A1 Auto Three Brothers Car Repair welcomes you to our Baltimore auto repair website. A1 Auto Three Brothers Car Repair is a popular and respected auto repair facility in Baltimore Maryland and the Baltimore County area for our honesty and expert auto repair services that our staff and mechanics provide to our customers. Each team member and mechanic in our Baltimore auto repair shop takes pride in the excellent reputation we are fortunate to have developed with both our customers and the entire Baltimore and Baltimore County area. Our shop is grateful that our customers repeatedly choose us for their auto repair and service needs and frequently send their friends and family to our Baltimore shop for their auto repair and service requirements as well.

As one of the leading auto repair firms in the Baltimore area, each expert mechanic on our team understands that the very thought of getting an automobile repaired can make most people nervous. For those who are not saavy about auto repair or are uncertain whether or not the correct repairs are being performed on your automobile our Baltimore auto repair shop is the best place for you because of the following reasons.

A1 Auto Three Brothers Car Repair pledges to all of our Baltimore and Baltimore County clients that we will not remove any part from a vehicle in order to complete an auto repair unless it is absolutely needed. Additionally our Baltimore auto repair shop promises to diagnose all auto repair issues in an honest and professional manner. Each mechanic and staff member in our shop strives to provide prompt and courteous service to all who visit our auto repair facility in the hope that you will come back to us for all of your auto repair needs.

Professional Associations & Certifications


Serviced Areas

  • Baltimore, MD

Payment Options

  • American Express, Debit Cards, Discover, MasterCard, VISA

Contact Details

  Person Paul Goeller
  City Baltimore , MD
  Zip Code 21223
  Address 3041 Frederick Avenue
  Phone Number (410) 566-5878

Products & Services

Battery, Charging and Starting Systems

Battery, Charging and Starting Systems

A1 Auto Three Brothers Car Repair is the leader in Baltimore for the service and repair of auto charging systems. Our Baltimore auto shop team take the time to educate our clients in knowing that the battery, starting and charging systems in their car or truck play pivotal roles in ensuring the dependable operation of your vehicle while driving in and around Baltimore. The car battery stores electrical energy that is then converted by the starter into the mechanical force necessary to start your engine. The alternator then serves the purpose of producing the electrical current - initially provided by the car battery - that is necessary for the car's electrical needs when the engine is running. The ignition module turns the low voltage supply to the ignition coil on and off, which in turn is converted to a higher voltage that is necessary for the vehicle's ignition system to operate. The voltage is used to engage the spark plugs and create the sparks that are necessary to ignite the combined air/fuel mixture in the car engines cylinders. It is this ignition that is ultimately used to power the pistons that in turn begin the rest of the process of powering your car or truck.

Clutch service and repair

Clutch service and repair

A1 Auto Three Brothers Car Repair provides complete truck and auto clutch repair and service at our Baltimore Maryland transmission and repair shop. A1 Auto Three Brothers Car Repair recommends that the operating linkage of your clutch should be checked periodically at our Baltimore shop to assist you avoid early failure and keep your auto or truck in top performing condition.

Fuel System

Fuel System

A1 Auto Three Brothers Car Repair specializes in the fixing and service of automotive fuel systems at our Baltimore auto repair shop. The fuel system in your car or truck operates with the rest of the engine control system to minimize your truck's emissions while ensuring optimal vehicle performance when driving in and around Baltimore. The fuel system should be inspected immediately at our Baltimore shop if you think there is a problem or you smell gasoline. The fuel system delivers fuel from the fuel tank to the fuel injectors, passing the fuel through a fuel filter for cleaning in the process. There is a pressure regulator in the fuel system that controls the fuel pressure to make sure the engine performs correctly under varying speeds and load conditions. When reaching the fuel injectors a metered amount of fuel is sprayed into the engine cylinders before being ignited to in turn power your car or truck. Many modern day vehicles use a return line system that returns unused fuel to the fuel tank to be re-circulated in the fuel system.

  • I would recommend this business

Dan and Paul are the best. Worked to better my call not steal my money.

Value for money
Service & support
Overall ratingExcellent

Customer Testimonials

Great service. They found few minor items needed for inspection. They showed me what the failures were which they fixed at a reasonable price. Of course I could of done it myself but they were so quick and efficient it wasn't worth having to worry about. Gave me recommendations which I will come back to have done.

Wife and I have taken our cars there many times. Always reliable. They don’t do work if it isn’t necessary. Very fair and trustworthy. They provide options of what is and isn’t a priority. Recommend them to all our friends.

Three brothers are very professional con courteous and they take care of your needs and give you the best service you can get any other auto car spot

I had a very positive experience at A1 Auto Three Brothers, went in for the state inspection, and it was quicker then expected. Other shops in the area were either rude on the phone, not available, or charging more than I had researched it should cost. Based on my experience here I would definitely come back and recommend this shop for the same or other services. They were professional and efficient and who doesn’t appreciate that in a car shop!

Came in to get my MD State Vehicle inspection. The gentleman at A1 Auto were fantastic. They were courteous, timely, and knowledgeable. I would definitely recommend A1 Auto for any car service!

Carl and George are great. Very respectful and attentive, you're greeted immediately and work is done in a reasonable time.

I’ve been coming here for the past 3 years. I’m not very fluent in ‘auto’ but the staff is always very helpful and gives detailed explanations of everything. Always a pleasant experience.

Really nice place and courteous staff. I was impressed with their professionalism. It was my first visit and I didn’t feel that I’m a stranger.

Great experience in my visit here today. I had a tire light coming on and was preparing myself to be told I needed to replace one or more, and they actually checked out my tires, made a quick fix (I was lucky it was nothing big this time!), and sent me on my way without a charge. This quick and courteous treatment definitely built my trust, and I will be recommending them to everyone I know who is looking for a trustworthy auto shop in Baltimore! Thank you so much!

Great experience!! They were able to get me in early the day following a break down while traveling across country and promptly fixed my over heating problem. Even called the next day to ensure everything was running properly!! Thank you!!

These guys deserve the high ratings they are getting. I got my inspection and an oil change this morning and can say that they are as professional as they come. Five stars.