What to do if MTU 12V4000M73 Engine charge-air pressure is too low?
Low charge-air pressure may be caused by a clogged air filter, a clogged intercooler, or a defective exhaust turbocharger. Check the signal ring position of the service indicator and replace the air filter. Clean compressor wheel. Contact Service.
Why MTU 12V4000M73 does not rotate when started?
If the engine doesn't rotate when started, it could be due to a discharged or faulty battery, faulty battery cable connections, incorrect starter power supply design, faulty engine cabling, loose assemblies or connectors, loose plug connections on the Engine Control Unit or Engine Interface Module, a faulty fuse in the engine wiring harness, or a blocked engine. Charge or replace the battery, check cable connections, check starter power supply design, inspect visually, check plug connections, check the fuse and replace if necessary. Contact Service.
What to do if the MTU 12V4000M73 Engine rotates but does not fire?
If the engine rotates but doesn't fire, it could be due to a discharged or faulty battery, faulty engine cabling, a faulty Engine Control Unit, or an incorrect starter power supply. Charge or replace the battery. Check the engine cabling. Contact Service.
What to do if the MTU Engine charge-air temperature is too high?
If the charge-air temperature is too high, it could be due to engine overload, high air inlet temperature, incorrect engine coolant concentration, or a clogged intercooler. Reduce the load, check the fans and air supply/ventilation ducts, and check the engine coolant level and concentration.
What to do if my MTU 12V4000M73 Engine has blue exhaust gas?
Blue exhaust gas can be caused by too much engine oil, a contaminated oil separator, a defective exhaust turbocharger, a defective cylinder head, or defective piston rings or cylinder liner. Drain engine oil, replace the oil separator. Contact Service.
What to do if MTU 12V4000M73 has pump fault?
A pump fault occurs if the drive motor's overload protection is triggered due to excessive current, such as from a blockage or dry-running. The solution is to reset the motor protection relay.
Why MTU 12V4000M73 does not reach rated speed?
If the engine isn't reaching its rated speed, possible causes include engine overload, a clogged air filter, a clogged fuel prefilter, a clogged easy-change fuel filter, faulty engine cabling or a defective injector. Try reducing the load, checking the service indicator's signal ring position, replacing the air filter, draining water and contaminants from the fuel prefilter, and replacing the filter element.
What to do if my MTU 12V4000M73 has black exhaust gas?
Black exhaust gas from the engine can be caused by overload, a clogged air filter, or a defective injector. You should reduce the load and check the signal ring position of the service indicator. Also, replace the air filter.
General| Configuration | V12 |
|---|---|
| Bore | 170 mm |
| Stroke | 190 mm |
| Fuel Type | Diesel |
| Cooling System | Water-cooled |
| Engine Type | 4-stroke diesel |
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