We have specialized in only Mercedes for 42 years.(If that doesn’t catch your attention, our guarantee will.)

Lakewood Mercedes-Benz Repair

Call Us:(303) 237-6262
Working Hours:
Mon - Fri: 7:00 AM - 5:00 PM

German Motors Inc. Professional Staff

Mark R. Yoakum


Mark graduated from Denver Automotive and Diesel College in 1977. He then started his career at a major Mercedes-Benz dealer in Denver where he became a Mercedes-Benz Master Technician and received the Star Technician Award in 1985. He advanced from Mercedes-Benz line technician to shop foreman and then to service manager for the entire multi-line dealership, all in 10-years. Having met his professional and personal goals at the dealer level, he set out to achieve his highest aspiration -- to own and operate his own Mercedes-Benz repair facility. In 1987 Mark began his employment at German Motors. Three years later he took control of the business. Using his extensive Mercedes-Benz dealership knowledge and experience, he transformed German Motors into a modern service and repair facility specializing solely in Mercedes-Benz. He acquired all the latest and most advanced Mercedes-Benz-approved diagnostic equipment, built a comprehensive data library, and hired and trained service technicians to his exacting professional standards. Under his direction, the shop has become known for its technical expertise and customer service.

Zack Aschwanden


Zack is our Service Manager, ASE Certified and has been in automotive management for almost ten years his first job was actually at German Motors and has been in and around the shop ever since. As a Mercedes Enthusiast, he has been in contact with Mark for years and is the only one who he would want to fix something he couldn't. Zack has had a lot of love for this shop for years and truly enjoys being around these cars and making sure they are repaired with tender loving care.



Cody joined the German Motors family of technicians in 2013. He graduated from Warren Tech Automotive Technology Program and comes highly recommended by his professors. Warren Tech is approved by the National Automotive Technicians Education Foundation (NATEF). Cody has been trained by Mark and the staff here at German motors, and attended numerous training courses through the years and is a very knowledgeable technician and a very valuable member of the team here at German Motors. 



Dustin joined the GMI team in May of 2018. Dustin was in the Air Force for 10 years before he went into the automotive field and has a great attitude and work ethic. He is a Lincoln College of Technology Graduate and received a diploma in automotive technology in 2014. He has worked in the automotive field on European vehicles exclusively since he graduated. Now he has worked hard and attended numerous classes with the German Motors team and refined his skills to be a fantastic Mercedes Benz diagnostic and repair technician. 


JP, our shop apprentice and a newcomer to the automotive industry, graduated with honors from MSU Denver in 2017 with a B.S. in Biochemistry and a minor in philosophy. JP joined the German Motors team in April, 2019, leaving environmental science behind to pursue his passion for automotive technology. JP treats each car that comes in our shop as if it were his own and approaches repairs by blending his knowledge of physics, chemistry and formal logic with the tried and true wisdom of his excellent mentors.


Office Staff

Lisa Diegel

Kasi Holley

We could not operate without our outstanding office staff. Kasi and Lisa share the bookkeeping responsibilities with Lisa handling the most challenging aspects of office administration.

German Motors - Lakewood is committed to ensuring effective communication and digital accessibility to all users. We are continually improving the user experience for everyone, and apply the relevant accessibility standards to achieve these goals. We welcome your feedback. Please call German Motors - Lakewood (303) 237-6262 if you have any issues in accessing any area of our website.