Brief Summary
This video provides a step-by-step guide on replacing spark plugs in a 2009-2016 Audi A4 with a 2.0L turbo TFSI engine. The process includes removing the engine cover, disconnecting the wire loom and coils, extracting the old spark plugs, and installing new NGK spark plugs. Key points include using the correct tools, ensuring proper torque, and checking for oil leaks in the cylinder tubes.
- Removing and reinstalling the engine cover and wire loom.
- Safely disconnecting the coils and extracting the spark plugs.
- Installing and torquing new NGK spark plugs to the specified value.
To begin, remove the top engine cover by lifting it at the corners and setting it aside. Next, disconnect the wire loom attached to the coils by removing the T30 Torx bolt located in the center. The presenter uses a Milwaukee M12 ratchet to efficiently remove this fastener.
Unplug the coils by pushing the connector in towards the coil, squeezing the tab, and pulling the connector off. Start at cylinder number one and work towards cylinder number four, leaving the injectors plugged in. Slide the harness back to access the coils.
Use a pry bar or flat blade screwdriver to gently pry up the coils, being careful not to damage anything. Find a good pivot point and lightly pry up. Once slightly raised, the coils can be removed by hand. As you lift the coils, continue to pull the harness back to free them completely.
After removing the coils, inspect the cylinder tubes for oil leaks from the valve cover. If oil is present, the valve cover seals and gaskets may need replacement. If the tubes are clean, proceed to remove the spark plugs.
Use a 5/8 socket with a 10-inch extension and a standard ratchet to break the spark plugs free by hand. Then, switch to a Milwaukee M12 ratchet to slowly extract the spark plugs, avoiding damage to the threads. The presenter recommends this ratchet as a time-saving tool.
Install new NGK spark plugs, which come pre-gapped from the factory. Check the gap and return the plugs if it's significantly off, as these plugs are not designed to be manually gapped. Carefully feed the new spark plugs into the tube using the 5/8 socket, start the threads by hand, and then use the Milwaukee M12 ratchet to slowly spin them in until they bottom out.
Set a torque wrench to 22 ft-lbs and torque the spark plugs, starting at cylinder number one and working towards cylinder number four. Apply even pressure and slowly rotate the wrench until it clicks, avoiding jerking motions to ensure accurate torque.
Drop the coils back into the cylinder head and align the connectors. Start with coil number four and work towards the front for easier installation. Push the connectors together until they click, ensuring they are fully seated. Double-check for any gaps in the connectors and adjust as needed.
Reinstall the T30 Torx bolt to secure the wire loom. Finally, reinstall the top engine cover by lining it up and pushing it down until it locks into place. This completes the spark plug replacement on the Audi A4.
Summarize any YouTube video in seconds
Get summaries like this one for any video, in your language, with the free Summ app.
Transcript
Full transcript of “2009-2016 Audi A4 2.0 TSfI How To Replace Spark Plugs”. Click a timestamp to open the video at that moment. Need another video? Use the YouTube transcript generator.
0:00 2009 through 2016 Audi A4 with a 2 L turbo tsfi engine spark plug replacement I'm Brian Esser from how 2 Automotive I'm going to walk you through the steps of replacing the spark plugs to get started we're going to remove the top engine cover here so you're just going to grab it in the corners and lift up and then pull it out and set aside after we get the top engine cover off our next step is going to be to get this wire loom off right here that's uh mounted to all the coils we need to remove the T30 Torx bolt right here in the center so I've recently invested in the Milwaukee M12 series ratchets these uh these work great for removing fasteners like this so after getting the the torque screw removed the next step is going to
0:46 be is to unplug the coils and the way you do that is you push the connector in towards the coil and then squeeze a little tab straight back and then pull the uh the connector off so you're going to push in and pull the connector push in and pull the connector so as you can see I started at cylinder number one and I'm working my way back towards cylinder number four I'm going to leave the the injectors all plugged in just going to unplug the coils and Slide the uh the harness back a little bit and then once we get the harness slid back a little bit on all four coils like this the next step is we're going to use a little pry bar or a flat blade screwdriver and find a good spot to Pride That's Not Fragile like you're not going to break anything so I'm using the little pivot Points uh here probably going to switch over to a
1:33 bigger pry bar to get to these uh these coils back here so what so with a bigger pry bar I find a good pivot point and then pry up on it just lightly pry up once you get it popped up the they'll come out the rest of the way by hand so just finding the A spot to pry is the key once you have all four coils PRI up a little bit then you can start lifting them up higher and pushing the harness back and as the high the higher you get the coil up the harness will will will free up so what I'm doing is I'm pulling the coils up and pulling the harness back pull the coils up and pull the harness back and eventually you'll get them all to come off and clear so once you get them all cleared you can go ahead and pull the coils out
2:19 and set them aside for now so once you get all the coils out what I like to do is take a look down the cylinder uh tubes here and make sure that the Val cover is not leaking oil down into the tubes and they're not full of oil if they are full of oil then you're going to have to remove the valve cover and replace the seals and gaskets but if yours are in good shape like mine are we can go ahead proceed by removing the spark plug so you're going to need a standard 5/8 socket and about a 10in extension here or so and then I I use a standard uh ratchet like this and uh what I do is I break all these um spark plugs free by hand with the ratchet and then once I get them broken free I use I switch over to a my Milwaukee M12 ratchet here and I I light I use the
3:05 trigger lightly and slowly extract the uh spark plugs from the tube I don't rip the trigger on it and pull CU you I don't want to risk pulling threads having this ratchet has been a tremendous timesaver for me if you guys uh haven't seen these I recommend you check them out I'll leave a link for the ratchet in the description of the video along with the uh spark plugs that we're using in this video so I'm going to be installing NGK spark plugs in this vehicle these come preg Gap from the factory if you see that the Gap is way off I would recommend that you return the spark plugs these spark plugs are preset and they're not meant to be gapped this tip is very fragile so going back in I what I do is just reinstall it back into my 5/8 socket here slowly feed it into the tube and slowly start the
3:52 threads by hand and to speed it up I'm going to use my Milwaukee M12 here and I'm just going to lightly pull the trigger and spin the spark plugs in very very slowly until they bottom out and you'll feel it bottom out at the bottom then after that we will torque them by hand so I'm going to do all four of the spark plugs and then I'm going to set my torque wrench up to 22 foot- PBS and I'm going to torque the spark plug so I'm going to start at cylinder number one and work my way all the way down to cylinder number four uh installing the plugs and torquing them with my uh torque wrench to 22 ft-lbs so when I'm torquing these Spark plugs I put even pressure so I'll run it in until it's till it uh you can feel it coming up towards the torque and then as
4:37 it gets close to the the torque wrange I slowly uh rotate it till it clicks my torque wrench and but I do it slowly if you jerk the torque wrench you'll get an inaccurate torque now you can take all four of your coils and drop them back into the cylinder hood and then uh what I do is lift the coils up and the uh and the harness up at the same time and I'll start lining up the connectors with the coils and you kind of have to move them up and down and and kind of fidget with them to get them to all the line and kind of pull it back a little bit it's kind after doing this a few seconds here I realized it would be easier to start with the coil number four on the back and then work your way towards the front once you get them all kind of on there like this then what you can do is you just start pushing the connectors
5:23 together so you squeeze them together and you want to hear a click so when you squeeze them together you want to make sure that they click once you got them all in and you just push them all down with your hand like this you'll feel the coil bottom out and fully seed into the cylinder head and then after that I just double check again going back over my uh connectors if you look at the connectors you can see if there's a gap or not if this one has a little bit of a gap so I'm going to pull it in a little tighter and um and make sure you hear that click and then once I'm satisfied that all of them are plugged in right I'll go ahead and put the T30 Torx bolt in and tighten it back up after that we can go ahead and reinstall our top engine cover so you just line it back up like this and push it down until it locks into place and that'll complete the job of replacing the spark plugs on a 2009
6:10 through 2016 Audi A4 I will link up all the parts and tools that I use in this video in the description I'm Brian es from howto Automotive I'd like to thank you guys for watching my videos encourage you to subscribe invite you to head over to the howto automotive.com website for more valuable videos like this and I'd like to thank you again for watching
