So very grateful I found Zach Peterson at MBZ Scottsdale Service. The B Service schedule due on my 2013 E550 Sedan was $180-$195 cheaper than quotes from two local Mercedes-Benz Dealer Service Departments.
Zach also successfully troubleshooted and fixed a rear window air noise that was very annoying especially at speeds over 60 mph.
He also replaced a front parking light with intermittent display messages when light would sometimes not work.
They also rotated my tires upon request for a very small fee.
I couldn't be happier with the service I received today. Zach is very nice, professional and soft-spoken with a genuine humility uncharacteristic in the auto service industry. I highly recommend him and this service company. Full disclosure: I never met or knew of Zach or this business until I did a Google and Yelp search. So glad I did.