A4-avant

DIY number 3 coil replacement.

Antione Crawford

Simple fix.

1. Disconnect the front side of the air box, and large air intake tube located on the passengers side of the engine bay for room to remove ignition coil #3 (if you're looking at the engine bay from the front bumper, it will be the furthest one up right under the air intake hose)

2. You should see two little T20 Hex Bit screws on the red wiring harness for the ignition coils that mount it on the valve cover, remove those.

3. Carefully un-clip all three ignition coil connector heads and slide them down and to the side. Carefully! Because too much force too fast can break them.

4. Using your fingers under the male connector part of the coil where it connects to the harness, while using a secure grip around the sides of it with your other hand, carefully but steadily pull out the coil straight out without rubbing it on the ignition coil well which might cause unwanted grooves or shavings in the well.

5. Inspect that the rubber boot is not broken off onto the spark plug below.

6. If all is well, replace coil in reverse steps above.

If you have any questions just let me know, I've been working on this model for years now and have done just about everything on it.

Antione Crawford

Oh and one more IMPORTANT thing. Make sure you apply some dielectric grease to the inside of the rubber boot on the ignition coil where it connects over the spark plug, before installation of the new coil. You can find a multitude of brands of this grease on Amazon or at your auto parts store.