Drivers search by the symptom or the job: 'brake repair near me', 'check engine light', 'oil change', 'transmission shop', sometimes with the make of their car. Many of those searches happen with the car already making the noise, and they end at whichever shop looks trustworthy and is open.
Reviews carry more weight here than in most trades, because the customer can't judge the work for themselves. They look for fair prices, honest diagnoses and cars finished when promised, and they notice how a shop answers its complaints.
Unlike trades that drive to the customer, your customers drive to you. Your location is fixed, and because the searcher's distance counts, the edges of your area are the hardest ground to win.