This is a GENUINE BMW Hall Sensor repair kit to fit a BMW Z4 - E89.  Please note that installation of these items is required by a skilled person and no liability will be accepted as a result of incorrect installation, or damage to the part - The parts are non returnable once the sealed packaging is opened. If you need advice, please contact us before purchasing. No returns due to mis-diagnosis of the fault, we do not supply parts on a "lets see if this will fix it basis" We have successfully repaired more Z4 roofs than anyone else, and are happy to give free advice. PLEASE NOTE, WE HAVE BEEN CONTACTED BY ONE CUSTOMER WHO'S GARAGE HAVE CLAIMED THE ITEM DOES NOT FIT CORRECTLY - THIS IS UNTRUE, THIS GENUIINE PART DOES NOT NEED TOOLS OR PLIERS TO BE FITTED CORRECTLY INTO THE RAM, IT JUST PRESSES IN BY HAND ONCE CORRECTLY ALIGNED - AS SAID, IF YOU ARE UNSURE REGARDING FITTING, PLEASE DO CALL US. WE WILL NOT REFUND FOR USED OR DAMAGED ITEMS. WE DO NOT SUPPLY THESE FOR "FREE DIAGNOSIS!" Package consists of ONE Genuine BMW Hall Sensor with wire ends to solder in to the old connector on your faulty sensor. BMW supply them like this as there are several of these in the system, and they have differing connectors. Please refer to item 7 (D, E & G) in the photo. The wiring colours may differ, in which case you need to ensure that you connect BROWN TO BROWN and the remaining wire on your vehicle to RED, regardless of it's colour. The item is 100% compatible and can be used to replace any of the sensors in the roof system. Items are brand new and come with a 2 YEAR BMW warranty (subject to correct installation)