Third brake light repair

[rjbodratti]

hello everyone -

i was wondering if anyone could tell me how to replace the third (high-mounted) brake light on my 1992 400E. i see what appears to be clips on either side of the housing, but can't figure out how to get it unhooked. i also don't want to break the thing while trying to do this seemingly simple repair.

thanks in advance for your help.