[aussiem3]

Originally Posted by J-Suo

I just did my first spark plug change on my new-to-me E92 M3, and it seems the shop that worked on it last borked it pretty good. All coils had misaligned rubber sleeves that made them monstrously tough to pull out, and all the plug threads were coated top-to-bottom in a sticky black tar (presumably from ill-advised use of lots of anti-sieze compound).

At any rate, like many here I bought the sweet Division M coil puller tool, but the backs snapped right off the coils. So I rigged up a little tool of my own using a couple heavy-gauge guitar strings and a threaded rod. Not as quick or simple as throwing a fat loop of wire under the wire harness plug, but for the amount of force needed I'd wager this works a bit better as it pulls evenly/straight out, instead of from one side. Hopefully I'm the only one unlucky enough to ever need this, but if you drew the short straw like I did, this works perfectly.

Another innovation