Just had my Haldex filter & oil changed today. Just as well... as very little oil came out. While the car was on the ramp at my brothers garage I checked for the Haldex ground cable after reading posts about them corroding. After Finding where the ground cable should be I realised mine had none just the empty screw hole. Using images on this forum as a guide I couldn't find it at all no evidence of a cable ever being there. Where does the cable lead to? If its gone what effect does this have? My 4x4 works fine no errors or warning lights. Thanks