Suche
Katalog / HITACHI / 03C127026R
HITACHI

03C127026R

Technische Daten
SolenoidHitachi / Bosch FSI/TSI 150-bar High Pressure Direct InjectionEuro 45

HITACHI 03C127026R Hochdruckpumpe VW Golf 6 Tiguan 1.4 TSI EA111

Referenzdaten für Bosch 03C127026R Common-Rail-Injektor · OEM 03C127026P, 03C127026M, 03C127026J, HPP0005, HM10018 · Anwendung Volkswagen 1.4L TSI DOHC 16V Twincharger / Turbo EA111 (CAXA / CAVE / CAVD / CTHD / BLG / BMY)
Motorenplattform:Volkswagen 1.4L TSI DOHC 16V Twincharger / Turbo EA111 (CAXA / CAVE / CAVD / CTHD / BLG / BMY) →
OE-REFERENZ03C127026P, 03C127026M, 03C127026J, HPP0005, HM10018
STEUERVENTILIntegrated Fuel Metering Valve N290
EINSPRITZDÜSE-
BETRIEBSDRUCK150 bar
ABGASNORMEuro 4 / Euro 5
GARANTIE12 Monate
01

Kompatible Injektoren

OE-Vergleichsnr.
02

Fahrzeug- und Motorverwendung

FahrzeugMotorBaujahre
Volkswagen Golf Mk5 / Mk6 / Scirocco / TiguanVolkswagen 1.4L TSI DOHC 16V Twincharger / Turbo EA111 (CAXA / CAVE / CAVD / CTHD / BLG / BMY)2006-2015
Audi A1 8X / A3 8PVolkswagen 1.4L TSI DOHC 16V Twincharger / Turbo EA111 (CAXA / CAVE / CAVD / CTHD / BLG / BMY)2007-2014
03

Technische Daten

SpezifikationWert
BetriebsdruckKernwert
Pump TechnologySingle Plunger Mechanical Camshaft-Driven HPFP
Flow ControlIntegrated Solenoid Metering Valve (N290)
Mounting Flange Torque20 N·m
High Pressure Line Torque27 N·m
Drive TypeIntake Camshaft Driven with Roller Tappet
Fuel TypeGasoline / Petrol Direct Injection (TSI / TFSI / Twincharger)
OE Cross References03C127026R, 03C127026P, 03C127026M, 03C127026J, HPP0005
Failure SymptomsEPC warning lamp on acceleration, P0087 low rail pressure, hard starting, limp mode above 3000 RPM
Diagnostic TestVCDS measuring block Group 106 & 140 (Specified vs Actual Rail Pressure under boost)
04

Einbauhinweise

  1. [
  2. "Disconnect battery; pull fuel pump fuse and crank engine for 5 seconds to depressurize fuel lines.",
  3. "Disconnect electrical connector to N290 metering valve and unfasten low-pressure feed hose clamp.",
  4. "Counter-hold pump discharge union and loosen high-pressure steel tube flare nut using a flare wrench.",
  5. "Loosen the two M6 mounting bolts evenly in alternating turns to release internal spring tension evenly.",
  6. "Withdraw HPFP and inspect roller tappet in the cylinder head bore for flat spots or surface galling.",
  7. "Fit a new sealing O-ring lubricated with clean engine oil; seat pump into mounting bore.",
  8. "Tighten mounting flange bolts progressively in alternating steps to 20 N·m.",
  9. "Hand-thread high-pressure line flare nut until seated, then torque to 27 N·m; reconnect N290 connector.",
  10. "Cycle ignition several times to bleed air; start engine and inspect all joints for leaks."
  11. ]
05

Fehlercodes (DTC) & Diagnoseprotokolle

Häufige Diagnose-Fehlercodes (DTCs), die ausgelöst werden, wenn dieser Common-Rail-Injektor Verschleiß, Schaltkreisfehler oder Kalibrierungsabweichungen aufweist:

P0087Critical

Fuel Rail / System Pressure Too Low

Excessive internal backleak from worn control valve seats drops common rail pressure below target under engine load.

P0087 Guide →🧪 Backleak Calculator
P0201 - P0208High

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.

P0201 Circuit Guide →
P0300 / P0301+High

Cylinder Misfire & Balancing Deviation

Carbon-clogged nozzle spray holes or missing IMA calibration causes uneven cylinder contribution. Recode ECM and verify washer seating.

P0300 Misfire Protocol →💻 IMA Coding Tool📐 Washer Thickness
P0088High

Fuel Rail / System Pressure Too High

Spill line backpressure or stuck metering valve prevents rail depressurization, creating overpressure risks under load.

P0088 Guide →📊 Rail Pressure Converter
Alle 61 Diesel-Fehlercodes in unserem Werkstatt-Hub durchsuchen ->
WERKSTATT-LEITFÄDEN

Technische Diagnose- & Service-Protokolle

Verifizierte Prüfverfahren, Fehlercode-Grenzwerte und Werkstatt-SOPs für diese Baugruppe.

COMMON-RAIL WERKSTATT-DIAGNOSE

Hochdruckpumpe Diagnose: P0087 Fehler & Bosch CP4 Test

Common-Rail Hochdruckpumpe Diagnose: Saugvakuum, CP4 Rollenabrieb Späne, Kolbenverschleiß, Luftblasen & P0087 Heißstartprobleme. Prüfbank-Leitfaden.

Technischen Leitfaden lesen
COMMON-RAIL WERKSTATT-DIAGNOSE

Zumesseinheit ZME IMV SCV Diagnose: P0088 Fehlertest

Common-Rail Zumesseinheit ZME & IMV Diagnose: Schließer vs Öffner, Spulenwiderstand, PWM Tastverhältnis, O-Ring Leckage und P0088 / P0089 Raildruck Test.

Technischen Leitfaden lesen
OBD-II-DIAGNOSEPROTOKOLL

Diagnoseleitfaden P0087: Raildruck zu niedrig

Schritt-für-Schritt-Werkstattdiagnoseprotokoll für OBD-II DTC P0087 (Kraftstoff-Raildruck zu niedrig). 5-stufiger Fehlersuchbaum: Rücklaufmengenmessung, Zumesseinheit (ZME/VCV), Druckbegrenzungsventil (DBV) und Hochdruckpumpe.

Technischen Leitfaden lesen
COMMON-RAIL WERKSTATT-DIAGNOSE

Druckbegrenzungsventil prüfen: P0087 & Heißstartprobleme

Diagnose von Common-Rail Druckbegrenzungsventilen (DBV). Ursachen für Heißstartprobleme, P0087 Raildruckverlust, Leckagemessung und Einbauhinweise.

Technischen Leitfaden lesen