Scania DI12

• 6 cyl
• Diesel

Save my engine

Troubleshooting

Starting problems

• Boat engine won't start after the winter
• Air in the fuel system – the diesel will not start
• Engine won't start
• Starter motor clicks or does not crank

Runs rough, stalls or loses power

• Boat engine dies at idle or when shifted into gear
• Boat engine hesitates or dies on acceleration
• The boat engine knocks or makes strange noises
• Boat engine stops after a while
• Boat engine does not reach full revs at full throttle

Smoke and exhaust

• The boat engine smokes blue – burning oil
• White smoke from the boat engine exhaust
• Diesel engine emits black smoke
• Engine smokes or loses power

Cooling and temperature

• Engine not cooling – weak or no cooling water
• Temperature alarm – engine overheating

Oil, water and fuel

• Water in the fuel or tank of the boat engine
• Water in the engine oil – the oil is grey or milky

Electrics, alarms and fault codes

• Battery not charging – charge warning light is on
• The alarm is sounding – what do the warning lights mean?
• Oil pressure alarm on the boat engine – low oil pressure
• Volvo Penta fault codes (EVC) – what do they mean?

Drive, gearbox and trim

• Drive knocks or vibrates
• Gear will not engage or jumps out

Manuals

• Official

  Operator's Manual DI12 EMS with S6/PDE Marine engine ↗ (external link)
  EN · PDF
• Official

  Operator's Manual DI12 (older edition) ↗ (external link)
  EN · PDF

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Related models

DI09

Inboard

5 cyl · 9.3 l · 220–400 hp · Diesel

→

DI13 PDE

Inboard

6 cyl · 12.7 l · 380–750 hp · Diesel

→

DI13 XPI

Inboard

6 cyl · 12.7 l · 800 hp · Diesel

→

DI16 PDE

Inboard

8 cyl · 16.4 l · 800–850 hp · Diesel

→

Service guides

Replacing the impeller →Winterize a boat engine →

Frequently asked questions about DI12

Where can I find the owner's manual for DI12?

Links to owner's manuals and workshop manuals are available under Manuals.

How many cylinders does DI12 have?

Scania DI12 has 6 cylinders.

What fuel does the DI12 use?

Scania DI12 runs on diesel.

Sources

• Scania TIL: Operator's Manual DI12 EMS S6/PDE Marine (PDF) ↗ (external link)
• Wikipedia: Scania ↗ (external link)
• Scania: Installation manual, Technical data, Marine engines DI09/DI13/DI16 (PDF, 2018) ↗ (external link)