BOSCH
A2640900200
View Specs
SolenoidGasoline Direct Injection (GDI)Euro 56
BOSCH A2640900200 High Pressure Fuel Pump Mercedes C260 C300 E300 GLC300 1.5T 2.0T M264 M254 0261520521
OE REFERENCE
2640900200, A2640900100, 2640900100, HPP0038, HM10046CONTROL VALVE
-NOZZLE
-RAIL PRESSURE
200 barEMISSIONEuro 5 / Euro 6
WARRANTY12 Months
02
Vehicle & Engine Fitment
| Vehicle | Engine | Years |
|---|---|---|
| Mercedes-Benz C260 / C300 (W205 / W206) & E300 / E350 (W213) | 1.5L & 2.0L Turbo EQ Boost 48V (M264 / M254) | 2018-2024 |
| Mercedes-Benz GLC 300 (X253 / X254) / GLE 350 (V167) / CLS 350 | 2.0L Turbocharged DOHC 16V (M264.920 / M254.920) | 2019-2024 |
03
Technical Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | A2640900200 |
| Manufacturer Brand | BOSCH |
| Component Type | Mechanical High Pressure Fuel Pump (HPFP) |
| Engine Application | Mercedes-Benz 1.5L & 2.0L Turbocharged DOHC 16V M264 / M254 EQ Boost |
| Operating PressureCore Spec | |
| Mounting Torque (Flange / Bracket) | 20 N-m (15 lb-ft) |
| Fuel Line / Rail Torque | 27 N-m (20 lb-ft) |
| Primary Diagnostic Fault Codes | P0087, P0088, P053F, P0171 |
04
Installation Tips
- Depressurize Fuel System: Pull fuel pump fuse or disconnect LPFP harness. Crank engine 5-8 seconds until it stalls to drop residual rail pressure below 5 bar.
- Clean Surrounding Cavity: Blow compressed air around cylinder head bore or pump flange cavity to prevent dirt ingress into the fuel rail.
- Lubricate & Fit Seals: Inspect Teflon combustion seals or O-rings. Coat lightly with clean motor oil (do not use grease) to avoid tearing during insertion.
- Torque to Factory Specification: Hand-thread bolts evenly. Tighten mounting fasteners to 20 N-m (15 lb-ft), and torque fuel line fittings to 27 N-m (20 lb-ft).
- Prime & Leak Check: Cycle ignition to RUN position 3 times (5 seconds each) to build low-side pressure. Inspect fittings for leaks before starting engine.
05
Diagnostic Trouble Codes & Fault Protocols
Common diagnostic trouble codes (DTCs) triggered when this common rail injector experiences wear, circuit faults, or calibration drift:
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.
WORKSHOP PROTOCOLS
Technical Diagnostic & Service Protocols
Authoritative field procedures, diagnostic testing thresholds, and service SOPs for this assembly.
COMMON RAIL WORKSHOP DIAGNOSTICS
Read Technical ProtocolCommon Rail High-Pressure Pump Diagnostics Guide
COMMON RAIL WORKSHOP DIAGNOSTICS
Read Technical ProtocolFuel Metering Valve (IMV/SCV) Diagnostics Guide
OBD-II DIAGNOSTIC PROTOCOL
Read Technical ProtocolP0087 Low Rail Pressure Diagnosis Guide
COMMON RAIL WORKSHOP DIAGNOSTICS
Read Technical Protocol