Ok, well I got a new coil today and installed it and it was no go. Well when I was playing around under the hood I pushed on the belt and boy was it loose. Also considering I hear alot about the belt tensioners on MB's I decided this was my problem. Anyhow, now my question is, if the alternator isnt providing proper juice (due to the belt slipping) could this cause my car not to start due to not enough voltage to the coil? My belt used to be very taut about 2 weeks ago or so. Also how much would the belt tensioner cost and how hard is it to replace? Thanks for your help.

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Adam,
2003 Volkswagen Golf GL 24,000 miles. 1.9L I-4 TDI 5spd.

1986 300E. 115,000+ miles. 3.0L I-6 1st daily ride, around town only. (Gone)