I have a 2012 Smart fortwo Passion cabriolet. The soft top on my car is having trouble opening all the way. I took it to my one and only Mercedes dealership here on Maui and they said that I need new relays but also said I need two new wiring harnesses. I can understand the new relays because they are just a switch which can go bad, the question I have is why do I need two new wiring harnesses ? The relays are only $33 but the wiring harnesses are over $400. I would appreciate any input that you guys can give me. I thought I would give you the part numbers and if you look at the schematic you will understand more of what I'm concerned about The relays part number is A0009828123 The two wiring harness numbers are A4518200104 that's the $358 one and the 2nd one is A4518200204 that is the $73. I called the Mercedes dealership and Portland Oregon and talk to one of the service techs and they said unless the car was damaged or in a fire that there should be no reason to have to replace the harnesses. Again any input this community can give me would be much appreciated.