Larry how many belts did you have over that tenssioner's life?
I had three on mine and is going to the forth one soon. My car have now 194K and the original tenssioner is still on. That is mainly because the tenssionr gets damaged when you untight the allen bolt. I doo mine by hand without loosening the tensioner bolt...15 min job...

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New Addition to the family
2013 Passat TDI 5Miles
2004 E500 4MATIC Wagon 95k
1996 E300 Diesel 173k Sold
1993 300E 2.8 230k Sold
1994 E320 White Wagon 373K Sold
Still dreaming about ....500E


Radu Negru