car doesn’t have an oil or trans dipstick…dumb nerd idea…can one be installed ? I’ve never had a dipstick go kaput, but a computer ? Yep.
Search Volvo specific parts sites. There might be one offered. My Mustang has no trans dipstick but there is an aftermarket one I installed. My Audi has no dipstick but it still had a dipstick TUBE so I bought one from an Audi specialty parts site and popped it right in.