MTU 8V4000Mx4 User Manual (English)

Questions and Answers:

A
Amanda ThompsonAug 19, 2025
What to do if MTU Engine does not turn when starter is actuated?
- M
  Mary DoyleAug 20, 2025
  If the MTU Engine does not turn when the starter is actuated, it could be due to several reasons: * A low or faulty battery: In this case, you should charge or replace the battery. * Faulty cable connections: Ensure that the cable connections are firmly seated. * A faulty fuse F1 in the engine wiring harness: Check the fuse and replace it if necessary, then restart the system using the key switch. * Faulty Engine cabling or starter: Check it. * Loose plug connections on Engine Control Unit: Check plug connections. * Loose plug connections on Engine Interface Module (EIM): Check plug connections. * Engine blocked (engine cannot be barred manually): Contact Service.
D
Dr. Tracey JonesAug 22, 2025
What to do if MTU Engine turns on starting but does not fire?
- L
  lbatesAug 22, 2025
  If the MTU Engine turns on starting but does not fire, it could be due to: * Poor rotation by the starter. In this case, charge or replace the battery. * A low or faulty battery. Check it. * Faulty engine cabling. Contact Service.
A
Austin WatsonAug 23, 2025
Why MTU Engine has black exhaust gas?
- A
  Adam HallAug 25, 2025
  If the MTU Engine is producing black exhaust gas, it may be caused by: * A clogged air filter. Check the signal ring position of the service indicator. * A faulty fuel injector. Replace it. * Engine overload. Contact Service.
P
Paul ThompsonAug 26, 2025
What to do if MTU Engine does not reach nominal speed?
- S
  Stephanie DuncanAug 26, 2025
  If the MTU Engine does not reach nominal speed, the possible causes are: * A clogged fuel filter. Replace it. * A clogged air filter. Check the signal ring position of the service indicator. * A faulty fuel injector. Replace it. * Faulty engine cabling. Check it. * Engine overload. Contact Service.
P
Paige PatelAug 27, 2025
Why MTU Engine has blue exhaust gas?
- F
  Frances AndersonAug 27, 2025
  If the MTU Engine is producing blue exhaust gas, it could be caused by: * Too much oil in the engine. Drain engine oil. * A clogged oil separator or oil-preseparator of the crankcase breather. Replace it. * A faulty exhaust turbocharger, cylinder head, piston rings, or cylinder liner. Contact Service.
A
Alyssa ManningAug 30, 2025
What causes MTU Engine to fire unevenly?
- Y
  ylopezAug 30, 2025
  If the MTU Engine is firing unevenly, consider these potential causes: * A faulty injector. Replace it. * Faulty engine cabling. Check it. * A faulty Engine Control Unit. Contact Service.
Z
Zachary HudsonAug 31, 2025
Why MTU Engine speed not steady?
- H
  holdermonicaSep 1, 2025
  If the MTU Engine speed is not steady, it could be due to: * A faulty fuel injector. Replace it. * A faulty speed transmitter. Contact Service. * A faulty Engine Control Unit. Contact Service.
A
amyshermanSep 3, 2025
Why MTU Engine has white exhaust gas?
- C
  Courtney OconnorSep 3, 2025
  If the MTU Engine is producing white exhaust gas, it could be due to: * The engine not being at operating temperature. Run the engine to reach operating temperature. * A leaking intercooler. Contact Service.
R
Ryan AndradeSep 5, 2025
What causes high charge-air temperature in MTU Engine?
- A
  alejandrahumphreySep 5, 2025
  If the charge-air temperature is too high in the MTU Engine, possible causes include: * Incorrect coolant concentration. Check it using an MTU test kit. * A dirty intercooler. Contact Service. * The engine room air-intake temperature being too high. Check the fans and air supply/ventilation ducts.
C
connerabigailSep 7, 2025
Why MTU Engine charge-air pressure too low?
- J
  jeffreyhughesSep 7, 2025
  If the charge-air pressure is too low in the MTU Engine, it could be due to: * A clogged air filter. Check the signal ring position of the service indicator. * A dirty intercooler. Contact Service. * A faulty exhaust turbocharger. Contact Service.

MTU 8V4000Mx4 Specifications

General

Engine Type	Diesel
Configuration	V8
Fuel Type	Diesel
Fuel System	Common rail
Cooling System	Water-cooled

Summary

Safety

Correct use for all products

Defines the intended use and limitations of the product to ensure safe and proper operation.

Personnel and organizational requirements

Outlines requirements for personnel involved in operation, maintenance, and repair.

Transport

Provides instructions and safety precautions for transporting the engine and its components.

Safety regulations for startup and operation

Details essential safety measures before, during, and after engine startup and operation.

Safety precautions when working on the engine

Specifies safety measures to be taken before, during, and after maintenance or repair work.

Fire prevention and environmental protection, fluids and lubricants, auxiliary materials

Covers fire safety, disposal of fluids, and handling of auxiliary materials.

Standards for safety notices in the text

Explains the meaning and application of different safety notice symbols used in the manual.

General Information

Tightening specifications for screws, nuts and bolts

Provides torque specifications for various thread sizes and strength classes for proper assembly.

Engine side and cylinder designations

Details the standard designations for engine sides and cylinders for identification.

Product description

Provides a general overview of the engine's features, systems, and design.

Engine overview

Illustrates and labels key components of the engine for visual identification.

Sensors and actuators – Overview

Identifies and locates sensors and actuators on the engine for diagnostic purposes.

Engine wiring harness – Overview

Provides an overview of the engine's wiring harness connections and designations.

Technical Data

Engine data 8V4000M24S, Marine EPA Tier 3, IMO Tier II

Presents detailed technical specifications for the 8V4000M24S engine model.

Engine data 8V4000M54, Marine EPA Tier 3, IMO Tier II

Presents detailed technical specifications for the 8V4000M54 engine model.

Engine data 8V4000M54R, Marine EPA Tier 3, IMO Tier II

Presents detailed technical specifications for the 8V4000M54R engine model.

Firing order

Specifies the sequence of cylinder firing for the 8V engine configuration.

Main engine dimensions

Provides the key physical dimensions of the engine for installation and space planning.

Operation

LOP controls

Describes the controls and functions of the Local Operating Panel (LOP).

Putting the engine into operation after extended out-of-service periods (>3 months)

Outlines procedures for restarting the engine after prolonged periods of inactivity.

Putting the engine into operation after scheduled out-of-service-period

Details the steps for bringing the engine back into operation after planned downtime.

Starting the engine via the automation system

Explains how to start the engine using the automated system.

Operational checks

Lists essential checks to perform during engine operation for safety and performance.

Tasks after extended out-of-service periods (>3 weeks)

Specifies tasks required after periods of inactivity longer than three weeks.

Fuel treatment system control cabinet – Controls

Details the controls and indicators of the fuel treatment system's control cabinet.

Checks prior to start-up

Lists crucial checks to perform before starting the fuel treatment system.

Fuel treatment system – Initial start-up

Provides step-by-step instructions for the initial start-up of the fuel treatment system.

Fuel treatment system – Switching on

Describes the procedure for switching on the fuel treatment system.

Emergency engine shutdown via automation system

Explains how to perform an emergency shutdown using the automation system.

Engaging from LOP

Details the procedure for engaging the Local Operating Panel (LOP) mode.

Disengaging from LOP

Details the procedure for disengaging from the Local Operating Panel (LOP) mode.

Waterjet – Flushing from LOP (optional)

Describes the optional procedure for flushing the waterjet from LOP.

Engine shutdown via the automation system

Explains how to shut down the engine using the automation system.

After stopping the engine

Outlines necessary actions and checks after the engine has been stopped.

Fuel treatment system – Shutdown

Provides the procedure for safely shutting down the fuel treatment system.

Plant – Cleaning

Details the procedure for cleaning the plant and associated equipment.

Maintenance

Maintenance task reference table [QL1]

A table referencing maintenance tasks and their corresponding procedures.

Troubleshooting

Guides users through diagnosing and resolving common engine operational issues.

Control cabinet of fuel treatment system – Troubleshooting

Addresses specific troubleshooting steps for the fuel treatment system control cabinet.

Engine governor ADEC (ECU 7) fault messages for Series 4000 engines, marine application

Lists fault messages generated by the ADEC (ECU 7) governor for marine applications.

Engine Control Unit ADEC (ECU 7) – Fault codes

Provides a list of fault codes and their corresponding corrective actions for the ECU 7.

Task Description

SOLAS

Details tasks related to SOLAS requirements, including shielding.

Engine

Covers essential tasks related to the engine's mechanical operations and checks.

Cylinder Liner

Describes procedures for inspecting and examining cylinder liners.

Valve Drive

Details tasks related to the valve train components, including removal and adjustment.

Injection Pump / HP Pump

Covers tasks related to the HP pump, including filling and bore checks.

Injector

Details the replacement and installation procedures for engine injectors.

Fuel System

Describes tasks related to the engine's fuel system operations.

Fuel Filter

Provides instructions for the maintenance and replacement of fuel filters.

Exhaust Turbocharger

Covers maintenance tasks related to the exhaust turbocharger.

Charge-Air Cooling

Details checks and maintenance for the charge-air cooling system components.

Air Filter

Provides instructions for replacing and servicing the air filter.

Air Intake

Describes checks related to the air intake system's service indicator.

Starting Equipment

Covers condition checks for the engine's starting equipment.

Lube Oil System, Lube Oil Circuit

Details tasks for the engine's lube oil system, including level checks and changes.

Oil Filtration / Cooling

Covers maintenance tasks for oil filters and cooling systems.

Coolant Circuit, General, High-Temperature Circuit

Details tasks for the engine's coolant circuit, including level checks and changes.

Raw Water Pump with Connections

Covers checks and maintenance for the raw water pump.

Battery-Charging Generator

Details checks for the battery-charging generator drive coupling.

Engine Mounting / Support

Describes checks for the engine mounting and support components.

Auxiliary PTO

Covers tasks related to auxiliary power take-off components like the bilge pump.

Fuel Supply System

Details checks and maintenance for the fuel supply system components.

Wiring (General) for Engine/Gearbox/Unit

Provides general information and checks for engine, gearbox, and unit wiring.

Accessories for (Electronic) Engine Governor / Control System

Covers tasks related to accessories for the electronic engine governor and control system.

Emergency Instrumentation (Local Operating Panel)

Details cleaning procedures for the Local Operating Panel (LOP) and its connectors.

Appendix A

Abbreviations

A list of abbreviations used throughout the manual with their meanings.

MTU contact persons/service partners

Contact information for MTU support, service, and spare parts.

Appendix B

Special Tools

Lists special tools, their part numbers, and the tasks they are used for.

Related product manuals

MTU 8V4000Mx4 User Manual

Table of Contents

Questions and Answers:

MTU 8V4000Mx4 Specifications

Summary

Safety

Correct use for all products

Personnel and organizational requirements

Transport

Safety regulations for startup and operation

Safety precautions when working on the engine

Fire prevention and environmental protection, fluids and lubricants, auxiliary materials

Standards for safety notices in the text

General Information

Tightening specifications for screws, nuts and bolts

Engine side and cylinder designations

Product description

Engine overview

Sensors and actuators – Overview

Engine wiring harness – Overview

Technical Data

Engine data 8V4000M24S, Marine EPA Tier 3, IMO Tier II

Engine data 8V4000M54, Marine EPA Tier 3, IMO Tier II

Engine data 8V4000M54R, Marine EPA Tier 3, IMO Tier II

Firing order

Main engine dimensions

Operation

LOP controls

Putting the engine into operation after extended out-of-service periods (>3 months)

Putting the engine into operation after scheduled out-of-service-period

Starting the engine via the automation system

Operational checks

Tasks after extended out-of-service periods (>3 weeks)

Fuel treatment system control cabinet – Controls

Checks prior to start-up

Fuel treatment system – Initial start-up

Fuel treatment system – Switching on

Emergency engine shutdown via automation system

Engaging from LOP

Disengaging from LOP

Waterjet – Flushing from LOP (optional)

Engine shutdown via the automation system

After stopping the engine

Fuel treatment system – Shutdown

Plant – Cleaning

Maintenance

Maintenance task reference table [QL1]

Troubleshooting

Troubleshooting

Control cabinet of fuel treatment system – Troubleshooting

Engine governor ADEC (ECU 7) fault messages for Series 4000 engines, marine application

Engine Control Unit ADEC (ECU 7) – Fault codes

Task Description

SOLAS

Engine

Cylinder Liner

Valve Drive

Injection Pump / HP Pump

Injector

Fuel System

Fuel Filter

Exhaust Turbocharger

Charge-Air Cooling

Air Filter

Air Intake

Starting Equipment

Lube Oil System, Lube Oil Circuit

Oil Filtration / Cooling

Coolant Circuit, General, High-Temperature Circuit

Raw Water Pump with Connections

Battery-Charging Generator

Engine Mounting / Support

Auxiliary PTO

Fuel Supply System

Wiring (General) for Engine/Gearbox/Unit

Accessories for (Electronic) Engine Governor / Control System

Emergency Instrumentation (Local Operating Panel)

Appendix A

Abbreviations

MTU contact persons/service partners