How to Start a Mobile Mechanic Business (6 Step Guide)

The automotive industry is one of the largest and most stable sectors in the U.S. economy, and becoming an automotive mechanic offers a rewarding, hands-on career path with plenty of opportunities for advancement.

Whether you're interested in working at local repair shops, car dealerships, or even starting your own garage, this guide will walk you through everything you need to know.

What do mechanics do?

Automotive technicians are responsible for diagnosing, maintaining, and repairing vehicles of all types—from compact cars to light trucks and SUVs. Their work involves inspecting brake systems, replacing worn parts, and performing routine services like oil changes. Many mechanics work in repair shops or at car dealerships, but others prefer to start their own repair shop.

Mechanics work with a variety of tools and diagnostic equipment. They often use computerized systems to identify issues and ensure the car is functioning properly. In today’s rapidly evolving automotive industry, mechanics are expected to stay current with new technologies, especially in hybrid and electric vehicles.

Below, you will find practical steps you can take today to start your path to becoming an auto mechanic.

6 Steps to becoming a car mechanic

Starting a new career path can be challenging, so we outlined 6 practical steps you can take to jump-start your career.

1. Do your homework

Before you start your career, it is wise to consider if this is the right job for you. Will it pay enough to support your needs? Will you be able to keep up with the physical demands of the job? These are just two of the questions you need to ask yourself before moving forward.

How Much Do Automotive Mechanics Make?

According to the U.S. Bureau of Labor Statistics, the average salary for automotive service technicians and mechanics in 2024 was approximately $49,670 per year, or about $23.88 per hour. However, salaries can vary based on several factors such as:

• Location: Mechanics in cities or states with a higher cost of living tend to earn more.
• Certifications: Holding ASE certifications or specializations can boost income.
• Experience: Entry-level technicians typically earn less than seasoned professionals.
• Industry: Working at car dealerships or as a mobile mechanic can pay differently than working in a small auto repair shop.

2. Training and education

Pursuing the right education, certifications, and training programs will set you on the right path to a successful career. Each path has unique benefits but it is best to select the path that will help you achieve your career goals.

Do I need to go to school to become a mechanic?

While formal training is not always required, it is highly recommended. Employers in both independent repair shops and dealerships prefer candidates with a solid educational background and certifications. If you opt not to pursue formal education, you will need to find a personal connection or an apprenticeship program where you can learn while working.

How long will it take to become a mechanic?

The timeline to becoming an auto mechanic depends on the education path you choose. In total, it may take anywhere from 6 months to 4 years to become job-ready, depending on the path and certifications you pursue. Here are the most common routes:

• High School Diploma or GED: Most mechanic jobs require at least a high school diploma or equivalent.
• Vocational Schools or Trade Schools: These typically offer certificate programs lasting 6 months to 1 year, giving students a fast track into entry-level roles.
• Community College or Associate Degree: Completing an associate degree in an automotive technology program usually takes about 2 years and provides a deeper understanding of vehicle systems.
• Apprenticeships: These allow students to earn while they learn and may last 2 to 4 years.
• On-the-Job Training: Some auto mechanics begin their careers with no formal education and learn through hands-on experience at a repair shop or dealership.

3. Complete certifications

The most respected credential in the field is the ASE certification, offered by the National Institute for Automotive Service Excellence. Mechanics can earn ASE certification in areas such as engine repair, brake systems, electrical systems, automatic transmission, and heating/air conditioning.

To become ASE certified, you’ll need at least two years of work experience or a combination of formal training and on-the-job training. You’ll also need to pass one or more certification exams. Mechanics who pass tests in all major areas and have the required work experience can earn the title of Master Technician.

Being ASE certified shows employers and customers that you're a professional who meets industry standards. Many employers pay higher wages to certified auto mechanics, and some dealerships require ASE credentials for certain positions.

4. Prepare for your interview

Finding the right shop to start your career at can be a daunting task. It is often easiest to start at an express shop so you can get your feet wet before pursuing your career goals. Once you have applied to a shop, it is time to start preparing for the interview.

Mechanic Job Interview Questions

Whether you're aiming for a position at a dealership or local garage, be prepared for a formal interview. Here are common questions you may encounter:

• Tell me about yourself and your experience as an automotive technician.
• Why do you want to work for our company/shop?
• How do you stay up to date with new automotive technologies and repair techniques?

• What certifications do you currently hold (ASE, manufacturer-specific, etc.)?
• Are you comfortable working weekends, evenings, or overtime if needed?

When answering, emphasize your hands-on training, work experience, and your commitment to continuous improvement. Don’t forget to highlight soft skills like teamwork, communication, and adaptability.

5. Utilize modern tools

The modern repair shop has embraced new technology to help improve efficiencies and revenue. Strive to have a solid understanding of modern diagnostic tools, apps, and software so you can hit the ground running.  Another way to stand out to your future employer is to already have experience with their shop management system, so they don’t have to train you as much.

6. Get your hands dirty

Let the fun begin! Once you have landed your first job, learn to fail fast and ask questions as you meet more experienced technicians. Ask yourself each week if you are enjoying your job and if you think this is still the right career path for you. Don’t forget to make connections in the industry to boost your network and career path.

Final Thoughts

A career as an auto technician is more than just a job—it’s a skilled trade that keeps America moving. Whether you're working on a simple oil change or a complex engine repair, you'll be solving real-world problems and helping people stay safe on the road. With growing demand for mechanics who can service modern vehicles equipped with sophisticated electronic systems, the field is only becoming more essential.

Whether you're just getting started in the world of auto mechanics or you're a seasoned professional looking to sharpen your skills, having the right books in your toolkit can make a world of difference.

In this guide, we’ve rounded up the best 10 books for anyone looking to master automotive repair—five books for beginners and five for professionals. Whether you're diving into DIY oil changes, understanding electrical systems, or prepping for ASE certification, these books can help you become the car mechanic others rely on.

Top 5 Mechanic Books for Beginners

1. Auto Repair For Dummies by Deanna Sclar

Deanna Sclar, a trusted name in car books, breaks down automotive repair in a clear, engaging way. Topics include basics like changing oil, identifying car parts, and performing simple diagnostics. Updated editions also include guidance on hybrid and electric vehicles.

This book is great for high school students, DIY car owners, and anyone who wants to enhance their car repair knowledge. It teaches vehicle maintenance fundamentals and gives you the confidence to handle everyday car repair tasks.

This book is available in paperback and audiobook format on Amazon and Goodreads.

2. How Cars Work by Tom Newton

“How Cars Work” is an illustrated mechanics book designed to make complex automotive technology digestible. It covers everything from internal combustion engines to carburetors using simple diagrams and descriptions.

Ideal for visual learners and those completely new to auto mechanics. This is a great first book for beginners, high school students, and anyone wanting a strong visual foundation. This book is available at Amazon, Goodreads, and Walmart.

3. Service Repair Manuals

Service repair manuals offer detailed, step-by-step instructions specific to various makes and models. Whether you're working on a Chevy or a lawn mower, there's likely a repair manual for it.

These manuals walk you through every procedure—from basic maintenance to full rebuilds—making them excellent for DIY mechanics. The manuals are great for car owners who want to perform their own maintenance and repairs, especially oil changes and part replacements.

4. Auto Repair and maintenance for Beginners by Dave Stribling

This is a more recent release that blends practical guidance with a conversational tone. It’s designed for car owners who want to understand what’s under the hood without going back to school.

It breaks down diagnostics, basic electrical systems, and essential car repair projects with clarity and confidence. DIYers, automotive technology students, and anyone just entering the field will benefit from this resource. This book is available on Amazon and Target.

5. ASE Study Material

While not a traditional repair resource, these ASE guides cover specific topics you may be interested in. In addition, these resources can also help you study for your ASE exams/certification. These study guides cover everything from refrigerant to engine diagnostics.

These resources are great for beginners looking to become ASE certified or just want to deepen their technical knowledge of car repair. You can find these ASE resources on the ASE website.

Top 5 Mechanic Books for Professionals

1. Automotive Technology: A Systems Approach by Jack Erjavec & Rob Thompson

Used in technical schools and ASE training programs, this comprehensive study guide covers every vehicle system in detail. From brakes to diagnostics and internal combustion engines, it’s a powerhouse of professional knowledge.

Excellent for instructors, professional auto mechanics, and shop technicians. It’s also used as a curriculum base in many accredited auto mechanic programs. This book can be found on Amazon and Goodreads.

2. Engine Repair (A1) – ASE Test Prep Study Guide by Delmar Cengage

If you’re serious about becoming ASE certified, this study guide is one of the best tools to prep with. It’s focused on the A1 Engine Repair certification exam and is updated with the latest questions and procedures.

It contains practice questions, answer keys, and step-by-step breakdowns of engine troubleshooting and repairs. Mechanics pursuing ASE certification and current techs looking to refresh their credentials will benefit from this book.

3. Bosch Automotive Handbook

This is not your average repair manual. The Bosch Automotive Handbook is a dense, technical reference filled with precise definitions, formulas, and design principles behind modern vehicle systems, including electrical systems and diagnostics.

A must-have for those working on diagnostics or developing automotive systems. Not ideal for beginners, but invaluable for seasoned pros. This book is available on Amazon.

4. Advanced Automotive Fault Diagnosis by Tom Denton

Tom Denton is a trusted author in the world of automotive technology. This book focuses on advanced diagnostics using real-world case studies and troubleshooting processes.

It covers OBD systems, scan tools, sensor data interpretation, and diagnostics strategies used in modern repair shops. ASE certified professionals, diagnostic techs, and repair shop leads will appreciate this book. This book is available at Walmart and Amazon.

5. Motorcycle Basics Techbook by Matthew Coombs (Haynes)

Auto mechanics often expand into motorcycles. This Haynes book explores motorcycle maintenance and repair with the same detail they bring to their car repair manuals.

Great for mechanics who want to branch into motorcycle repair or work at specialized repair shops. This book is available on Amazon and Thriftbooks.

Other Mechanic Resources

While books are still relevant, many mechanics have transitioned to other resources like YouTube videos and podcasts. Here are some of our favorites.

YouTube

‍YouTube is a gold mine for car repair veterans and DIYers alike. Some of our favorite channels include:

• Enright Auto - for new tools and repair techniques
• Brilliant Auto Care - for maintenance tips and guides
• Tuner World - for DIY and performance videos
• Royalty Auto Service - for repair videos and industry updates
• Super Mario Diagnostics - for troubleshooting videos
• Rainman Ray’s Repairs - for repair and diagnostic videos

Reddit

‍Reddit can be another powerful resource for new techniques plus an online community to answer questions you may have. Some of the best subreddits include:

• r/mechanic - for repair advice
• r/Justrolledintotheshop - for a good laugh
• r/MechanicAdvice - for general repair advice and discussion

Podcasts

‍Podcasts can be entertaining and an easy way to learn while working or driving. Some of our favorites include:

• Automotive Diagnostic - for a balanced diet of everything related to auto repair
• Confessions of a Shop Owner - for brutally honest industry insights and a better way forward
• The Jaded Mechanic - for industry reflections and insights
• Changing The Industry - explore common problems in the automotive industry and how to address them
• Remarkable Results - for automotive business strategies
• Gain Traction - for tire news

Final Thoughts

Investing in a good book isn’t just about reading—it’s about building your skills, your confidence, and your future in the automotive industry. Whether you’re just learning how cars work or studying classical mechanics principles, there’s a resource here that can guide you. The best mechanics know that their education never stops.

For every auto repair business, creating a clear and professional receipt isn’t just good practice—it’s essential. Whether you're working on a major vehicle repair or a routine oil change, a detailed receipt serves as a proof of payment for the customer and a legal record for your shop. It helps you maintain transparency, build trust, and protect both parties in case of disputes or warranty claims.

If you’re building your own auto repair invoice template or refining your existing process, this guide walks you through every element your auto repair receipt template should include. From contact information to labor costs, here’s what a comprehensive auto repair receipt looks like.

Auto repair shop receipt example template

We designed an auto repair shop receipt template for you to download and use in your shop. The template can be used for auto body repair shops, mobile mechanics, general repair shops, and tire shops.
Download the free template below and modify it as needed to utilize in your shop.

AUTO SHOP RECEIPT TEMPLATE DOWNLOAD

What Should Be Included in an auto repair shop receipt?

1. Shop contact information

The first thing on your receipt should be your auto repair shop’s full contact information. This builds credibility and ensures customers know how to reach you if follow-up is needed.

What to include:

• Shop name
• Address
• Phone number
• Email address
• Website (if applicable)
• Business logo for branding

A well-organized template with your logo and contact information at the top makes your documents look professional and trustworthy.

2. Customer Information

Next, capture the customer’s name and their contact information. This ensures the receipt is tied to the correct individual and helps with record-keeping for recurring car repair clients.

What to include:

• Customer's name
• Address
• Phone number or email

This section ensures your auto repair business can easily identify who the repair services were for and reach them quickly if needed.

3. Date of service and invoice number

Every mechanic receipt needs to include the date of service and a unique invoice number. This creates an accurate timeline and helps organize documents chronologically for tax reporting, audits, or warranty purposes.

What to include:

• Date the service was completed
• Unique invoice number
• Optional: technician’s name or initials

4. Vehicle information

For any automotive service, tying the repair order to a specific vehicle is a must. This helps with real-time service tracking, vehicle history reporting, and future maintenance recommendations.

What to include:

• Year, make, and model
• Vehicle Identification Number (VIN)
• License plate number
• Mileage at the time of service

5. Description of services performed

This is the heart of the receipt. Clearly outline what repair work was done and what repair services were provided. The more detail, the better.

What to include:

• Itemized list of services
• Description of each job (e.g., “Brake pad replacement” or “Engine diagnostic”)
• Associated labor costs for each service
• Cost of parts

6. Parts and material breakdown

An itemized list of parts and materials used in the repair work is just as important as the labor section. This transparency helps avoid disputes and gives your customer clarity on what they’re paying for. Most auto repair shops don’t show the markup percentages on parts but you can if you want to maximize transparency.

What to include:

• Part name and number
• Quantity used
• Cost per unit

7. Balance Due and Payment Summary

Now it’s time to outline the financials, from the subtotal to the total amount. This section should also include the total cost, taxes, discounts, and any payment options you accept.

What to include:

• Subtotal (before tax)
• Taxes (state/local)
• Any discounts or promo codes
• Total amount due
• Payment methods accepted (e.g., cash, credit card, financing)
• Amount paid and remaining balance
• Due date for final payment, if applicable

Including this section with clear headings avoids confusion and can prevent billing issues down the line. It also ensures the receipt can function as proof of payment. Lastly, this is a great place to feature your financing options (if applicable).

8. Warranty Information

Warranty details protect both your shop and your customer in case a part fails or a job needs to be redone. If your auto repair shop offers any warranty, you need to clearly list what’s covered and for how long.

What to include:

• Warranty length (e.g., 12 months or 12,000 miles)
• What is and isn’t covered
• Instructions for claiming the warranty
• Any third-party coverage (for example, if a part manufacturer offers a separate warranty)

This section should be written in clear, non-technical language to help customers fully understand their protections. You may want to include a signature line for the customer to acknowledge receipt of the warranty.

9. Streamline receipts

Creating receipts and invoices by hand can be tedious but Tekmetric streamlines that for you. Tekmetric can help you build faster estimates and take payments digitally with our auto repair estimate software.

Some of our features include:

• Streamlined estimate building
• Digital approvals
• Job history and reporting in one place
• Financing options for customers

Final Thoughts

A well-documented auto repair receipt protects your shop, helps your customer feel confident, and sets the tone for a long-term relationship. From capturing accurate customer information to detailing every repair service, your mechanic receipt should leave nothing to guesswork.

Don’t just think of it as paperwork—think of it as part of your shop’s customer experience. With a little extra attention to your receipt process, your auto repair shop can stand out as a professional, transparent, and customer-first automotive service provider.