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Catalogus / HITACHI / 03C127026R
HITACHI

03C127026R

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

HITACHI 03C127026R Hogedrukpomp VW Golf 6 Tiguan 1.4 TSI EA111

Referentiegegevens voor Bosch 03C127026R common-rail verstuiver · OEM 03C127026P, 03C127026M, 03C127026J, HPP0005, HM10018 · Toepassing Volkswagen 1.4L TSI DOHC 16V Twincharger / Turbo EA111 (CAXA / CAVE / CAVD / CTHD / BLG / BMY)
Motorplatform:Volkswagen 1.4L TSI DOHC 16V Twincharger / Turbo EA111 (CAXA / CAVE / CAVD / CTHD / BLG / BMY) →
OE-REFERENTIE03C127026P, 03C127026M, 03C127026J, HPP0005, HM10018
REGELKLEPIntegrated Fuel Metering Valve N290
NOZZLE / VERSTUIVERTIP-
RAILDRUK150 bar
EMISSIEEuro 4 / Euro 5
GARANTIE12 Maanden
01

Compatibele verstuivers

OEM-ref.
02

Voertuig- & motortoepassingen

VoertuigMotorBouwjaren
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 specificaties

SpecificatieWaarde
WerkdrukKernspecificatie
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

Montagetips

  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

Foutcodes (DTC) & Diagnoseprotocollen

Veelvoorkomende diagnostische foutcodes (DTC's) die optreden wanneer deze common rail-injector slijtage, circuitstoringen of kalibratieafwijkingen vertoont:

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
Bekijk alle 61 diesel-foutcodes in onze werkplaatshub ->
WERKPLAATS-HANDLEIDINGEN

Technische Diagnose- & Serviceprotocollen

Geverifieerde werkplaatsprocedures, testdrempels en richtlijnen voor deze component.

COMMON RAIL WERKPLAATSDIAGNOSE

Hogedrukpomp Diagnose: Foutcode P0087 & Bosch CP4 Test

Common rail hogedrukpomp diagnose: aanzuigvacuüm, CP4 metaalschilfers, plunijerslijtage, luchtinslag en P0087 warmstartproblemen. Werkplaatshandboek.

Lees technisch protocol
COMMON RAIL WERKPLAATS DIAGNOSE

Brandstof Doseerklep IMV SCV Diagnose: P0088 Testen

Diagnosegids voor brandstof doseerkleppen (IMV / SCV / ZME): NO vs NC werking, spoelweerstand, PWM aansturing en oplossen van foutcodes P0088 en P0089.

Lees technisch protocol
OBD-II DIAGNOSEPROTOCOL

Diagnosehandleiding DTC P0087: Te lage raildruk

Stapsgewijs werkplaatsprotocol voor OBD-II DTC P0087 (brandstofraildruk te laag). 5-staps foutzoekschema: retourlektest verstuivers, SCV-doseerklep, PRV-overdrukklep en hogedrukpomp.

Lees technisch protocol
COMMON RAIL WERKPLAATSDIAGNOSE

Drukbegrenzingsventiel Common Rail Testen: P0087 & Lektest

Diagnosegids voor het common-rail drukbegrenzingsventiel (DBV/PRV). Vind oorzaken van warm slecht starten, P0087 raildrukverlies en retourlekmeting.

Lees technisch protocol