The engine in my Mazda Cx-5 was required to be replaced recently due to a known issue in the car that causes the rear head to leak. My car has less than 12,000 miles on it so the engine should not have this issue. My dealer explained to me this is a known issue by Mazda and he had seen 5-10 other cars just at his dealer. We noticed this issue when my son was driving the car and we saw fluid pouring out of the bottom. We had him stop the car immediately and not drive. I tried numerous times to get Mazda to engage to provide a better warranty given it is a new car should not have a blown engine with only 12,000 miles and it is a known issue but they refused to provide any support. I asked about why no recall and they just stated there is no recall for this issue, although the dealer highlighted Mazda is aware of a flaw in the car that caused the rear head to leak. I would like to seek some action with Mazda to make them deal with this very concerning issue

- Fairfield, CT, USA

Mazda Cx-5. consumer writes in regards to vehicle being totaled as a result of loss of engine power.

- Branchburg, NJ, USA

The contact owns a 2018 Mazda Cx-5. while driving 20 mph and below, the vehicle failed to accelerate. The contact had to depress the accelerator pedal with force to increase the speed. The contact took the vehicle to findlay Mazda (7760 eastgate road, henderson, nv 89011, (702) 955-5555) to be repaired per NHTSA campaign number: 19V497000 (engine, power train); however, the repair did not correct the failure. The contact took the vehicle back to the dealer, but they were unable to locate any failure codes. The manufacturer was contacted and provided case number: 1-2318934006. The vehicle was not repaired. The failure mileage was 24,800.

- Boulder City, NV, USA

The contact owns a 2018 Mazda Cx-5. when the engine was warmed up and the vehicle was placed in park, the accelerator pedal automatically dropped to the floorboard. The failure caused the vehicle to drive forward and the driver to lose control of the vehicle. The vehicle was taken to roger beasley Mazda georgetown (7551 ih 35 South, georgetown, tx 78626, 512-591-9313) to be diagnosed, but the failure could not be duplicated. The manufacturer was not contacted. The failure mileage was 7,226.

- Austin, TX, USA

Vehicle went into limp mode while passing on two lane road. Cause was determined to be wrong logic in PCM for cylinder deactivation. This worng logic caused low oil pressure in the lifter during deactivation which in turn caused the rocker arm to become dislodged rendering the associated valve inoperable. There is no indication to the driver of if or when this happens. The driver is then driving the car in a very dangerous state. The problem arises when the the rpms become elevated to around 5000 rpms and above. At this point the computer senses trouble with that cylinder due to the air fuel ratio not being correct and throws the engine into limp mode. Creating a very dangerous situation if you are trying to pass or avoid something where you need the accleration. Extremely dangerous!! when I took my vehicle into my dealership they discovered the misfire on cylinder #4 and Mazda had them remove the valve cover and inspect. Upon inspection they found a rocker arm had fallen off. According to Mazda my car was the 19th that they had seen with this problem. My car was in the shop in Oct. Of 2018. By the time my car was out of the shop that number had increased to 26. Mazda said the source of the problem was the wrong PCM programing. They stated they have 2 suppliers of pcms and one of their suppliers was using the wrong program. To fix my car they replaced the engine and reflashed the PCM to the correct program. I asked the dealership if they were going to reflash all of the vehicles on their lot that have this engine and they said they did not have permission from Mazda to do this. I feel they should have done that because Mazda admittedly does not know which cars have the wrong program and a simple reflash of all new vehicls would fix this situation. The number of these bad vehicles is increasng and many peple could be in danger. Mazda should recall asap

- Hermiston, OR, USA

2018 Mazda Cx-5 when I check the oil it is extremely over full and strong odor of gas when the dipstick is pulled out to be wiped off. It is like 4 inches above the max mark/ oil is very thin. This is an excessive amounts of gas in there.I warm up my car before leaving and drive it regularly everyday. This is very bad I read that gas is not a lubricant and washes the oil out of where it needs to be lubricating engine. It continues to happen. Checked manual to make sure I am checking it correctly. Says to get to operating temp. Wait 5 min to let oil settle back into engine then check it. I contact Mazda corps again, they have me take car to vallejo to inspect it with their regional technical specialist, then leave it there for repairs. During this inspection we discover oil leaking from the rear main seal. Their specialist confirms where it is leaking. I leave my car 5 days. Then they call me to pick it up to take it to hansel Mazda in santa rosa. Before I drop it off for repairs I have the oil changed at hansel Mazda. Then a few days later I check the oil, again it is extremely over full with strong odor of gas. I take it to hansel Mazda to have it checked to confirm that this is happening and make app to have the oil leak that was confirmed by Mazda's specialist and this problem of gas getting into the oil fixed. I check oil before dropping it off at hansel, it is way over full and very thin. Drop it off, they keep it for 5 day too then say there is no oil leak and nothing wrong with my car. They said they did anything to my car except inspect it. It is running different. I check oil next day it is very thick and very low at the minimum mark on dipstick. The oil has never read this low on the dipstick hansel Mazda must have taken a lot of oil out to counter for all the excessive amounts of gas getting there and added something to try to seal the leak. They lie

- Sebastopol, CA, USA

1509 miles on my new Mazda cx 5 purchased at marin Mazda in san rafael ca. On May 22, 2018 this vehicle keeps having some kind of what feels like a wheel resistance issue. Not sure if it is something happening in the drive train or transmission. Also not sure if it has anything to do with the way the vehicle starts everyday - this car over revs itself when started first thing ticking very loudly, rattling, pinging all kinds of different noises. It is ticking so loudly because it is over revving itself and there is no oil throughout the engine yet. Even after it stops over revving after a few minutes the car continues to have excessive engine noise the service advisor at marin Mazda insists that this is normal for Mazda's to sound like this & is ok. I don't believe him. This kind of start up everyday is going to cause problems in this engine quickly and premature failure of this cars engine. Mazda dealers are concealing some defect that is causing this car to start like this. This is something that should have been disclosed to the customers before they sell this car. Because it did not sound like this when I test drove it. That is because they take you inside while the car is warmed up so you can't hear it. That is concealing this major issue from the consumer. This is Mazda's standards of doing business. Concealing known defects of their vehicles then when a customer brings the vehicle in for repair they tell them it is operating as it was intended to by the manufacture. If this is correct then these things should have been printed on the window sticker on the car not concealed and not mentioned to the customers. This is very deceptive for Mazda, it's dealers and representatives to hide and lie about the merchantability condition of this vehicle. Because nobody wants to buy a brand new car that sounds like a rattle trap ghetto sled when it is started everyday.

- Sebastopol, CA, USA

June 4 2018 my brand new 2018 Mazda cx 5 that I bought from marin Mazda in san rafael ca driving on freeway at approximately 68 mph my car suddenly is slowing down- like self braking on its own- I was not braking- this was happing while I was accelerating -it felt like I was towing a large tractor - this resistance keeps recurring causing safety concern as well as bad gas mileage- while this issue is happening I get between 15 -17 miles per gal. - took pictures of fuel monitoring system. Having to make my way to the nearest exit with cars honking at me was dangerous. Car had 350 miles on it. Took car back to marin Mazda a couple days later for this issue and because it is very loud with excessive engine noise when started everyday. Very concerning as to it being a new car. Dealer said that's just how Mazda's sound it's ok we didn't notice anything out of the ordinary. Your car is fine. The wheel resistance you are feeling is probably because they spray stuff on the car to prevent rust before they ship vehicle, that coating just needs to burn off. So you need to drive it to burn it off. Your car is operating the way it was intended to. Really - this is not how any new car sounds or drives. I have a passenger with me at this time he also stated this was not a normal condition for any vehicle that is operating properly.

- Sebastopol, CA, USA

Takata recall. I purchased a brand new Mazda Cx-5 sport from a Mazda dealership on 6/4/2018. On 7/31/ 2018 the check engine light came on so I took it back to the dealership with only 2,357 on the odometer. My Cx-5 was in the shop from 7/31/ 2018 until 8/10/ 2018, during the first car repair attempt, heritage Mazda towson replaced the oil pump strainer, during the second repair attempt, the dealership replaced the oil pressure switch. On 10/10/2018, the check engine light came on while I was traveling to Virginia beach. So, I took my car to the Mazda dealership there in Virginia beach to have my car serviced. The very next day, I was informed by the service consultant that my Mazda Cx-5 had a defective oil pressure switch and that a replacement part had been ordered. On 10/12/2018, when I returned to the Mazda dealership, I was informed by the service manager, that my Mazda Cx-5 needed a replacement engine with only 5,796 miles on the odometer. My car has been out of service for 32 days collectively.

- Pikesville, MD, USA

Attempt to stop at light. Brakes were engaged fully engine kept revving up. Car kept going forward. In motion in city street. Straight and braking. Car has 496 miles.

- North Clarendon, VT, USA

Car burst into flames while driving on highway, unknown cause, suspect electrical or fuel system related

- Boylston, MA, USA

Engine makes loud noises after driving and acts like it's exhausted. This always happens when park the car and get out of it. There is a slight burning smell (which I was told would wear off after the first couple hundred miles), but it's still doing this. It's like the engine over heated (which no indicator) and it needs to cool off. The smell is the most concerning part.

- St. Louis, MO, USA