What is your question?
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What is your question?
I want to change spark plugs and have been told ther were two differant engines. One is single and the other is a double ohc. How do I tell the difference as my owner manual is for a 318I?
Look at the picture in this link: http://images.forum-auto.com/mesimages/493582/m50b25vanos.jpg If your engine has that bump-out that in the circle, you have a DOHC.
take on out and take it with you and they will tell you at the store, or it should be in the door on a sticker in the driver side.