Simple solutions
As far as I can see, 3 of the plug leads are original. I am certain that, aside from plugs, NONE of the ignition components have been changed in the 160 K Kms I've owned the car.
Anyway, I looked back in my records and found that the plugs haven't been changed since 2001 at about 200 K Kms!
As my wife was going to the big city, she visited MB and picked up six new Mercedes plugs (Bosch F7 DPP 332 R1 586 - whatever that means). I had told her that they would be about 2 or 3 Euro each. She returned 86 Euro lighter!!!!
The upside, however, is that it now starts like a good 'un, idles like new and seems to have been generally rejuvinated.
So, simple solution, 86 Euro and away we go!!
RayH



