How to Replace Spark Plugs 2007-09 BMW X3

I want to disconnect the battery. So, get to the battery in the back. Just use a 10-millimeter socket, remove the negative cable, loosen it up and just slide it off and out of the way. Make sure it doesn't arc out on there. Take these two trim clips out, just use a trim tool. Take the center part out first and take the push pin out. Do the same on that side. We're gonna take these two bolts out on this side and the two on the other side as well. On this side I'll just use a wrench and 13-millimeter, and the other side I can use a socket and a ratchet, and slide this bar out of the way. I'm going to take this cover off, twist this right here. This one over here as well, and one on that side, and just grab it, slide it up and just pull the cabin filter up. I'm just going to use a bungee cord just go around the wiper arm just to hold this up.

Let me just keep that out of the way. We're gonna take these four bolts out. We're gonna use a T-30 socket and just grab this piece. You should be able to slide it up and just slide this out, throw all those leaves out. Now you're going to use a 5-millimeter hex bit and take these four bolts out. There's two in the front, two in the back, and just slide this cover off just like that. To remove the coil, disconnect the connector. I'm just going to slide this tab up just like that and then the connector is gonna slide out. It's going to slide straight down. You can grab the coil, just rotate it a little bit back and forth. Try to slide it out as you pull and I'll just take a 5/8 spark plug socket and loosen up the spark plug. And slide the spark plug out. All right. Take the spark plug, put it in the socket. Make sure it doesn't fall out and slide it down the hole. Now I'm going to use a torque wrench and torque this to 20-foot-pounds. Now we can put the coils back in and reconnect them. Get the connector lined up and push down and lock. Do the same for the others. Now we can line these wires up. Put this through this container there. All right. Slide the wire through here, put the bolt through and we'll tighten that down and snug that up. That's good. Slide this thicker wire on top. And slide that right there. Put the nut on and snug this up. That's good. Put the cover back there and line the cover up right here and lock it in place.

All right. Take the cover, line the cover up. And take the bolts, get all the bolts started, and just snug these up. Not too tight. Take this panel, get this lined up. All right. Get that to line up. Get these bolts started and just snug these down. I'll take the bungee cord away, put the cabin filter back in. Slide that in position. It actually goes this way. That looks good. Put the cover on, tighten these down, turn the locks. And take this bar, align this up. Put these bolts in, two on this side two on the other side. And on this side I'll just use a ratchet wrench to tighten these down, snug them up and take these pushpins, line these up, and lock it down. There we go. Now we're gonna reconnect the negative battery cable and tighten up the nut. Just make sure you wiggle it, make sure it's tight. That's good.