That's really great bad, but so as everyone doesn't spend so much it should be known that MB list price for the coil ends which are always the problem is $11 a piece or $33 for all three. If you just like replacing resistors, the other three can be had for $13.35 a piece (or 40.05 total).
The wire never goes bad, but if it did I would make a new one from some packard 440 and two terminal ends MB # 000 159 14 38 at list $1.40 each and you have a complet ORIGINAL not bosch aftermarket set up for less money BUT as with real things no lifetime warrantee.
Oh, and BTW, those prices are list price; fastlane would of course do better! Personally, I just like to replace the three coil ends each time I change plugs.
Bosch Master, ASE Master, L1
33 years MB technician