European Car Authority

9131 Willows Rd NE
Redmond, WA 98052 US
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European Car Authority, Inc. has been providing the best Mercedes-Benz repair and service since 1995 to the Redmond, Washington area. Ken Seaton, owner/technician, is committed to ensuring that customers of European Car Authority receive quality service with integrity. With over 25 years working on Mercedes-Benz cars, as well as Mercedes-Benz factory training, Ken is highly knowledgeable and experienced. We will walk you through any recommended repairs necessary, while addressing all of your concerns and will receive authorization before any work is started on your European vehicle.

European Car Authority is your alternative to the Mercedes-Benz dealership service center in Redmond, WA. We offer quality workmanship coupled with integrity. At European Car Authority we install Mercedes-Benz factory parts only and use the newest generation of computerized diagnostic scanners, tools and equipment. Our technical library is complete with a online technical data, recall notification and Mercedes-Benz factory service bulletins. We pledge to go that extra mile to ensure your complete satisfaction!

Our 4 bay Mercedes-Benz repair facility in Redmond is equipped with the latest technology and computerized diagnostic scanners, tools and equipment for the best Mercedes-Benz repair in Redmond, Kirkland, Bellevue and Sammamish, WA. Our 3 certified technicians specialize in Mercedes-Benz cars and will walk you through the recommended repairs addressing all of your concerns, as well as receiving authorization before any work is started.

The European Car Authority Difference

We use Autologic diagnostic scanners, the newest most up-to-date scanner available to repair your Mercedes-Benz!

We have invested in the most up to date cutting edge diagnostic scanners available. To remain at the top of our industry, Ken and the team will be attending an upcoming Autologic Training Conference focusing on the newest capabilities of the scanners & software we invest in! We are one of the few independent Mercedes-Benz shops in the Seattle area that owns this dealer-level diagnostic solution and continually attend training conferences.

The Autologic diagnostic software with the backup of factory-trained master technician support and practical training, allows European Car Authority to work at the highest level and specialize in your European car repairs! We also provide Performance Tunes & Upgrades through the Autologic Computerized System!

We go that extra mile to ensure your complete satisfaction! Our satisfied and loyal Mercedes-Benz customers have kept us serving the Eastside since 1995!


  • Contact-Free Service
  • Vehicle Sanitizing


  • Just a note to thank you for getting our car right in and serviced. As always, we appreciate your honesty and tremendous service.

    S & L Kosmider
  • Our total experience with your company was something we will recommend to any European Car owner we know in the Seattle area.

    D & L Tarr
  • ECA has continued to do good work for me over the years. I actually specifically just bought another European car to be able to maintain Ken as my mechanic.

    Satisfied Customer
  • We have had our cars serviced at ECA for many years, Ken will always call after the service inspection and let you know what is in need of repair and the cost. The service and knowledge is excellent and the repairs are done in time. He is a straight-up honest technician. I wouldn't go anywhere else.

    Satisfied Customer

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