Engine Saab B284L

2.8-liter V6 Saab B284L engine was produced at the company’s factories from 2005 to 2008 and was installed in the second generation of the 9-3 model until it was replaced by a more powerful version of the B284R. This turbo engine in its design is almost completely similar to the Opel Z28NET engine.

V6 GM-engine: B258i, B284L, B308E, B308i.


Production years 2005-2008
Displacement, cc 2792
Fuel system distributed injection
Power output, hp 250 – 255
Torque output, Nm 350
Cylinder block aluminum V6
Block head aluminum 24v
Cylinder bore, mm 89
Piston stroke, mm 74.8
Compression ratio 9.5
Features intercooler
Hydraulic lifters yes
Timing drive chain
Phase regulator at the intake
Turbocharging MHI TD04HL
Recommended engine oil 5W-30
Engine oil capacity, liter 7.0
Fuel type petrol
Euro standards EURO 4
Fuel consumption, L/100 km (for Saab 9-3 2006)
— city
— highway
— combined
Engine lifespan, km ~300 000
Weight, kg 215

The engine was installed on:

  • Saab 9-3 II (YS3F) in 2005 – 2008.

Disadvantages of the Saab B284L engine

  • The most famous problem of this engine is the low resource of timing chains;
  • The electrician delivers a lot of trouble, most often the ECU and the oil pressure sensor fail;
  • Overheating often occurs with breakdown of gaskets due to a jammed thermostat;
  • The turbine runs normally, often only the bypass damper or bypass fails;
  • The weak points of the power unit include ignition coils, as well as a gasoline pump.

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