I don't think '97 models were affected by the wiring harness problem. It was mainly '93-'95 Mercedes. Have a look for yourself--is it cracking or anything?

I would try another independent shop.

-GH

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1992 Mercedes Benz 500SL
1998 BMW 528i
2003 Honda Element
2002 CBR600F4i
1977 Coachmen Motor Home