BOSCH
0261520215
Technische Daten
SolenoidMercedes-Benz CGI Stratified Charged Gasoline InjectionEuro 56
BOSCH 0261520215 Hochdruckpumpe Mercedes C250 E250 SLK250 1.8L M271 EVO CGI
Motorenplattform:Mercedes-Benz M271 EVO (1.8L CGI Turbo M271.820 / M271.860) →
OE-REFERENZ
A2710702201, 2710702201, A2710703501, 2710703501, A2710703701, 2710703701, 0261520216STEUERVENTIL
Integrated Pulse-Width Modulated Electric Spill Valve (SCV)EINSPRITZDÜSE
-BETRIEBSDRUCK
140 barABGASNORMEuro 5 / Euro 6
GARANTIE12 Monate
02
Fahrzeug- und Motorverwendung
| Fahrzeug | Motor | Baujahre |
|---|---|---|
| Mercedes-Benz C-Class W204 C250 CGI | Mercedes-Benz M271 EVO (1.8L CGI Turbo M271.820 / M271.860) | 2009-2014 |
| Mercedes-Benz E-Class W212 E250 CGI | Mercedes-Benz M271 EVO (1.8L CGI Turbo M271.820 / M271.860) | 2009-2016 |
| Mercedes-Benz SLK-Class R172 SLK250 | Mercedes-Benz M271 EVO (1.8L CGI Turbo M271.820 / M271.860) | 2011-2016 |
03
Technische Daten
| Spezifikation | Wert |
|---|---|
| Systemtyp | Bosch HDP-5 Mechanical Direct Injection High Pressure Pump |
| BetriebsdruckKernwert | |
| Actuation Mechanism | Exhaust Camshaft Twin-Lobe Mechanical Driven |
| Mounting Flange Torque | 12 N·m M6 Fasteners |
| High Pressure Line Torque | 28 N·m Flare Nut |
| SteuerventilKernwert | |
| Typische Fehlercodes | P0087 (Rail Pressure Low), P0171 (System Lean Bank 1), P0172 (Fuel Dilution Rich) |
| Workshop Precaution | Inspect engine oil smell and level before replacing to prevent bearing damage from fuel dilution |
04
Einbauhinweise
- [
- {
- "step": 1,
- "title": "Depressurize Fuel Rail & Isolate High-Pressure Circuit",
- "instruction": "Pull fuel pump relay in rear fuse box and crank engine for 10 seconds. Verify scan tool low pressure fuel reading falls under 5 bar before cracking flare nuts."
- },
- {
- "step": 2,
- "title": "Inspect Engine Oil for Fuel Dilution",
- "instruction": "Pull oil dipstick. If oil level is elevated or smells strongly of gasoline due to internal plunger seal blowby, schedule immediate oil and filter change."
- },
- {
- "step": 3,
- "title": "Clean Cylinder Head Bore & Lubricate O-Ring",
- "instruction": "Clean mounting bore on cylinder head. Coat new Viton O-ring with clean engine oil. Never use silicone sealant on flange face."
- },
- {
- "step": 4,
- "title": "Torque Flange Fasteners Alternately",
- "instruction": "Position pump on cylinder head while camshaft is at base circle. Thread mounting bolts hand-tight, then torque alternately to 12 N\u00b7m."
- },
- {
- "step": 5,
- "title": "Connect High-Pressure Hard Line & Torque",
- "instruction": "Align high-pressure hard line square into pump discharge port. Finger-tighten fitting, then secure flare nut to exactly 28 N\u00b7m."
- }
- ]
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.
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.
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.
P0088High
Fuel Rail / System Pressure Too High
Spill line backpressure or stuck metering valve prevents rail depressurization, creating overpressure risks under load.
WERKSTATT-LEITFÄDEN
Technische Diagnose- & Service-Protokolle
Verifizierte Prüfverfahren, Fehlercode-Grenzwerte und Werkstatt-SOPs für diese Baugruppe.
COMMON-RAIL WERKSTATT-DIAGNOSE
Technischen Leitfaden lesenHochdruckpumpe Diagnose: P0087 Fehler & Bosch CP4 Test
COMMON-RAIL WERKSTATT-DIAGNOSE
Technischen Leitfaden lesenZumesseinheit ZME IMV SCV Diagnose: P0088 Fehlertest
OBD-II-DIAGNOSEPROTOKOLL
Technischen Leitfaden lesenDiagnoseleitfaden P0087: Raildruck zu niedrig
COMMON-RAIL WERKSTATT-DIAGNOSE
Technischen Leitfaden lesen