A mobile mechanic is an auto mechanic who travels to customers and provides vehicle maintenance on-site, rather than in a garage. This service is becoming increasingly popular because of its convenience, allowing customers to save time and avoid towing charges. As a mobile mechanic you can provide most of the services that are available in a garage, which includes electrical maintenance, transmission service, engine repairs, air conditioning recharging, battery replacement, and brake repair. Many mobile mechanics work weekends and holidays.