BM5G-9F593-BA
BOSCH BM5G-9F593-BA Fuel Injector Ford Fiesta ST Fusion Escape 1.6L EcoBoost CM5Z-9F593-A 0261500155
BM5G9F593BA, CM5Z-9F593-A, CM5Z9F593A, 0261500155, 0261500156Bosch HDEV5 Solenoid Valve Actuator6-Hole Precision Direct-Injection Atomization Nozzle150 barProduct Overview
The Bosch BM5G-9F593-BA (Bosch production part numbers 0261500155 and 0261500156, Ford service reference CM5Z-9F593-A, and Volvo reference 31336688) is the authentic original equipment high-pressure solenoid gasoline direct injection (GDI) fuel injector developed for Ford's popular 1.6-liter EcoBoost turbocharged 4-cylinder engine platform. Operating at pressures up to 150 bar (2,175 psi), this Bosch HDEV5 high-speed injector is factory equipment on the spirited Ford Fiesta ST (2014-2019), Ford Escape 1.6L (2013-2016), Ford Fusion (2013-2014), Ford Focus 1.6 EcoBoost, and Volvo S60/V60 T3 and T4 models.
Always verify the original manufacturer reference stamped on your component before ordering. For BM5G-9F593-BA, inspect matching OE cross-references and ensure related high-pressure seals, followers, or grommets are renewed during service.
Vehicle & Engine Fitment
| Vehicle | Engine | Years |
|---|---|---|
| Ford Fiesta ST | Ford 1.6L EcoBoost DOHC 16V Turbocharged I-4 (JTJA, JTMA, JTBA, B4164T) | 2014-2019 |
| Ford Escape / Kuga | Ford 1.6L EcoBoost DOHC 16V Turbocharged I-4 (JTJA, JTMA, JTBA, B4164T) | 2013-2016 |
| Ford Fusion / Mondeo Mk5 | Ford 1.6L EcoBoost DOHC 16V Turbocharged I-4 (JTJA, JTMA, JTBA, B4164T) | 2013-2014 |
| Volvo S60 / V60 T3 T4 | Ford 1.6L EcoBoost DOHC 16V Turbocharged I-4 (JTJA, JTMA, JTBA, B4164T) | 2011-2015 |
Technical Specifications
| Specification | Value |
|---|---|
| System Type | Bosch HDEV5 High-Pressure Solenoid Direct Injection |
| Maximum Operating Rail PressureCore Spec | |
| Solenoid Coil Resistance | 1.5 - 2.5 Ohms @ 20°C (Low-Impedance Peak-and-Hold GDI Drive) |
| Spray Pattern | 6-Hole Multi-Directional Asymmetric Cone Spray Pattern |
| Fuel Rail Mounting Bolts Torque | 20 N·m (15 lb-ft) tightened evenly to engine cylinder head |
| Injector Retaining Clip Fastener | 10 N·m (89 in-lb) hold-down clamp securing injectors in head |
| Combustion Chamber Seal | Virgin Solid PTFE Teflon Seal Ring (Requires Sizing Tool) |
| Fuel Rail Upper Seal | Viton High-Pressure Fluorocarbon O-Ring |
| Manufacturer | Robert Bosch GmbH (Tier-1 OEM for Ford Motor Company & Volvo) |
| Production Reference | Bosch 0261500155 / Ford BM5G-9F593-BA |
| Operating PressureCore Spec |
Installation Tips
- [
- {
- "step": 1,
- "title": "High-Pressure Direct Injection Line Depressurization",
- "instruction": "Remove low-pressure fuel pump fuse in passenger cabin. Crank engine until it stalls to purge residual rail pressure. Disconnect negative battery ground cable before starting disassembly."
- },
- {
- "step": 2,
- "title": "Intake Manifold & Wiring Harness Clearance",
- "instruction": "Unbolt upper intake plenum, throttle body ducting, and PCV hose assembly. Unclip the main fuel injector wiring harness connectors from all four GDI injectors."
- },
- {
- "step": 3,
- "title": "High-Pressure Fuel Rail & Retaining Clip Removal",
- "instruction": "Unscrew the high-pressure fuel supply pipe fitting. Remove the fuel rail mounting bolts and gently withdraw the aluminum fuel rail assembly together with the injectors from the cylinder head."
- },
- {
- "step": 4,
- "title": "Combustion Chamber Bore Cleaning & Teflon Seal Replacement",
- "instruction": "Clean injector combustion bores with dedicated brass cleaning brushes. If installing new injectors, verify protective plastic covers are intact; if resealing, use specialized pilot sizing cones to install new virgin PTFE Teflon seals."
- },
- {
- "step": 5,
- "title": "Injector Installation, Rail Alignment & Specified Torquing",
- "instruction": "Push injectors into fuel rail pockets and align into cylinder head bores. Torque fuel rail mounting bolts to 20 N\u00b7m (15 lb-ft) and injector hold-down clips to 10 N\u00b7m (89 in-lb). Reassemble intake manifold."
- }
- ]
Diagnostic Trouble Codes & Fault Protocols
Common diagnostic trouble codes (DTCs) triggered when this common rail injector experiences wear, circuit faults, or calibration drift:
Fuel Rail / System Pressure Too Low
Excessive internal backleak from worn control valve seats drops common rail pressure below target under engine load.
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.
Cylinder Misfire & Balancing Deviation
Carbon-clogged nozzle spray holes or missing IMA calibration causes uneven cylinder contribution. Recode ECM and verify washer seating.
Fuel Rail / System Pressure Too High
Spill line backpressure or stuck metering valve prevents rail depressurization, creating overpressure risks under load.
Technical Diagnostic & Service Protocols
Authoritative field procedures, diagnostic testing thresholds, and service SOPs for this assembly.