Description
The BOSCH MD1CE200-LE-4.50 is an electronic engine control unit designed for large-engine management applications. The MD1CE200-LE serves as a central interface between the higher-level control system and the engine, coordinating key functions including fuel supply, air control and fuel injection. Bosch specifies the platform for diesel, gas and dual-fuel engines, with applications including large marine and industrial power systems. The ECU can operate as a complete engine controller or as an intelligent driver for secondary fuel-system components, depending on the system architecture.

MD1CE200-LE-4.50
📋 Product Parameters
| Parameter | Specification |
|---|---|
| Brand | BOSCH |
| Model | MD1CE200-LE-4.50 |
| Product Type | Electronic Engine Control Unit |
| ECU Family | MD1CE200-LE |
| Application | Large Engine Management |
| Engine Types | Diesel / Gas / Dual-Fuel |
| Single ECU Capacity | Up to 12 cylinders |
| Paired ECU Capacity | Up to 24 cylinders |
| Nominal System Voltage | 24 VDC |
| Operating Temperature | -40°C to +85°C |
| Booster Voltage | Software-adjustable range; verify exact configuration |
| Main Functions | Fuel Supply / Air Control / Fuel Injection |
| Processor Architecture | Bosch MD1 high-performance multi-core platform |
| Installation | Engine Control System |
| Condition | New |
⚙️ Key Features & System Integration
- Designed for large-engine electronic management applications.
- Central ECU between the supervisory control system and the engine.
- Controls fuel supply, air management and fuel injection functions.
- Supports diesel, gas and dual-fuel engine configurations.
- A single MD1CE200-LE can control up to 12 cylinders; paired ECU configurations can support engines up to 24 cylinders.
- Can operate as a complete engine controller or as an intelligent driver for selected fuel-system functions.
- Suitable for integration with Bosch large-engine common-rail and fuel-injection systems.
- Bosch identifies the platform for applications requiring marine classification compliance.
- Modular hardware design supports integration into different engine-management architectures.
- Active cooling connection and modular plug-in construction are part of the MD1CE200-LE design.
🔌 Engine Control & Application
The MD1CE200-LE is designed to coordinate several engine functions through a centralized electronic control architecture. Bosch describes the ECU as linking fuel supply, air control, fuel injection and other engine-management functions into an integrated system. It can also control actuators for diesel, gas and dual-fuel applications, making the platform suitable for different large-engine fuel strategies.
The -4.50 designation should be matched exactly when replacing an existing ECU. Software configuration, engine calibration, wiring, connectors and application-specific programming can affect interchangeability even when another MD1CE200-LE unit has a similar physical design.
🛠️ Replacement Notes
Before installation, verify:
- Exact ECU designation: MD1CE200-LE-4.50
- Bosch identification and hardware markings
- Software/calibration version
- Engine model and cylinder configuration
- Connector and wiring configuration
- Fuel-system architecture
- Existing ECU configuration and commissioning requirements
The ECU is a system-level engine-control component and should not be treated as a universal plug-and-play controller.
❓ FAQ
Q1: What is the BOSCH MD1CE200-LE-4.50?
A: It is an electronic engine control unit from Bosch’s MD1CE200-LE large-engine control platform.
Q2: What engines can the MD1CE200-LE control?
A: Bosch specifies the platform for diesel, gas and dual-fuel engines.
Q3: How many cylinders can one ECU control?
A: Bosch specifies up to 12 cylinders with one ECU, while paired units can support up to 24 cylinders.
Q4: What is the operating temperature range?
A: Bosch specifies -40°C to +85°C for the MD1CE200-LE platform.
Q5: Is MD1CE200-LE suitable for marine engines?
A: Yes. Bosch identifies the platform for large-engine applications and states that it fulfills marine classification requirements.
🔎 Product Keywords
BOSCH MD1CE200-LE-4.50, Bosch MD1CE200, MD1CE200-LE ECU, Bosch Engine Control Unit, Bosch Large Engine ECU, Marine Engine ECU, Diesel Engine Control Unit, Gas Engine ECU, Dual-Fuel Engine ECU, Bosch Marine Automation, Engine Management System, Common Rail Engine Control, Large Engine Control Module, Bosch Electronic Engine Management, Marine Engine Spare Parts
🔧 Related BOSCH Large-Engine Models
- BOSCH MD1CE200-LE – Large Engine Control Unit
- BOSCH MD1CE200 – Electronic Engine Control Unit
- BOSCH CRIN-LE – Common-Rail Injector for Large Engines
- BOSCH CP9 – High-Pressure Pump
- BOSCH LEGV50 – Large Engine Gas Valve
- BOSCH LEGV400 – Large Engine Gas Valve
- BOSCH DNOX-LE – Large Engine Exhaust Aftertreatment System
- BOSCH MCRS – Modular Common-Rail System
- BOSCH MD1CE200-LE Marine ECU – Marine Engine Control
- BOSCH Large Engine FIE Control System – Fuel Injection Electronics
🌐 Product Information
For marine engine automation, industrial control and Bosch engine-control spare parts, visit newplcdcs.com.
