Certified Diagnostic Technician & Founder of Mechanic Base
Hi, I’m Magnus Sellén, and I’m a certified automotive diagnostic technician and the founder of Mechanic Base. I’ve spent more than ten years working in professional workshops, diagnosing and repairing vehicles from brands such as Volkswagen, Audi, BMW, and Mercedes-Benz.
Before starting Mechanic Base, I specialized in advanced electrical and drivability diagnostics and competed in motorsport with Sellén Drifting. The mix of workshop experience and racing background shaped the practical, detail-driven approach that defines my writing today.
I launched Mechanic Base in 2018 to share real mechanical knowledge, with clear reasoning and step-by-step diagnostic methods, to help drivers and DIYers fix their cars with confidence. Every guide I write, or review, is based on genuine shop experience and verified testing.
Expertise and Certifications
- Certified Automotive Diagnostic Technician
- More than a decade of hands-on automotive repair experience
- Mobile Air Conditioning (MVAC) Certified
- Certified Electric Vehicle Technician (CEVT)
- Former motorsport driver with Sellén Drifting
Areas of Focus
- Electrical and drivability diagnostics
- OBD-II fault code interpretation
- Maintenance and repair procedures for European cars
- Practical troubleshooting for DIY mechanics
Popular Guides by me
- P0420 Code: Meaning, Causes & How To Diagnose It
- What Is Limp Mode And How To Fix It?
- The 89 Most Common Symbols On Your Car’s Dashboard
- Why Does My Car Shut Off While Driving?
- 29 Types of Cars: Different Vehicle Body Styles With Pictures
Follow me
You can see my repair demonstrations on the Mechanic Base YouTube channel or read my latest articles on this site.
You can read more about us on our about page.