This automotive sensor had one job, to read the temperature and communicate it to the engine control unit. However, it fails miserably, causing engine overheating and poor fuel efficiency. The only pro is that it fits perfectly in the VW Cabriolet Engine but thats not enough to worth the purchase .the cons outweigh the benefits, making it a useless and unreliable product. Avoid THIS replacement part if you want to keep your engine running smoothly..See full review