MTU V 4000 M70 User Manual (English)

Questions and Answers:

E
Eric FoleyAug 16, 2025
What to do if the MTU Engine does not turn when the starter is actuated?
- D
  Donna SimonAug 16, 2025
  If the MTU Engine doesn't turn when the starter is activated, there are several potential causes: * A discharged or faulty battery could be the culprit. In this case, you should charge or replace the battery. * Faulty cable connections might be the issue. Make sure that all cable connections are properly secured. * It is also possible that the engine cabling or starter is faulty, or the running gear is blocked. In these cases, you should contact service.
E
Emily HurleyAug 19, 2025
What to do if MTU V 4000 M70 turns but does not fire?
- L
  Laura MooreAug 19, 2025
  If your MTU Engine turns but doesn't fire, the issue could stem from several causes: * Poor rotation by the starter due to a discharged or faulty battery. You can address this by charging or replacing the battery. * Air in the fuel system. Try venting the fuel system. * If these steps don't resolve the issue, the problem may be more complex, and it's best to contact service.
C
Caleb TranAug 22, 2025
Why is the MTU Engine speed not steady?
- B
  Belinda FergusonAug 22, 2025
  If the speed of your MTU Engine is not steady, it might be due to: * A faulty injector, which may need replacement. * Air in the fuel system. In this case, you should vent the fuel system. * If the problem persists, contact service.
T
Tanya HendricksAug 25, 2025
What to do if MTU V 4000 M70 fires unevenly?
- D
  Diana MillerAug 26, 2025
  If your MTU Engine fires unevenly, possible causes include: * A faulty injector, which may require replacement. * Air in the fuel system. Try venting the fuel system. * If these steps don't solve the problem, contact service.
S
Stephanie Martin MDAug 27, 2025
Why MTU V 4000 M70 Engine emits black exhaust gas?
- E
  Eugene WilliamsAug 28, 2025
  If your MTU Engine is emitting black exhaust gas, consider these possible causes: * A clogged air filter. Check the signal ring position of the contamination indicator. * A faulty injector, which may need to be replaced. * If the engine is overloaded, contact service.
R
Renee HardingAug 30, 2025
How to fix MTU Engine when it does not reach rated speed?
- B
  Brittney SmithAug 30, 2025
  If your MTU Engine does not reach its rated speed, check the following: * A clogged fuel prefilter. If clogged, replace it. * A clogged easy-change fuel filter. Replace the filter if it's clogged. * A clogged air filter. Check the signal ring position of the contamination indicator.
J
Jessica FoxSep 2, 2025
Why is the charge-air temperature too high in MTU V 4000 M70 Engine?
- J
  Jessica AndrewsSep 2, 2025
  If the charge-air temperature is too high in your MTU Engine, here are some things to check: * Incorrect engine coolant treatment. You can check this using the MTU test kit. * High air-intake temperature. Inspect the fans and air supply/ventilation ducts. * For contaminated components, contact service.
M
Molly DanielsSep 5, 2025
What causes blue exhaust gas from MTU Engine?
- S
  samanthacaseSep 5, 2025
  If your MTU Engine is emitting blue exhaust gas, the cause might be: * Too much oil in the engine. Drain some engine oil. * A clogged oil separator or oil preseparator of the crankcase breather. Replace it if clogged. * For other issues, contact service.
R
robert72Sep 7, 2025
What causes charge-air pressure too low in MTU V 4000 M70 Engine?
- M
  Melanie GonzalezSep 7, 2025
  If the charge-air pressure is too low in your MTU Engine, you should check: * A clogged air filter. Inspect the signal ring position of the contamination indicator. * For contaminated components, contact service.
J
Joseph RobinsonSep 10, 2025
Why MTU V 4000 M70 Engine emits white exhaust gas?
- Z
  Zachary ReedSep 12, 2025
  If your MTU Engine is emitting white exhaust gas, it could be due to: * The engine not being at operating temperature. Run the engine until it reaches its normal operating temperature. * Water in the fuel. Inspect the fuel system at the fuel prefilter. * If there is a leak, contact service.

MTU V 4000 M70 Specifications

General

Brand	MTU
Model	V 4000 M70
Category	Engine
Language	English

Summary

1 Safety

1.1 General conditions

General safety information regarding engine operation and handling.

1.2 Personnel and organizational requirements

Guidelines for qualified personnel and organizational measures for safe operation.

1.3 Transport

Safety regulations and procedures for transporting the engine and its components.

1.4 Safety regulations for startup and operation

Critical safety measures before, during, and after engine startup and operation.

1.5 Explosion hazard when removing inspection port cover on engine

Specific safety warning about explosion risks due to oil vapors when accessing the crankcase.

1.6 Safety regulations for maintenance and repair work

Comprehensive safety guidelines for all maintenance and repair activities on the engine.

1.7 Auxiliary materials, fire prevention and environmental protection

Safety considerations for auxiliary materials, fire prevention, and environmental protection.

1.8 Conventions for safety instructions in the text

Explains the meaning of DANGER, WARNING, CAUTION, and NOTE signal words used in the manual.

2 General Information

2.1 Engine side and cylinder designations

Explains how engine sides and cylinders are designated for clarity and identification.

2.2 Product description

Provides a detailed description of the engine's main components and systems.

2.3 Engine layout

Illustrates the physical arrangement of engine components and systems for understanding.

3 Technical Data

3.1 8V 4000 M70 engine data: IMO, separate heat exchanger, copper-based alloy intercooler

Detailed technical specifications for the 8V 4000 M70 engine with specific cooling configuration.

3.2 8V 4000 M70 engine data: engine-mounted heat exchanger, IMO

Technical specifications for the 8V 4000 M70 engine with an engine-mounted heat exchanger.

3.3 12V 4000 M70 engine data: IMO -20%, separate heat exchanger, copper-based alloy intercooler

Technical data for the 12V 4000 M70 engine with specific IMO and cooling configuration.

3.4 12V 4000 M70 engine data: IMO -20%, engine-mounted heat exchanger, copper-based alloy intercooler

Technical specifications for the 12V 4000 M70 engine with specific IMO, cooling, and engine-mounted configuration.

3.5 12V 4000 M70 engine data: engine-mounted heat exchanger, EPA stage 2

Technical data for the 12V 4000 M70 engine with engine-mounted heat exchanger and EPA stage 2 compliance.

3.6 12V 4000 M70 engine data: separate heat exchanger, EPA stage 2

Technical specifications for the 12V 4000 M70 engine with separate heat exchanger and EPA stage 2 compliance.

3.7 16V 4000 M70 engine data: IMO, separate heat exchanger, copper-based alloy intercooler

Technical data for the 16V 4000 M70 engine with IMO and separate heat exchanger configuration.

3.8 16V 4000 M70 engine data: IMO, engine-mounted heat exchanger, copper-based alloy intercooler

Technical specifications for the 16V 4000 M70 engine with IMO and engine-mounted heat exchanger.

3.9 16V 4000 M70 engine data: IMO -20%, separate heat exchanger, copper-based alloy intercooler

Technical data for the 16V 4000 M70 engine with IMO -20% and separate heat exchanger.

3.10 16V 4000 M70 engine data: IMO -20%, engine-mounted heat exchanger, copper-based alloy intercooler

Technical specifications for the 16V 4000 M70 engine with IMO -20% and engine-mounted heat exchanger.

3.11 16V 4000 M70 engine data: engine-mounted heat exchanger, EPA stage 2

Technical data for the 16V 4000 M70 engine with engine-mounted heat exchanger and EPA stage 2 compliance.

3.12 16V 4000 M70 engine data: separate heat exchanger, EPA stage 2

Technical specifications for the 16V 4000 M70 engine with separate heat exchanger and EPA stage 2 compliance.

3.13 12V 4000 M71 engine data: IMO, separate heat exchanger, copper-based alloy intercooler

Technical data for the 12V 4000 M71 engine with IMO and separate heat exchanger configuration.

3.14 12V 4000 M71 engine data: IMO, engine-mounted heat exchanger, copper-based alloy intercooler

Technical specifications for the 12V 4000 M71 engine with IMO and engine-mounted heat exchanger.

3.15 12V 4000 M71 engine data: IMO, separate heat exchanger, copper-based alloy intercooler, intake air temperature 45°

Technical data for the 12V 4000 M71 engine with specific cooling and intake air temperature.

3.16 16V 4000 M71 engine data: IMO, separate heat exchanger, copper-based alloy intercooler

Technical data for the 16V 4000 M71 engine with IMO and separate heat exchanger configuration.

3.17 16V 4000 M71 engine data: IMO, engine-mounted heat exchanger, copper-based alloy intercooler

Technical specifications for the 16V 4000 M71 engine with IMO and engine-mounted heat exchanger.

3.18 16V 4000 M71 engine data: IMO, separate heat exchanger, copper-based alloy intercooler, intake air temperature 45°

Technical data for the 16V 4000 M71 engine with specific cooling and intake air temperature.

3.19 Firing order

Lists the firing order for different engine configurations (8V, 12V, 16V, 20V).

3.20 Engine – Main dimensions

Provides key physical dimensions (length, width, height) for various engine models.

4 Operation

4.1 LOP – Controls

Details the function and layout of controls on the Local Operating Panel (LOP) for engine operation.

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

Step-by-step procedure for re-commissioning the engine after prolonged inactivity.

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

Procedure for bringing the engine back into operation after a planned shutdown.

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

Specific tasks required for engines that have been out of service for more than three weeks.

4.5 Checks prior to start-up

Essential checks to perform on the engine and systems before initial startup.

4.6 Fuel treatment system – Putting into operation

Procedures for the initial startup and commissioning of the fuel treatment system.

4.7 Starting the engine from LOP

Instructions for starting the engine using the Local Operating Panel (LOP).

4.8 Starting the engine at the BlueLine automation system (control stand)

Procedure for engine startup via the BlueLine automation system's control stand.

4.9 Fuel treatment system – Switching on

Steps to follow for activating and turning on the fuel treatment system.

4.10 Operational checks

Routine checks to perform on the engine during operation to ensure proper functioning.

4.11 Clutch – Engaging from LOP

Instructions for engaging the clutch using the Local Operating Panel (LOP) controls.

4.12 Clutch – Disengaging from LOP

Instructions for disengaging the clutch using the Local Operating Panel (LOP) controls.

4.13 Waterjet – Flushing from LOP (optional)

Optional procedure for flushing the waterjet system using LOP controls.

4.14 Stopping the engine from LOP

Steps for safely stopping the engine using the Local Operating Panel (LOP).

4.15 Stopping the engine at the BlueLine automation system (control stand)

Procedure for stopping the engine via the BlueLine automation system's control stand.

4.16 Emergency stop from LOP

Procedure for initiating an emergency engine stop using the Local Operating Panel (LOP).

4.17 Engine emergency stop at BlueLine automation system (control stand)

Procedure for initiating an emergency engine stop via the BlueLine automation system.

4.18 After stopping the engine

Actions to take after the engine has been stopped, including draining and preservation.

4.19 Fuel treatment system – Shutdown

Steps for properly shutting down and securing the fuel treatment system.

4.20 Plant – Cleaning

Guidelines and procedures for cleaning the engine plant, including safety precautions.

5 Maintenance

5.1 Maintenance task reference table [QL1]

A table referencing maintenance tasks with associated task numbers and page locations.

6 Troubleshooting

6.1 Troubleshooting

General guidance for diagnosing and resolving common engine operational issues.

6.2 LOP fault messages

Explains fault messages displayed on the Local Operating Panel (LOP) for troubleshooting.

7 Task Description

7.1 Engine – Barring manually

Procedure for manually rotating the engine crankshaft using a barring device.

7.1.2 Engine – Barring with starting system

Instructions on how to bar the engine using the automation system's starting functionality.

7.2 Cylinder Liner – Endoscopic examination

Method for inspecting cylinder liners using an endoscope for wear and damage.

7.2.2 Cylinder liner - Instructions and comments on endoscopic and visual examination

Provides terminology and criteria for interpreting findings from cylinder liner endoscopic and visual inspections.

7.3 Crankcase Breather – Oil separator check

Procedure for checking the oil separator in the crankcase breather system for damage or excessive oil discharge.

7.3.2 Crankcase breather – Oil separator replacement, diaphragm check and replacement

Steps for replacing the oil separator, checking the diaphragm, and performing related maintenance.

7.4 Valve Drive – Lubrication

Instructions for lubricating the valve gear components for proper engine operation.

7.4.2 Valve clearance – Check and adjustment

Procedure for checking and adjusting valve clearances to ensure correct engine timing.

7.4.3 Cylinder head cover – Removal and installation

Steps for safely removing and reinstalling the cylinder head covers.

7.5 Injection Pump / HP Pump – Relief bore check

Procedure for checking the relief bore on the high-pressure (HP) injection pump for leaks.

7.6 Injection Valve / Injector – Replacement

Instructions for replacing the fuel injectors in the engine.

7.6.2 Injector – Removal and installation

Detailed steps for removing and installing fuel injectors, including necessary tools and precautions.

7.7 Fuel System – Venting and filling

Procedures for venting and filling the low-pressure (LP) fuel system to ensure proper fuel delivery.

7.8 Fuel Filter – Replacement

Steps for replacing the fuel filter element to maintain fuel system efficiency.

7.8.2 Fuel prefilter – Draining

Procedure for draining water and contaminants from the fuel prefilter.

7.8.3 Fuel prefilter – Flushing

Steps for flushing the fuel prefilter to remove blockages and contaminants.

7.8.4 Fuel prefilter – Differential pressure gauge check and adjustment

How to check and adjust the differential pressure gauge on the fuel prefilter.

7.8.5 Fuel prefilter – Filter element replacement

Procedure for replacing the filter element in the fuel prefilter.

7.9 Exhaust Turbocharger – Turbine housing check

Steps for inspecting the turbine housing of the exhaust turbocharger for cracks or damage.

7.9.2 Compressor wheel – Cleaning

Procedure for cleaning the compressor wheel of the exhaust turbocharger.

7.10 Charge-Air Cooling – Intercooler – Checking condensate drain line for coolant discharge and obstruction

How to check the intercooler's condensate drain line for blockages and coolant leaks.

7.11 Air Filter – Replacement

Instructions for removing the old air filter and installing a new one.

7.11.2 Air filter – Removal and installation

Detailed steps for removing and reinstalling the air filter assembly.

7.12 Starting Equipment – Starter – Condition check

Procedure for checking the condition of the engine starter motor.

7.12.2 Air starter – Manual operation

Instructions for operating the air starter manually for engine startup.

7.13 Air Intake – Contamination indicator – Signal ring position check

How to check the contamination indicator's signal ring position for air filter status.

7.13.2 Air flap – Check for ease of movement

Procedure for checking the air flap's movement to ensure it operates freely.

7.14 Lube Oil System, Lube Oil Circuit – Engine oil level – Check

Steps for checking the engine oil level before and after operation.

7.14.2 Engine oil – Change

Procedures for changing the engine oil, including draining and refilling.

7.14.3 Engine oil – Sample extraction and analysis

Method for extracting and analyzing engine oil samples to assess condition.

7.15 Oil Filtration / Cooling – Engine oil filter – Replacement

Instructions for replacing the engine oil filter with the engine stopped or running.

7.15.2 Centrifugal oil filter – Cleaning and filter sleeve replacement

Procedure for cleaning the centrifugal oil filter and replacing its filter sleeve.

7.16 Coolant Circuit, General, High-Temperature Circuit – Venting points

Identifies the locations for venting air from the coolant circuit.

7.16.2 Coolant level - Check

Steps for checking the coolant level at the filler neck, remote cooler, and via sensor.

7.16.3 Engine coolant – Change

Procedure for changing the engine coolant, including draining and refilling.

7.16.4 Engine coolant – Draining

Steps for draining the engine coolant from various points in the system.

7.16.5 Engine coolant – Filling

Procedure for filling the engine coolant system, with precautions for cold coolant.

7.16.6 Engine coolant pump – Relief bore check

Procedure for checking the relief bore on the engine coolant pump for discharge.

7.16.7 Coolant – Sample extraction and analysis

Method for extracting and analyzing coolant samples to check concentration and condition.

7.17 Raw Water Pump with Connections – Raw water pump – Relief bore check

Procedure for checking the relief bore on the raw water pump for oil and water discharge.

7.18 Battery-Charging Generator – Battery-charging generator drive – Coupling condition check

Steps for checking the condition of the battery-charging generator drive coupling.

7.19 Engine Mounting / Support – Engine mounts – Checking securing screws for firm seating

Procedure for checking and tightening securing screws on engine mounts for firm seating.

7.19.2 Engine mounts – Resilient element check

How to check the resilient elements of engine mounts for cracks or deformation.

7.20 Drive Systems, Driving End and Free End (Coupling) – Coupling – Condition check

Procedure for inspecting the condition of the drive system coupling.

7.21 Auxiliary PTO – Bilge pump – Relief bore check

Procedure for checking the relief bore on the bilge pump for oil and water discharge.

7.22 Fuel Supply System – Water drain valve – Check

Steps for checking the water drain valve in the fuel supply system for proper function.

7.22.2 Differential pressure gauge – Check

Procedure for checking the differential pressure gauge on the fuel treatment system.

7.22.3 Water level probe (3-in-1 rod electrode) – Check

Steps for checking the function of the 3-in-1 rod electrode water level probe.

7.22.4 Pump capacity – Check

Procedure for checking the pump's capacity and calculating wear limits.

7.22.5 Coalescer filter element – Replacement

Steps for replacing the coalescer filter element in the fuel treatment system.

7.23 Wiring (General) for Engine/Gearbox/Unit – Engine wiring – Check

Procedure for checking the engine wiring, connections, and cable integrity.

7.24 Accessories for (Electronic) Engine Governor / Control System – Engine control unit and connectors – Cleaning

Instructions for cleaning the engine control unit and its connectors.

7.24.2 Engine monitoring unit and connectors – Cleaning

Procedures for cleaning the engine monitoring unit and its connectors.

7.24.3 Start interlock limit switch – Check

Steps for checking the start interlock limit switch to ensure proper engine start prevention.

7.24.4 Checking engine control unit plug connections

Procedure for verifying that all plug-in connections on the engine control unit are securely seated.

7.24.5 Engine monitoring unit, plug connections – Check

Procedure for verifying that all plug connections on the engine monitoring unit are securely seated.

7.24.6 Engine control unit – Removal and installation

Steps for removing and installing the engine control unit from the engine.

7.24.7 LOP – Visual inspection

Guide for visually inspecting the Local Operating Panel (LOP) housing and internal assemblies for secure seating.

8 Appendix A

Abbreviations

A list of abbreviations used in the manual with their meanings and explanations.

9 Appendix B

9.1 Spare Parts

Lists spare parts with part numbers and their usage in various maintenance tasks.

9.2 Special Tools

Lists special tools required for maintenance and repair tasks, including part numbers.

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