Spark Plug: Application and ID

The content of this article reflects the changes identified in TSB SI B12 01 05 dated February 2010.

This technical service bulletin (12 01 05) was first published in May of 2005 (that is the meaning of the 05) and has been updated several times, since you are currently viewing an older vehicle if you wish to see the full text of this TSB, consider selecting a 2006 (or newer) E90 (3 Series) or E60 (5 Series) with the N52 engine.

SPARK PLUG APPLICATION CHART



5 Series

528e (E28) M20 All 1982 - 1987
Bosch WR9LS
0.028 - 0.032 in (0.7 - 0.8 mm)

528e (E28) M20 All 1988*
Bosch W8LCR
0.028 - 0.032 in (0.7 - 0.8 mm)

* With Motronic M1.1