OceanSphereENGINES
Scania Marine

DI16 075M

Auxiliary Engine (Generator Set) · Auxiliary Engines

Technical data from manufacturer or class sources · not yet verified by a person​‍‌​‍​‌‍​​‍‌‍‍​‍⁠‍​‌
553 kWPower
1,600 kgWeight
24Voltage

Marine vessels requiring robust and reliable power solutions often opt for engines that meet stringent emissions standards while delivering efficient performance over extended periods. The Scania DI16 075M is designed for continuous operation and offers prime power ratings from 480 to 553 kW, suitable for various maritime applications. This engine complies with IMO Tier II and EU Stage IIIA regulations, ensuring low exhaust emissions and good fuel economy. With a displacement of 16.4 liters and a bore and stroke of 130 x 154 mm, the DI16 075M features a robust cylinder block with wet cylinder liners that facilitate easy maintenance. The engine’s fuel efficiency is highlighted by its electronically controlled unit injectors and twin turbochargers, delivering a high torque of 3056 Nm at 1500 rpm and 2934 Nm at 1800 rpm. The standard equipment includes a Scania Engine Management System (EMS) and a range of accessories that enhance its versatility and reliability.

Specifications

Technical data.from datasheet

Every value below comes from the manufacturer datasheet or class-society record on file for this model.

ConfigurationV8, 4-stroke
Displacement16.4 litres🔖
Bore x Stroke130 x 154 mm
Power Range480-553 kW (1500-1800 rpm)
Compression Ratio16.7:1
Power (kW)553 kW🔖
Power480-553 kW🔖
Bore x stroke130 x 154 mm🔖
Weight (kg)1600 kg🔖
Voltage24 V DC🔖
Engine typeDI16 075M🔖
Kw430🔖
Engine power430/468 kW🔖
Air consumption (kg/min), engine speed (rpm)32/42🔖
Radiated heat (kW)21 rpm🔖
Maximum intake air temperature (°C), engine speed (rpm)54 60🔖
📄
Download datasheet (PDF) (1305 KB)
Manufacturer documentation

Images from manufacturer documentation.

Photos, drawings and page previews from this model’s datasheet or catalog.

“The marine engines from Scania are based on a robust design with a strength optimized cylinder block containing wet cylinder liners that can easily be exchanged. Individual cylinder heads with 4…”

Scania Marine DI16 075M – Drawing (Scania Marine datasheet S. 1)
Drawing · Scania Marine datasheet · S. 1
Scania Marine DI16 075M – Drawing (Scania Marine datasheet S. 2)
Drawing · Scania Marine datasheet · S. 2
Source: Scania Marine DI16 075M datasheet, p. 1
Inspection

Inspector Detail

Common issues

  • Turbocharger fouling or bearing wear reducing boost pressure and increasing exhaust temperature
  • Fuel injector wear causing rough running, white/black smoke, or increased fuel consumption
  • Charge air cooler fouling on the seawater or air side, reducing intercooling efficiency
  • Coolant leaks at hose connections and the heat exchanger, especially after extended running hours
  • Valve clearance drifting out of tolerance, affecting performance and causing valve seat wear
  • Belt-driven auxiliary (alternator, seawater pump) wear or slippage
  • Starter motor or engine control unit faults on gensets that start/stop frequently

Inspection checklist

  • Check exhaust temperature deviation between cylinder banks; a significant spread points to injector, valve, or turbocharger trouble
  • Inspect turbocharger for shaft play, unusual noise, and boost pressure against the reference curve
  • Check coolant and lube oil levels, condition, and for signs of cross-contamination
  • Verify valve clearances against Scania's specification at the due interval
  • Inspect charge air cooler and radiator/heat exchanger for fouling and leaks
  • Check drive belts for tension, cracking, and glazing
  • Review oil sample/analysis trend if the vessel runs a condition monitoring programme
  • Confirm genset load-sharing and governor response during a test run

Service intervals

Lube oil and filter changetypically every 500 hours or per Scania's marine service schedule - confirm against the engine's own manual and oil specification
Fuel filter renewaltypically every 500-1000 hours
Valve clearance check/adjustmenttypically every 1000-1500 hours
Coolant changeper Scania's coolant service life, typically every 1-2 years depending on coolant type
Major overhaul (top-end)engine-hours dependent, commonly in the 12,000-20,000 hour range for medium-duty marine diesels of this class - confirm against Scania's schedule for the DI16 marine rating

Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.

Critical spares

  • Fuel injector set matched to this engine variant
  • Lube oil and fuel filter elements
  • Charge air cooler / heat exchanger gasket set
  • Turbocharger repair kit or spare unit
  • Drive belt set
  • Coolant thermostat

Safety

  • Hot exhaust manifold and turbocharger surfaces present a burn hazard during and after running
  • Pressurised cooling system - allow the engine to cool and release pressure before opening the coolant system
  • Isolate the starter battery/circuit before working on the electrical or starting system
  • Genset rooms can reach high noise levels - hearing protection required during running checks

Class survey

As an auxiliary/genset engine, this unit typically falls under the vessel's Continuous Survey Machinery or periodic survey scope for essential generating sets. Surveyors will expect PMS records for oil changes, filter renewals, and any major component renewals, plus evidence the genset can carry its rated load.

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