Book Mercedes-Benz engine repair at our Winter Haven shop. Same technicians, same bays, every time you come in.
5100 Dundee Road, Winter Haven, FL 33884
Monday to Friday, 7:30 AM to 5:30 PM
Engine repair covers a lot of ground, and almost all of it starts with the same question: what is actually wrong? An engine that misfires, idles rough, burns oil, or makes a noise you have not heard before is telling you something. Our job is to read that correctly before anyone starts replacing parts.
So we diagnose first. That means pulling codes, but a code points at a system, not at a part. A misfire code on cylinder three tells us which cylinder, not whether the cause is a coil, a plug, an injector, a vacuum leak, or low compression in that hole. Fuel trims, compression, spark, vacuum, and watching what the engine does under load will separate those in a way a code reader on its own never can.
Oil leaks work the same way. Oil runs downhill before it drips, so where it lands is rarely where it came from. A valve cover gasket, a rear main seal, and an oil cooler line can all leave the same spot on your driveway, and they are three very different repairs. We clean the area, run the engine, and confirm the source before we quote anything.
Noises get sorted by where they come from and when they show up. A tick that only appears on a cold morning is a different conversation from a knock that gets louder with rpm, and the second one we want to look at sooner.
A couple of engine problems have their own diagnostic path and their own pages: head gaskets and timing components. If your symptoms point that direction, we will tell you and take it there.
Most engines that come through our bays get repaired, not replaced. Replacement only enters the conversation when the cost of the repair stops making sense against what the vehicle is worth to you, and that is a decision we walk through with you rather than make for you.
I only allow Johnny's automotive to work on my car - Mercedes Benz C300 (well maintained and always kept clean) Im very selective on who I allow to service my car, and Johnny's Automotive exceeds all of my expectations. Walking into the lobby feels good. Its clean, inviting, and they treat you like youre a real friend, even from my first visit. I recently had an emergency and was going to drop my car off with a plan to call them at 9am. Upon arrival, I noticed they looked like they were open. I took my chances, opened the door and pleasantly surprised, they were open. It was right around 7am. Since Im an essential employee, I needed to report for duty asap. Johnny's got my car repaired in a time of urgency and got me back on schedule. I certainly had a unique situation for them, and yet, they still exceeded expectations. I will only allow Johnny's Automotive to service my car because of who they are, what they stand for and how they treat their customers. They are truly a one of a kind automotive shop. Im not an easy to person to please but they've got me. All smiles here. I gladly give then a 5 star review. Id give them 10 stars if I could. Highly recommended. Final thought.. I go to the Winter Haven location and although the lounge is smaller, it's always clean and welcoming. I dont want to leave even after my car is ready. Thanks again for taking care of my urgent repair in such a timely fashion. Im truly grateful for your service and upholding your values. Phenomenal.
Shane Wise
Verified Google Review
Usually my husband is the one that takes our vehicles to be serviced. But on that particular day I had to take it.Going to auto shops gives me anxiety because from experience they bring you a list of “issues”. I needed a service B on my Mercedes GLA350, which later turned into needing new brake pads. They were so throughout and kind during the entire process. By choice, I spent hours in the lobby doing some work on my lap top. They offered a complimentary ride to any place that I wanted to go, even a loaner car if I decided to go home. The lobby was actually calm with plenty of snacks and refreshments. The gentleman that ran the front of the counter were extremely nice and respectful. Once the car was complete, I had 4 purple roses on my dashboard (This was right before Mother’s Day weekend) Such a kind gesture! My family will be using their services in the future. I’m recommending them to everyone :)
belljm1990
Verified Google Review
I went to Johnnys because of a battery concern on my Mercedes a 220. Mike quickly wrote up my concern and dispatch the car to Edgar. They quickly proceeded to do a safety inspection as well as diagnose the problem being a secondary battery. Part was ordered and replaced in a very timely manner. Price was very competitive and a lot Less than Mercedes-Benz had quoted. Beautiful shop great people. Technicians know their business highly recommend them!!
Pat Wilson
Verified Google Review
Pick whichever one is easiest to drive to.
ASE Certified Technicians
ASE certified techs working on your vehicle
Flexible Drop-Off Hours
Convenient service options
20+ Years
2 decades of trusted service
