Alternator belt

[kitmanrally]

Hi all, Can anyone tell me the length of the alternator belt for a 97 (W202) C230K. this belt drives both the alternator and the Supercharger. My local Merc dealer recons it's 1875, but they did not suggest what I do with the spare 9-10 inches of belt. I can't look at the old one as my son changed it for me whilst we were away on holiday, and had a struggle fitting the new one I had bought in preporation as it is obviously too short, but for the record this one is 1325 long. Thanks in anticipation for any help/advise anyone can give me.

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[AcousticplayerJ]

There should be an idler wheel or something as a tensioner. You want it to be pretty tight on there, but the belt should still have a little "give" to it.

[kitmanrally]

Thanks for response, and appreciate what you are saying, there is an idler wheel, as well as the adjuster wheel, and know it should be fairly tight, but rather than keep going back to the factors for different size belts, just wondered if anyone knew what length the belt is?