The 900 model was equipped with the Saab B258i 2.5-liter V6 petrol engine, which was manufactured in England between 1993 and 1998, along with both a manual and automatic transmission. This power unit is basically a version of the well-known Opel X25XE engine.
B258i, B284L, B308E, and B308i are the V6 GM engines.
Specifications
| 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 |
13.2 7.4 9.1 |
| Engine lifespan, km | ~280 000 |
The engine was installed on:
- Saab 900 II (NG) in 1993 – 1998.
Disadvantages of the Saab B258i engine
Grease leaks are the main issue here, particularly from beneath the valve covers.
Oil frequently gets into the candle wells, making it difficult to start the engine.
Additionally, oil may seep into antifreeze through a leaky heat exchanger.
A broken timing belt is frequently reported on the network, and it is nearly always accompanied by a bend in the valves.
Any sump jam will clog the oil receiver because it is too low.