General data
| General data | 
|  |  | B206i/B204L | B234i | 
| Engine type |  | Transverse four-cylinder, four-stroke engine with four valves per cylinder, twin overhead camshafts and two balance shafts (the B206i engine has no balance shafts). | |
| Cylinder bore | mm | 90 | |
| Stroke | mm | 78 | 90 | 
| Swept volume | cm
       
        3 | 1985 | 2290 | 
| Firing order |  | 1-3-4-2 | |
| Weight | kg (lb) | 140 (305) / 156 (340) | 150 (330) | 

 
     
		