach rubber feed line."
- },
- {
- "step": 2,
- "title": "Detach High Pressure Steel Pipe",
- "instruction": "Loosen steel fuel line flare nut (27 N·m) while holding pump outlet fitting with counter-wrench to prevent adapter distortion."
- },
- {
- "step": 3,
- "title": "Remove Flange Screws & Inspect Roller Tappet 06L109311",
- "instruction": "Unscrew two M8 flange bolts evenly in alternating half-turns. Remove pump and withdraw roller tappet 06L109311. Check roller for flat spots or pin play."
- },
- {
- "step": 4,
- "title": "Install Pump, Torque Fasteners & Bleed Air",
- "instruction": "Lubricate new O-ring seal. Tighten mounting bolts diagonally to 20 N·m. Torque steel line to 27 N·m. Cycle ignition 3 times before starting engine."
- }
- ]
Fehlercodes (DTC) & Diagnoseprotokolle
Häufige Diagnose-Fehlercodes (DTCs), die ausgelöst werden, wenn dieser Common-Rail-Injektor Verschleiß, Schaltkreisfehler oder Kalibrierungsabweichungen aufweist:
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.
Technische Diagnose- & Service-Protokolle
Verifizierte Prüfverfahren, Fehlercode-Grenzwerte und Werkstatt-SOPs für diese Baugruppe.