Engine serial no.
| Engine serial no. | 
| Example
       
       : B235EEM00W12345 | ||
| Pos. 1 | Bxxxxxxxx xxxxxx | Engine type: B = Petrol engine | 
| Pos. 2-3 | x23xxxxxx xxxxxxx | Swept volume: 20 = 1.985 dm 23 = 2.290 dm | 
| Pos. 4 | xxx5xxxxx xxxxxxx | Cylinder head: 5 = 4 cylinders, in-line block with 2 balancer shafts, cylinder head with twin camshafts, 4 valves per cylinder Ecopower / Low-friction engine | 
| Pos. 5 | xxxxExxxx xxxxxxx | Version: E = Turbocharged engine with charge air cooler. Light-pressure turbo. Stage 2. R = Turbocharged engine with charge air cooler. High-pressure turbo. Stage 2. | 
| Pos. 6 | xxxxxExxx xxxxxxx | Car compliance
       
       
        : D = Saab 9-3 E = Saab 9-5. | 
| Pos. 7 | xxxxxxMxx xxxxxxx | Gearbox type
       
       
        : A = Automatic transmission M = Manual gearbox. | 
| Pos. 8-9 | xxxxxxx00 xxxxxxx | Variant
       
       
        : 00 = Basic engine 18 = Engine adapted for gearbox with automatic clutch. 19 = Engine with oil cooler. 20 = Engine with OBD II. | 
| Pos. 10 | xxxxxxxxx Wxxxxxx | Model year designation according to ISO 3779: W = 1998 | 
| Pos. 11-16 | xxxxxxxxx x12345 | Serial number: Serial number in model year. | 

 
     
		