Hi guys, I just finished uploading a video of my spark plug replacement process. While I filmed it on my E39, it's virtually the same process on the E53.

https://www.youtube.com/watch?v=G9pdVTRxcPU

I used OE plugs, PN: 12120037607

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E46 M3 | E30 318is | E53 X5 4.8is | E39 530i