New serpentine belt, new tensioner if your's is busted.

I think there are details somewhere around in other postings.

I'm assuming you have an M103 engine.

Peter

__________________
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!