McCullough NAPA Auto Care has serviced Mercedes-Benz models since 1969.

Schedule Mercedes Check Engine Light Diagnostic in Atlanta, Georgia
A check engine diagnostic will provide our technicians with a fault code to help verify what issue your engine is experiencing. There could be a number of causes for any given fault code. Our ASE-Certified technicians will take the fault code as a starting point and begin the diagnostic process to further determine the cause of your engine problem. Once the cause of your engine issue is found, we can make the necessary repairs to have your check engine light turned off.
McCullough NAPA Auto Care staffs ASE Certified technicians with the experience and technology to properly diagnose any engine problems your Mercedes may have. We’ve been in business since 1969 and have ample experience performing Mercedes check engine light diagnostics for any Mercedes-Benz model, including all their sedan, SUV, Wagon, Coupe models, and more.
Schedule your Mercedes check engine light diagnostic in Atlanta, Georgia, below!
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Eric and everyone at the shop is fantastic. I call and they are so kind and accommodating. No wonder they have so much business!!! Despite the amount of customers they have, they treat everyone with respect and attention. Love doing business here. Could recommend more. Fast, excellent service !! -Alexa
Sam Loy
May 16, 2022A staff of gentlemen ready to answer every question with a smile and great knowledge. They not only gave me a good estimate but they completed the work a day early! I highly recommend McCullough NAPA Auto Care to you. You will not be disappointed by the care they put into your vehicle.
Byung Ham
March 13, 2020Great customer service! Eric and team did an awesome job coordinating their busy schedule with the schedule of my girlfriend and myself so that we would have a car during the work week and then trade off cars when the other was ready. They are extremely friendly and it felt like they had us as the customer in mind. Highly recommend!
Andrew r
June 10, 2021 -
The team at McCullough Auto Care are so friendly, thorough, and timely. They know the cars bumper to bumper and how to properly diagnose the problem as well as do scheduled maintenance. They really work with you to do what is necessary to make your car safe and not hit your wallet too hard! I can say that I trust Eric and his team with our cars.
Victoria Mills
October 29, 2019 -
Graham was great and was up front about everything that needed to be done. My son's jeep went down on the Saturday before Memorial Day and they had him ready around 1pm that Thursday. Quick turn around in my eyes. Nice employees, everyone was cordial and friendly.
Tim Lawrence
June 4, 2021I received great service from this location! I called them about replacing a serpentine belt and they got it done for me the very next morning. It was quick, and cheaper than some other places that I had called for the same service. Eric and his team did a great job, and they were very nice! I will definitely return for any other auto repair I may need in the future.
darya kovalska
July 13, 2021 -
I’ve taken my cars here over the years and have been delighted w the team. They’re honest, professional, knowledgeable, and will shoot you straight. Prices are fair and they’ll tell you abt issues that may or will arise in the future and to keep that in mind for future reference. Overall an A
Alex Cameron
August 26, 2020yorxx king
July 19, 2020 -
I know for me one hard thing about choosing a mechanic is brushing off all previous notions I have about mechanics Potentially not treating my car how they would treat their own car. This place has done more than exceed my expectations. I got a phone call for every update, I got a thorough description of what was to be done and what was wrong, not only that, but where the dealership said it would take them two weeks to fix my car, these guys did it in less than 24 hours. I have never been happier to spend $300 in my life. Anything I need in the future, you can be sure I’ll bring it here.
Erik Davis
September 10, 2020I was so impressed with these guys!! Family business and the guys are professional, efficient, and personable. They got my part quickly and fit me in so I could come while my kids were at school. They went the extra mile (no pun intended) to consult with another auto body shop to make sure the repair was stable. I will be coming back for all future auto needs and will recommend them widely.
Deb in Atanta
September 10, 2019This is the best place you could possibly go to take care of your car! My family and I have been going here for over 15 years and we recommend them to everyone. Eric, Bryan, and Graham are the most trustworthy guys and truly care about their customers. We all love them and are so thankful we found them!!
Rachel Walker
October 12, 2021 -
Had experienced front tire damage hitting metal debris on I-285 just before Rosewll exit. Immediately exited on Roswell and saw NAPA sign and pulled in. Place was busy! But got attention immediately by Jeff service worker. Got tire off my car no waiting. Wow! Determined rim bent but tire still good. He could have sold me a new tire and i would have not known better. So appreciative. Then met with Eric McCullough and quickly arranged to have rim fixed. I decided on new tires for safety and were worn. Eric got me great deal on tires and had my car fixed SAME day. Eric runs a super customer-focused operation. Kudos! Bruce Fike
Bruce Fike
August 1, 2020 -
What more is there to say? These guys are amazing. Their service is very thorough and quick. I was so worried about the cost of my repair but Eric and Brian put me at ease with their extremely reasonable prices! My truck is running like it's brand new again and I can't thank these guys enough!
Nicholas Kerr
March 1, 2020After recently moving to the area, I had a vehicle emergency where my transmission needed replacing. Graham immediately took me in and was SO kind, professional, and direct about the costs; one of their kind staff members even drove me home after my car was dropped for repair so that I did not have to call a car service. They were so patient with me and got my car back to me in one day completely fixed and ready to go! I will never use any other automotive repair shop in the area! ABSOLUTELY recommend without hesitation!
Brinley Bowen
July 28, 2021 -
Eric and Company are a first class operation! They get it right the first time in every time! They will pick me up and drop me off to make it 100 times more convenient. They treat me like family and look after my best interest not just their bottom line! These are the kind of people that I value doing business with
paul yurfest
February 15, 2021Always great service. Always a fair price for very highly skilled technicians. After 20 years of depending on them, I've come to trust McCullough Auto Care blindly.
Clay White
November 25, 2019Came in for emissions and they exceeded my expectations! Saw headlight out, replaced it. Saw no oil sticker, checked it and put a little in it until i can get back in for change. While waiting you could tell these guys really care about their customers and the safety of their vehicles. Definitely will be coming back here!
Nadia Perrmann
January 5, 2021 -
Great price and service! More polite and patient set of people! Along with efficiency! Such a great experience overall
Kiran Bandali
December 19, 2020 -
I have used McCullough Auto Care for more than10 years. I needed a reliable auto maintenance service because I commuted weekly to Birmingham. One of the nice things about these guys is they listen when I mention an issue with the car, go over their inspection results of my car and review my bill in detail. I have never been disappointed in their service or the cost of the service I received.
Bill Scales
March 31, 2022
What Can Cause A Check Engine Light To Be On?
Here are a few reasons why the check engine light may be on in your Mercedes-Benz.
- Worn Out Spark Plugs. Spark plugs create the spark that ignites the mixture of fuel and air to create combustion and power your engine. Dull or worn-out spark plugs can misfire, which could cause your check engine light to turn on.
- Loose or Faulty Gas Cap. That’s right. something as simple as a loose gas cap can cause your check engine light to turn on. This can cause you to lose fuel from evaporation and is an easy fix to make.
- Issues with Your Catalytic Convertor. The catalytic converter changes carbon monoxide into carbon dioxide. When your catalytic converter isn’t working properly, you’ll experience a loss in fuel economy and performance. There are many possible causes for a failing catalytic converter, all of which can cause the check engine light in your Mercedes to turn on.
- Failing Mass Airflow Sensor. The mass airflow sensor is responsible for determining how much air should enter your engine. Issues with your engine will occur when your MAF (Mass Air Flow sensor) is not calculating air intake properly. This can cause your check engine light to turn on.
If your check engine light is flashing, that means you have a serious problem. If it’s on but not flashing, there is still an issue, but not as severe. In either case, we urge you to bring your Mercedes into our shop when the light becomes illuminated. Our ACE-Certified Technicians can perform a check engine light diagnostic on your Mercedes to find the root cause of the issue and make repairs as needed.
McCullough NAPA Auto Care Proudly Serves
Serving Zip Codes:
30301, 30302, 30303, 30304, 30305, 30306, 30307, 30308, 30309, 30310, 30311, 30312, 30313, 30314, 30315, 30316, 30317, 30318, 30319, 30321, 30324, 30325, 30326, 30327, 30331, 30332, 30334, 30336, 30342, 30343, 30344, 30348, 30353, 30354, 30355, 30357, 30361, 30363, 30368, 30369, 30370, 30371, 30374, 30375, 30377, 30380, 30384, 30385, 30388, 30392, 30394, 30396, 30398, 31106, 31107, 31119, 31126, 31131, 31193, 31195, 31196
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