Engine Saab B234i

The 2.3-liter naturally aspirated Saab B234i engine was produced by the concern from 1990 to 1999 and was installed on the company’s most popular models of its time, such as the 9000, 900 and 9-3. There were two versions of the motor: the so-called Long Block of 1990 and Short Block of 1993.

2.3-liter H-series engines: B234E, B234i, B234R, B235E, B235R.


Production years 1990-1999
Displacement, cc 2290
Fuel system distributed injection
Power output, hp 150
Torque output, Nm 210
Cylinder block cast iron R4
Block head aluminum 16v
Cylinder bore, mm 90
Piston stroke, mm 90
Compression ratio 10.0 – 10.5
Features Bosch Motronic
Hydraulic lifters yes
Timing drive chain
Phase regulator no
Turbocharging no
Recommended engine oil 5W-40
Engine oil capacity, liter 4.0
Fuel type petrol
Euro standards EURO 2/3
Fuel consumption, L/100 km (for Saab 9000 1995)
— city
— highway
— combined
Engine lifespan, km ~360 000

The engine was installed on:

  • Saab 900 II (NG) in 1993 – 1998;
  • Saab 9000 I in 1990 – 1995;
  • Saab 9-3 I (YS3D) in 1998 – 1999.

Disadvantages of the Saab B234i engine

  • All power units of this family are very reliable and especially atmospheric.
  • Most of the problems are caused by balance shafts and many simply remove them.
  • By 250,000 km, the timing chain in the engine often stretches and starts to rattle loudly.
  • A lot of trouble here is associated with leaks due to collapsed hoses and pipes.
  • Engine weaknesses also include the mass air flow sensor, oil pump and short-lived wiring.

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