Engine Saab B258i

The Saab B258i 2.5-liter V6 petrol engine was produced in England from 1993 to 1998 and installed in the 900 model in combination with a manual and automatic transmission. This power unit is essentially one of the varieties of the famous Opel X25XE engine.

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


Production years 1993-1998
Displacement, cc 2498
Fuel system distributed injection
Power output, hp 170
Torque output, Nm 227
Cylinder block cast iron V6
Block head aluminum 24v
Cylinder bore, mm 81.6
Piston stroke, mm 79.6
Compression ratio 10.8
Features Bosch Motronic 2.8.1
Hydraulic lifters yes
Timing drive belt
Phase regulator no
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 4.5
Fuel type petrol
Euro standards EURO 2
Fuel consumption, L/100 km (for Saab 900 1996)
— city
— highway
— combined
Engine lifespan, km ~280 000

The engine was installed on:

  • Saab 900 II (NG) in 1993 – 1998.

Disadvantages of the Saab B258i engine

  • The biggest problem here is grease leaks, especially from under the valve covers.
  • Very often, oil gets into the candle wells and there are problems starting the engine.
  • Also, through a leaky heat exchanger, oil can seep into antifreeze.
  • There are a lot of complaints on the network about a broken timing belt and almost always with a bend in the valves.
  • The oil receiver is too low and any sump jam will block it.

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