2018 MAZDA CX-5 Complaints

Engine Cylinder heads started to leak at 75k miles causing oil and coolant to leak and puddle. This was after a fuel pump recall.

Infotainment system acts randomly, changing to max volume during driving, startling driver. Also changes stations, skips audio programs and distracting driver. Rear view camera has intermittently failed to show video feed when driving in reverse.

The radio changes stations by itself, speakers/music goes in and out. The screen freezes and cannot change stations. And also the car lags on taking off sometimes. Often smells like fuel when you turn on the car, Assuming a fuel pump issue, not sure. I spoke to the salesman who sold me the car (adam) within less than 30 days of having the vehicle and told me the electrical issue with radio would be covered. Then when I called to have the issue fixed I was told it wasnt going to fixed on their behalf. This car was sold to me with a few issue that I was not aware at the time of purchase.

While waiting at a stop light the engine will turn off. This has happened three times since I’ve owned the car 2/16/2025.

The touch screen infotainment system has the well known “Ghost Touch.” While I am driving, the touch screen can at random, activate buttons, make phone calls, change navigation systems, and activate any other features through the display. It can at times create an extremely dangerous situation while I am driving because the drivers attention is suddenly and at random being taken from the road. This happens with increasing frequency and there is no way to deactivate the touch screen. Mazda is aware that this issue is widespread and has done nothing about it, leaving it up to drivers to decide if they want to shell out hundreds of dollars to have the issue fixed or continue driving the vehicle under dangerous situations.

Issue with the engine cylinder head leaking engine oil from the side of the cylinder head, where the casting has a defect. Leaks engine oil onto the flashing for the exhaust and exhaust manifold, where it could catch fire. The problem has been confirmed and diagnosed by a licensed mechanic. However, the dealer would not take responsibility for repair or assistance in repair. There are no warnings, while driving and after stopping, the smell of burning oil comes into the car and also smoke from the engine compartment.

Sometimes, the breaks will not go all the way down to the floor and act like theyre not working. it's very odd and only does it once in a while. i have constant issues with the technology in the car. it changes my music, the buttons get stuck and my it acts up. my aunt has the same model and is running into the same issues. i never received a letter in the mail about the last recall and have had issues where it doesnt seem like my engine is getting the power it once did. this was early on after i got the car. my gas mileage has significally decreased even after oil changes.

I've had issues with my infotainment system screen for years and have mentioned this to the dealership. But their response was that I wasn't in warranty anymore and that I'd had to just reboot the radio system on my own. Because it was out of warranty for them to check the issue, the issue was never put on my file when I went to get serviced. Now my screen has been acting up even more, nonstop, with this "ghost touch" issue that many other CX-5 car owners have also been dealing with. I've had many unsafe incidents already while driving and can cause major accidents from shift in focus on the road and back to my screen because the music suddenly turned on full blast due to a glitch that Mazda didn't care or want to resolve for their customers (even after their recall for the same type of screen for previous models with the CX3). Yes, I've researched this intently and Mazda continues to deny these claims, not wanting to recall the same screens that they continue to manufacture, dispute this glitch and defect, being negligent and not caring for their valued customers. There have already been class action lawsuits with the CX-5 but Mazda still turns the other direction in terms of placing a recall on the infotainment screens. My vehicle has also been serviced and diagnosed with "ghost touch." The issue is Mazda not wanting to fully reimburse for this problem, turning a blind eye on this for years. Mazda finally confessed that I still have an after warranty assistance program after talking to customer service for a long time. The Campaign number is CSP13.

The contact owned a 2018 Mazda CX-5. The contact stated that while her daughter was driving at 35-45 MPH, the vehicle was shaking and rattling. There were no warning lights illuminated. The vehicle was taken to the local dealer where it was diagnosed that the wheel bearings were faulty. The vehicle was repaired but the failure recurred. The vehicle was taken to the local dealer again where it was diagnosed that there were loose parts in the engine. The vehicle was repaired but the failure recurred. Additionally, the brake light was illuminated. The vehicle was taken to the dealer where it was diagnosed that the switch and mat were causing the failure. The vehicle was repaired and returned to the dealer. The manufacturer was contacted. The failure mileage was approximately 31,673.

Had an oil leak suddenly appear on the vehicle with only 55400 miles. Found there are technical service bulletins for this motor that the head cracks causing leaks. It is on many forums. Reached out to Mazda and got zero help