The plug wires lay in the slot on top of the valve cover and are held in place by a set of plastic channel brackets that run the length of the valve cover, one below and one above the wires. The part numbers are: 103-159-04-40 (upper) and 103-159-05-40 (lower). The outer cap to the suppressor housing is part #103-158-06-85. All of these parts are inexpensive and available through the forum sponsors or MBz.

There's been a lot of discussion about non-availability of non-resistor plugs, but I haven't had any difficulty locating them over the years, and AFAIK they are available from NGK, Bosch, and Champion (and of course from MBz).

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1988 California version 260E (W124)
Anthracite Grey/Palomino
Owned since new and still going strong and smooth
MBCA member

Past Mercedes-Benz:
1986 190E Baby Benz
1967 230 Inherited from mom when she downsized
1959 220S Introduced me to the joys of keepin' 'em goin'

There are only 10 kinds of people in the world--those who understand binary and those who don't