Spark plugs
| Spark plugs | 
| Engine | Designation | 
| B204I | NGK BCP 5EV (Precious metal) | 
| B204L | NGK BCPR 7ES | 
| B234I | NGK BCP 6EV (Precious metal) | 
| Electrode gap | 
 
   
   Measure and adjust the spark plug at pos. 2 with tool 85 80 045. Measure the spark plug at pos. 1 with a wire gauge.
| Engine | Electrode gap, mm (in) | 
| B204I/B234l | 0.6 ± 0.1 (0.023 ± 0.004) | 
| B204L | 1.0 - 1.1 (0.039 - 0.043) | 
Tightening torque, spark plugs: 27 Nm (20 lbf ft).
Illustration: Tool 85 80 045 for measuring and adjusting electrode gap 0.6 mm

 
     
		