How to Replace Ignition Coils 2001-02 BMW 325Xi
Created on: 2019-06-08
Watch this video to learn how you can replace the ignition coils on your 01-05 BMW 325Xi. 1A Auto will show you how its done!
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step 1 :Accessing the Ignition Coils
- Disconnect the negative battery cable using a 10 mm wrench (The battery is located in the trunk)
- Unlock the three twist locks to release the cabin air filter cover at the rear of the engine compartment
- Remove the cabin air filter
- Pry open the plastic wiring conduit along the cabin air filter box
- Pull the wires and hose from the conduit
- Remove the four T30 screws mounting the cabin air filter box
- Remove the cabin air filter box
- Pry off the two bolt covers from the center engine cover
- Remove the two 10 mm bolts securing the center engine cover
- Remove the center engine cover
- Remove the oil fill cap
- Pry off the two bolt covers from the passenger side engine cover
- Remove the two bolts securing the passenger side engine cover
- Remove the passenger side engine cover
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step 2 :Removing the Ignition Coils
- Remove the two 10 mm bolts securing the ignition coil
- Disconnect the ignition coil electrical connector
- Remove the ignition coil
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step 3 :Installing the Ignition Coils
- Replace the ignition coil
- Reconnect the ignition coil electrical connector
- Replace the two 10 mm bolts securing the ignition coil
- Repeat steps 2 and 3 for the remaining ignition coils
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step 4 :Putting the Engine Compartment Back Together
- Replace the passenger side engine cover
- Replace the oil fill cap
- Replace the 10 mm bolts securing the passenger side engine cover
- Replace the bolt covers
- Replace the center engine cover
- Replace the two 10 mm bolts securing the center engine cover
- Replace the two bolt covers
- Replace the cabin air filter box
- Replace the four T30 screws securing the cabin air filter box
- Replace the hose and wires into the conduit
- Replace the conduit cover
- Replace the cabin air filter
- Replace the cabin air filter cover, and secure it with the three twist locks
- Reconnect the negative battery cable (The battery is located in the trunk)
Tools needed
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Socket Extensions
Flat Blade Screwdriver
10mm Wrench
T30 Socket
10mm Socket
Ratchet
Pocket Screwdriver
What's up, guys? I'm Andy from 1A Auto. In this video, I'm going to show you how to replace the ignition coils on this 2001 BMW 325xi. If you need this part, or other parts for your vehicle, click the link in the description and head over to 1Aauto.com.
The battery is in the trunk. I'm going to disconnect the negative terminal. I'm just going to use a 10-mm wrench and loosen up this nut right here. Then grab the connector and disconnect that, and set it aside.
All right. We're going to take this cover off. We have this nice light that we can see a lot better under the hood. We sell this at 1Aauto.com. It hooks right onto the hood. Open this up, lift this cover. This should slide out just like that. Just slides forward. Now we can grab this cabin filter, slide it out. Take a straight-blade screwdriver, or pocket screwdriver, or even a pick, and we're going to take this cover right off here. Just get under there, snap this off. Just like that. Slide that out of the way. We can pull these wires down. Just like that. Just like that.
There's four screws right here, one, two, three, four. I'm going to use a T30 socket, extension and a ratchet to take these out. They should stay with the cover, so they're not going to fall out. With all those loose, I can grab this. Just slide it out. I might have to just loosen this by hand a little bit. And pull this off, set it aside.
So, there should be two covers over here and right here. You just take a pocket screwdriver and get underneath there and pop those off. Then there is a bolt in there and there. We're going to use a 10-mm socket, extension and a ratchet to take those bolts out. I'm just going to use a magnet to grab the bolt, and just grab this cover, pull it off.
We can grab the oil cap, fill cap. Take a pocket screwdriver right here and there's also a cover right here. Just take these covers off. I'm going to take a 10-mm socket, extension and a ratchet, and there's a nut here and also under that cover. Take those out. All right, I'll pull that nut out. We can grab this cover and slide it off.
So, this front coil has a ground strap on it, and also that back coil has a ground strap, so you want to keep that in mind before you take it apart. I'm going to take a 10-mm socket, extension and ratchet and take these two bolts out. Set that ground strap aside. You can slide this retainer up. There's like a lock on this. As you slide this up, you should be able to disconnect the connector and then wiggle the coil back and forth and pull it out.
Here's the old coil. Here's the new coil from 1Aauto.com. The shape is the same, the boot is the same length, the connector is the same, and it has the same lock on it. Get yours at 1Aauto.com and you can do it yourself.
Take the new coil, slide this on here. You could actually put some dielectric grease in there if you wanted to. It's a good idea. Then slide this into position. We'll connect the connector and lock it down. Then this one has the ground, same as the last one. Take the two bolts. For that forward one, put it through the ground strap. Take a 10-mm socket, extension and ratchet and we'll snug these down. Snug. Then we can do the same with the other ones.
Then we'll put this cover back on. Slide it back into position, put the cap back on. If you wanted to, you could have left the cap on once you take the cover off, so you don't drop anything in there. Put the nut back on. Put this nut back on. Get those started. I'll use a 10-mm socket, extension and ratchet and tighten these down. Snug those down. Not too tight. It is a plastic that you're holding down. On this cover, we have these two caps. Get those lines up, and press those in.
Now, we'll reinstall this cover. Slide it under the wires. There's a couple of clips underneath here that have to slide onto this rail. Let's see. There we go. All right. Make sure those clips are slide in position and take the bolts, get the bolts started. Take a 10-mm socket, extension and a ratchet and we'll tighten these down just snug. It is plastic, not too tight. There should be two caps that go over here. This vehicle doesn't have them. They're missing, so I'm not going to put those in, but make sure you reinstall those caps.
All right, and then we want to install this. Just get this lined up and get these screws started. I'm going to take a T-30 socket, extension and a ratchet and tighten these up. Now reinstall these wires in this cover right here. Just like that. Take this cover, line it up. That's good. Take the filter. We're going to slide it in with curve side towards the vehicle, so the bowed side more towards out of the vehicle. Just slide that in position like that. We'll take this cover. It's going to just slide in underneath this weather stripping. Just push it in. Get these lock tabs to line up and lock them down. They're spring loaded. The last one, and you're good to go.
Reconnect the battery. Put the negative terminal on. Take a 10-mm wrench and just tighten up this nut and just snug it up. Make sure it's tight, it doesn't wiggle loose, and you're good to go.
Thanks for watching. Visit 1Aauto.com for quality auto parts shipped to your door. The place for DIY auto repair, and if you enjoyed this video, please click the subscribe button.
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