This will work in 1986-1990 for the power sunroof function. These also work in 4 door C-900's for the rear power window switch. this switch has been checked, tested, cleaned and lubricated and is all set to go. This switch (wholesale!) is over $50.00. replacement of a broken switch is a 2 minute job. Check the picture or e-mail me to be sure it will fit your car. Get this switch now for a fraction of the wholesale price. Thanks for looking and good luck! SHIPPING DETAILS: I use the ebay shipping calculator on all my new listings, it will calculate your exact shipping for either USPS parcel post or USPS priority based on your zip code. please let me know how you like it Vs. the flat rate shipping methods many other sellers use. The main advantage with this system is you will never be overcharged for S&H! A very nice bonus. Please note that my payment details are listed below.