Anyone knows which plugs i need for my 230, NG3306 or NG6341?
http://catalog.allperformanceparts.com/buy.php?make_text=mercedes&model_text=230_series&ml=slk-230-001&year=1998&part_name=spark_plug&brand_name=ngk&make_code=MB
I have 16 of these - brand new boxed. Fit all M113 engines I believe - 43, 500, 55. I paid £6.99 per plug from here
Part number is BKR5EIX, no doubt they will fit other cars. £80 + delivery if needed.
Edit:
No longer available.