Hi Alan
I take it you're after the exterior handle?
Just looked on eBay and can't find any on there, can only imagine it is a common failure item and hard to source?
Possibly they are common on other models of E36 and may cross over on part numbers?
Try www.realoem.com....put the last 7 digits of your Vin in the search box and it will bring up your model. Then you can search via part number
Let us know how you get on with finding one, hopefully my Z3 handles won't fail but if they do then it's nice to know where to locate a replacement
Cheers, Trevor