BOSCH
A1770700200
View Specs
SolenoidGasoline Direct Injection (GDI)Euro 56
BOSCH A1770700200 Piezo Fuel Injector Mercedes C63 E63 S63 G63 AMG GT 4.0T V8 M177 M178 0261500424
Engine Platform:Mercedes-AMG 4.0L BiTurbo Hot-V DOHC 32V V8 (M177 / M178) →
OE REFERENCE
1770700200, A1770706200, 0261500425, FJ1302CONTROL VALVE
-NOZZLE
-RAIL PRESSURE
200 barEMISSIONEuro 5 / Euro 6
WARRANTY12 Months
02
Vehicle & Engine Fitment
| Vehicle | Engine | Years |
|---|---|---|
| Mercedes-Benz AMG C63 / E63 S / S63 / GLC63 / GLE63 (W205 / W213 / W222) | 4.0L V8 BiTurbo Hot-V Direct Injection (M177) | 2015-2023 |
| Mercedes-Benz AMG G63 (W463A) / AMG GT / GT S / GT C / GT R (C190) | 4.0L V8 BiTurbo Direct Injection (M177 / M178) | 2015-2024 |
03
Technical Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | A1770700200 |
| Manufacturer Brand | BOSCH |
| Component Type | Direct Fuel Injector |
| Engine Application | Mercedes-AMG 4.0L BiTurbo Hot-V DOHC 32V V8 (M177 / M178) |
| Operating PressureCore Spec | |
| Mounting Torque (Flange / Bracket) | 14 N-m (10 lb-ft) |
| Fuel Line / Rail Torque | 25 N-m (18 lb-ft) |
| Primary Diagnostic Fault Codes | P0300, P0301, P0171, P0172 |
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 14 N-m (10 lb-ft), and torque fuel line fittings to 25 N-m (18 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 ProtocolFuel Metering Valve (IMV/SCV) Diagnostics Guide
OBD-II DIAGNOSTIC PROTOCOL
Read Technical ProtocolP0087 Low Rail Pressure Diagnosis Guide
DIESEL WORKSHOP DIAGNOSTIC SOP
Read Technical ProtocolCylinder Balance & Injector Deviation Guide
ASSEMBLY & INSTALLATION PROTOCOL
Read Technical Protocol