Hmm. I don't see any Canadian retailers or online sites that are showing a filter specifically for the 500. Even the ones who have updated their search by model function to include the 500. Weird.
The filter part you want is Bosch P2041. Maybe try the local auto parts store? I'd contact Bosch and ask them where you can order the filters. Their Canadian details are:
Robert Bosch Inc.
6955 Creditview Road
Mississauga
Ontario L5N 1R1
Telephone
(905) 826 6060
Or send me a two four of moosehead and I'll post you a bunch of filters from the big box I've got sitting on the shelf