From what follows you can tell I'm not a regular visitor to this forum. I haven't changed spark plugs in any car in about 15 years. This morning I go to change the plugs in my 1992 325is, only to be befuddled by not being able to find them. I took both "covers" off the top of the engine and I didn't see anything that looked like spark plugs or spark plug wires leading thereto. Q's: Where are the plugs? Aside from the spark plug socket, do I need any special tools? Any advice, instructions, links (especially to photos) would be appreciated.