Mastering the workshop requires a mix of technical skill and business management:

Comprehensive Walkthrough Playlist for visual learners.

Always use the drain to avoid fines for spills.

What is failing? (engine, suspension, brakes) What diagnostic tools have you already used? Are you stuck on a specific story mission ? Car Mechanic Simulator 2015 complete guide

For more in-depth strategy, consult these community-vetted guides: