There is a place called Benz Friends just the other side of the Duwamish waterway. I’ve never taken my car there but heard lots of good things over many years. I always go to Phil Smart as they have always done a great job and given me a ride to and from the shop.
Also, re Phil Smart, they have a shop on east Pike (on a hill to the east of downtown Seattle) and also one on Airport way, about due east of the baseball stadium. Both do great work. You can get their address from their web site and use Google maps to plot a course