Well I measured the gap of the plugs and they all were larger than 1.27 mm. My gapping tool doesn't measure down to as low as .8, but obviously 1.27 is greater than that. I have a set of feeler gauges but the largest they go is .655 mm.

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member