Check out the distributor/rotor changing description in the DIY section -- the only real difference is that you only have one, and there are six wires instead of four.

It's very easy to reach, just pull the plastic cover off.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!