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How to Sue a Mechanic Shop

Camila Lopez - Mechanics - December 1, 2023

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    Did you take your car to a mechanic shop because it needed repairs, but the mechanic shop didn’t perform the repairs, overcharged you, or negligently worked on your car? If this happens, consider filing a lawsuit against the mechanic shop in small claims court. In this article, we go over how to sue a mechanic.

    Did you know that one of the first steps before suing tends to be sending a demand letter? We have a free tool powered by AI that helps you create a demand letter to a mechanic. Check out our demand letter tool.

    Common Complaints and Lawsuits Against Mechanic Shops 

    Here are some common complaints filed against auto repair shops in small claims court: 

    • Incorrect or bad estimates. You took your car to a mechanic shop and got an estimate for $500 for necessary repairs. When the work was completed, and you attempted to pay for the repairs, you were told it was actually $1,000 for the repairs. 

    • Fraud. You took your car to a mechanic, and they charged you for “new” parts, but in fact, the parts were used and came from a junkyard. 

    • Poor mechanic work. You took your car to a mechanic shop for repairs, but the work was improperly performed, and the next time you drove your car, it broke down. 

    • Damage to your car. You took your car in for repairs, and the mechanic shop scratched the paint off your car as they were making the repairs. 

    • The mechanic shop didn’t perform. You took your car to a mechanic shop, and you paid for repairs that were never performed. 

    Here are some small claims lawsuits against auto repair shops we reviewed:

    Case Facts 

    Case Outcome

    A San Mateo small claims lawsuit was filed against an auto repair shop for improper repairs and improper car services. 


    The customer who filed the lawsuit was seeking a total of $10,000. That amount was intended to cover the cost of a replacement car engine, as well as lost income. The person suing was an Uber driver and could not work without a properly functioning car.

    The court awarded the person suing a total of $7,500 plus an additional $150.00 in court costs. It is unclear from the court’s decision why they won that amount.

    A Solano small claims lawsuit was filed against an auto repair shop for improperly performing a paint job. 


    The customer sued for a total of $3,500, the amount needed for a new paint job. 

    The court awarded the person suing a total of $1,500 plus an additional $50 in court costs. It is unclear from the court’s decision why they won that amount.

    An Orange small claims lawsuit was filed against an auto repair shop for poor workmanship.  


    The customer sued for a total of $10,000, claiming the improper work done to the car’s roof had caused a leak and that other parts of the car were poorly repaired as well. 

    The court awarded the person suing a total of $10,000 plus an additional $120 in court costs. 


    The auto body shop did not attend the hearing. As a result, the judge based their decision on the evidence presented by the person suing and any other relevant information available to them and found the auto body shop liable for damages. 


    Can You Sue a Mechanic Shop For Negligence? 

    You can sue a mechanic or a mechanic shop if a mechanic negligently repaired your car. The mechanic shop, as well as the mechanics that work there, have a duty to properly repair your car and ensure that it is safe to drive. Whether a mechanic acts negligently is based on whether another mechanic would have done the same work under similar circumstances.  

    To win a negligence case in small claims court, you will have to prove that the mechanic acted differently than another mechanic would have when repairing your car and the damages that you sustained because of the mechanic’s negligence. You will also need to prove other elements of negligence. If you have any doubts about your negligence case, consult with an attorney that specializes in this type of law, as it is quite nuanced. 

    Can You Sue a Mechanic Shop For Refusing to Release Your Car? 

    Generally, after a mechanic has finished work on your car, you expect to have the car returned to you. However, if you refuse to pay because the receipt for repairs is much higher than you were told or the mechanic shop performed unauthorized repairs on your car, a mechanic can put a mechanic’s lien on your car because you refuse to pay.

    Here are some facts about mechanic liens: 

    • A mechanic’s lien basically means that a mechanic can keep your car until you pay your bill in full. 

    • There are rules to filing a mechanic’s lien, and if a mechanic improperly places a lien on your car and refuses to return it to you, you can take legal action or threaten to take legal action. 

    • If you are trying to fight an invalid mechanic’s lien, small claims court may not be the best option. Most small claims courts cannot force someone to do something, the court can only award monetary damages. In this case, the small claims lawsuit will be about the “debt” that gave rise to the lien in the first place. The court will not help you get your car back from the mechanic. 

    What To Do Before Suing in Small Claims Court 

    Communicate Directly With the Mechanic Shop 

    If the mechanic shop damaged your car or there is a problem with the estimate the mechanic shop provided, make sure you voice this directly with the mechanic shop before taking legal action. The mechanic shop might not be aware of the problem and may be willing to help you fix the issue right away. 

    Try to explain your problem calmly, so the mechanic shop is able to understand your issues. Remember, mechanic shops want customers to keep coming to them for their car problems and want to keep a good business reputation. For the most part, the mechanic shop would rather have you leave a satisfied customer and fix the problem if they can. Of course, this is not always the case, and you have other options you can take against the mechanic shop if necessary. 

    Save All Evidence 

    The moment you notice a problem with a mechanic shop’s repair work, save any evidence you might need later down the road. If you do end up suing in small claims court, you will need to prove to the judge why you are suing and how you calculated the amount you are suing for. 

    Try to collect and save all evidence related to your relationship with the mechanic shop and the dispute at hand. 

    Here is a checklist of potential evidence you may want to save: 

    • Any correspondence between you and the mechanic repair shop. This means written communications like text messages, emails, etc. 

    • Receipts, estimates, or invoices. This can be from the mechanic shop that performed the repairs and also any other mechanic you had to take your car to if the mechanic shop improperly repaired your car. 

    • Pictures of your car. Before the repairs, if any, and after the repairs (this is especially helpful if you are claiming the mechanic shop damaged your car). 

    Take Your Car to Get Checked 

    If your claim against the mechanic shop is for damage to your car or improper repairs, consider having your car checked by another mechanic. You may be able to get a free estimate for how much it would cost to fix the improper repairs. You can use that estimate later in small claims court to prove that the car was, in fact, improperly repaired and to prove how much you will need to fix the bad repair work. 

    Send a Demand Letter 

    A demand letter is a letter that outlines a set of requests you want the mechanic shop to perform. For example, if the mechanic shop improperly worked on your car engine and it doesn’t work, you can ask the mechanic shop to fix the improper repairs in the demand letter. 

    Here are some reasons why you should send a demand letter before suing in small claims court: 

    • A demand letter is useful if you want to inform the mechanic shop that if they do not meet your demands, you intend to sue them in small claims court. 

    • Some small claims courts require you to ask the party you are suing for payment before suing. For example, in California small claims court, you are required to demand payment before suing someone in small claims court. A demand letter can be used to fulfill this requirement. 

    We have a free tool powered by AI that helps you create a demand letter to a mechanic. Check out our demand letter tool.

    Here is a video on how our demand letter tool works:

    Steps to Suing a Mechanic Shop in Small Claims Court 

    If you have tried to resolve the dispute directly with the mechanic shop and have not been able to get a response, or the mechanic shop refuses to address your concerns, it may be time to escalate your dispute to small claims court

    Here are the steps to suing a mechanic shop in small claims court:  

    1. Prepare the lawsuit. 

    2. File the lawsuit. 

    3. Notify the mechanic shop that they have been sued (this is called “serving”). 

    4. Prepare for and attend the small claims hearing. 

    People Clerk can help you file and serve your small claims lawsuit against a mechanic shop.  

    Step 1: Prepare Your Small Claims Lawsuit Against a Mechanic Shop 

    In order to sue a mechanic shop in small claims court, you will need the correct legal name and the correct mailing address for the mechanic shop. This is necessary both because you need to notify the mechanic shop that you have filed a lawsuit against them and to make sure you are suing the right business. 

    Figure out if the mechanic shop is doing business as an LLC or Corporation under a “trade name” or “assumed name.” For example, you took your car to Ace Mechanics for repairs, but Ace Mechanics could be the trade name for Ace Mechanic Shop LLC. Businesses will use trade names for marketing purposes if their legal name is long or hard to recognize. 

    Below are some ways to search for a mechanic shop’s legal name: 

    • Check any documents the mechanic shop gave you and see what names are listed as the business name. 

    • Run a business license search. Using the address of the mechanic shop, you can search for their business license within the city or county database where the mechanic shop is located.  

    • Run a search on the Secretary of State website in your State, as the business may be registered with the Secretary of State. 

    You will also need to decide how much to sue for (keep in mind that each state has different small claims limits). Make sure to review how much you have spent in fixing your car or how much you paid the mechanic as a starting point.

     Step 2: File Your Small Claims Lawsuit Against a Mechanic Shop 

    Next, you need to prepare the lawsuit against the mechanic shop using the proper form. This is usually available for download on your local small claims court website. Here is a guide for California small claims and a guide for New York small claims

    The court will want to know why you are suing the mechanic shop, how much you are suing the mechanic shop for, and finally, how you calculated the amount you are suing the mechanic shop for.

    There are several ways you may be able to file the lawsuit: 

    1. In person at your local small claims court, 

    2. By mail (available in most courts), 

    3. Electronically (not available in all courts), 

    4. By fax (not available in all courts). 

    Step 3: Serve the Mechanic Shop 

    Once you file your small claims lawsuit with the court, you will then need to “serve” (notify) the mechanic shop that you filed a lawsuit against them. 

    Each state will have its own rules on how to serve a lawsuit. Make sure to review the rules for serving that apply to you. 

    • The rules in each state tend to be very specific about where you can serve the mechanic shop, who you can serve on behalf of the mechanic shop, and how much time you have to serve the mechanic shop. 

    • In some states, the court clerk may serve your lawsuit for you, while in other states, you will need to hire a professional licensed to serve legal documents (i.e., a process server) or a sheriff to serve your lawsuit. 

    Step 4: Prepare for Your Small Claims Hearing Against the Mechanic Shop

    Preparing for your small claims hearing is one of the most important steps. The goal is to win your lawsuit against the mechanic shop. The key here is to be as prepared as possible because the more prepared you are, the better you set yourself up for the hearing. 

    Here are tips that will help you win your lawsuit against a mechanic shop: 

    • Research the law. It is good practice to read up on any laws that support your claims.  You can do your own research or consider consulting with a lawyer if you have any doubts about your case or the law. For example, if you are claiming the mechanic shop was negligent when repairing your car, you may want to research how to prove negligence. If you have any doubts, you can always discuss your case with a lawyer. 

    • Prepare your evidence. This is the most important part if you want to win at your small claims hearing. You want to prove your case with evidence that you have saved throughout the process. Consider including pictures of your car if the mechanic shop damaged it (and ideally pictures of the car before it was damaged). Also, consider including emails, text messages, and other correspondence between you and the mechanic shop. 

    • Prepare your statement for the judge. At the hearing, you will be able to present your side of the story. The mechanic shop will have the same opportunity.  Small claims hearings are usually informal, and the judge will ask you questions about what happened. Be prepared to tell the judge why you are suing the mechanic shop. Discuss background facts of your case, like what repairs you paid the mechanic shop to perform. Also, discuss how much the mechanic shop owes you, and how you calculated this amount. 

    • Bring copies of the evidence. Make at least three copies to bring to the hearing (one for the judge, one for you, and one for the mechanic shop). 

    Consider Filing a Complaint Against a Mechanic Shop

    Besides filing a small claims lawsuit against a mechanic shop, consider filing a complaint against the mechanic shop with a state or non-government organization. Most states have consumer protection agencies or an Attorney General’s Office that will handle complaints submitted against mechanic shops. 

    Review our 50-state guide on how to file a complaint against an auto repair shop.

    Did you know that one of the first steps before suing tends to be sending a demand letter? We have a free tool powered by AI that helps you create a demand letter to a mechanic. Check out our demand letter tool.

    Author

    Camila Lopez

    Legal Educator @ People Clerk. Camila holds a law degree and is a certified mediator. Her passion is breaking down complicated legal processes so that people without an attorney can get justice.

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