How do you get to the spark plugs in 2003 BMW 325i?

The 2003 BMW 325i uses a coil-over-plug system, so the spark plugs are connected directly to the coils, deep in the cylinder head.

To get to the spark plugs: # Remove sound reduction or ignition coil covers as needed # Open control box cover # Disconnect ignition coil electrical connector by lifting up plug lock # Remove ignition coil by pulling straight up # Use the necessary tools to remove the spark plugs There are six plugs, and the factory plugs that come with the car are most likely the NGK BKR6EQUP (laser platinum, 4-ground electrode) ... or if it's not the platinum version, the BKR6EKUB (a dual-ground electrode, semi-surface discharge type).