2016 Mazda CX-5 Engine problems

The contact owns a 2016 Mazda CX-5. The contact stated that the engine light illuminated. The vehicle was taken to an independent mechanic diagnosed with a sensor failure and needing to replace a catalytic converter. The oxygen sensors were repalced.r was replaced by an independent mechanic. The vehicle stalled while reversing. The manufacturer was not notified of the issue. The approximate failure mileage was 131,860.

My wife was driving our 2016 Mazda CX-5, and was getting ready to pull into our daughters' driveway. My wife slowed down to a stop before entering the driveway. She gave the vehicle some gas to move forward. She stated that there was a pause, then the vehicle accelerated forward slamming into the garage door and the corner of the garage/house. There was also a Tesla parked inside the garage that was knocked back about a foot and a half. The distance from the edge of driveway and street to the garage door is about...

Vehicle was taken to an authorized Mazda dealership for 60,000-mile service; coolant system drained and refilled. Immediately after service, check engine light illuminated (P011A - engine coolant temperature sensor correlation issue). Dealership retained vehicle, drove ~300 miles, performed a second coolant flush; issue persisted. Dealer determined heater core clogged, attributed to coolant contamination/corrosion introduced during service. Another CX-5 at the same dealership experienced the same issue. Safety...

The vehicle's air conditioner expansion valve is defective/malfunctioning. While driving the vehicle with the air conditioning operating a loud whooting noise fills the interior of the vehicle. The noise sounds like the siren/hooting sound the police make when they want you to pull over or get out of their way. But the sound is loud and comes from inside the car jarring the driver and passengers. I purchased the car in early 2017 new. I first noticed the AC issue in the summer of 2018. I brought it up to...

The contact owns a 2016 Mazda CX-5. The contact stated that while driving 60 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal. No warning light was illuminated. In addition, there was an abnormal rattling sound coming from the engine. The contact pulled over to the side of the road before the vehicle stalled. The vehicle failed to restart. The vehicle was towed to an independent mechanic who determined that the engine had failed due to a lack of maintenance. The contact...

Keyless entry stopped working, key fob battery replaced as well as car battery. Coolant issues. Heater core and sensors

The engine light constantly appears along with the "Schedule Maintenance Soon" light. Taken to dealership many times within my 3 month warranty and no definite reason was given.The vehicle rides very bumpy though sway bar was inspected and supposedly repaired by dealership during my 3 month warranty.

Water pump failed causing coolant leaked into engine causing major engine damage

The car engine is eating oil. There were no warning lights on the dash to indicate this. i happened to check the oil and it was 3 quarts low. This could have caused the engine to malfunction while driving if not caught in time. This started around 70K miles. Coffmans Service Center in Warminster, Pa has confirmed the car was spraying oil on [[redacted]] and performed a clean combustion chamber with iridium spark plugs, replaced intake manifold gaskets and PCV valve, and Ow-20 oil and new filter. I contacted the...

I was driving on a city street and slowed to turn right onto a driveway at at a private residence. As my car entered the driveway and near the end of the right turn, my car had a sudden unintended uncontrolled acceleration, continued the turn, went over a low hedge of shrubs on the right side of the driveway, continued down a short rocky incline, and landed on a large rock where the car stopped.

The car engine is eating oil. There were no warning lights on the dash to indicate this. I happened to check the oil, and it was 3 quarts low. This could have caused the engine to malfunction while driving if not caught in time. This started around 70K miles. Coffmans Service in Warminster, PA has confirmed the car was spraying oil on [[redacted]] and performed a clean combustion chamber with iridium spark plugs, replaced intake manifold gaskets and PCV valve, and ow-20 oil and new filter. I contacted the...

Catastrophic engine failure. Needs a total engine replacement, regular oil changes. We went to get the oil changed within 1,000 miles of the suggested mileage range and it was "out of oil". The dealership told us we needed a new engine. It hasn't been driven and sounds like a helicopter when turned on. We have had regular maintenance on the vehicle, one owner. It started acting up and was trying to stall out on the highway. Then seized up and wouldn't go over 10mph. It's totaled and we feel strongly that this is an extension of the current lawsuit covering many years of Mazda models.

My daughter was driving her 2016 CX5 when the coolant temperature warning message displayed on the instrument panel, advising her to pull over immediately. She had just driven on to the expressway, but luckily was still in the right lane and was able to pull over safely. If she had been in any other lane of the busy highway when this occurred it could have been a serious safety issue for my daughter and the other drivers on the highway. I contacted AAA to tow the car to my local mechanic. The service tech reported...

Bolt from inside engine blew out, putting hole in engine block

Car was having trouble with pickup and was making a subtle recurrent noise. Sped up after turning a corner and engine just sputtered out and car came to a complete stop within seconds. The engine light never came on and the engine did not overheat. Car would not turnover to start after that. Car was towed to an independent garage where they stated engine failure. Was then towed to a garage that can handle engine issues where it was declared a total loss and catastrophic engine failure.

Changed my oil and the next day the engine blew, maintained exactly how the manufacturer suggests, but somehow the engine blew.

First symptom, no heat coming out of heater vent took to shop to investigate and found antifreeze in the oil . Cylinder head removed and found a nonreparable crack In the cylinder head. I'll maintenance up todaye, Engine never overheated ,no symptoms, just suddenly Blowing cold air from the heat vent. $7300 estimate 2 fix.

The check engine light came on when I was in my way home. This morning when I started my car, the engine reved on its own and then it went to 0. This is super dangerous. The car could have stopped in the middle of the freeway. I had my car towed to a local mechanic. The error code that came up was p0192. Looks like there is a recall for the fuel pump issue for many mazda, yet mine isn't part of it.

Car: 2018 Mazda CX-5 Touring with approximately 39,000 miles. Issue: Burning smell coming from engine compartment- Oil leaking from engine. Problem: Cracked cylinder head as diagnosed by dealer and to be replaced under Mazda Power Train Warranty. Safety was a concern not knowing the issue. Concerned of engine failure, fire, and overall safety. Warnings: No warnings or check engine light was also concerning. Time frame: 10/1/22 evening- noticed slight burning smell which lasted only a few minutes. No evidence...

While driving to the airport suddenly all dashboard lights came on and engine "died" during the drive about 50mph. My wife who was driving, was lucky not to get into a crash and steered the car to the side to a full stop . The tow truck driver tried to restart the engine w/o success. The garage determined it is a catastrophic engine failure and need to be replaced. About 2 weeks prior we had an engine warning light. The car was taken to our regular serviced garage and was inspected w/o any issues and light was reset. All routing maintenance has been performed by same garage. There are similar reports on the web about total engine failure of Mazda CX5 during driving!!!

I own a 2016 Mazda CX-5 Touring with AWD. I purchased it brand new from a dealer--no miles on it. It's been a great car until this Sudden Unintended Acceleration problem (about 60K miles now). It's happened 5 or 6 times--twice when in a drive thru. It seems that if I am idling (not pressing on gas or brake) the car will sometimes suddenly accelerate. I have used suggestions to brake, then place car in neutral. That seemed to resolve the problem. However, recently I pulled up to my (rural) mailbox and the...

The contact owns a 2016 Mazda CX-5. The contact stated that upon depression of the brake pedal, the engine revved violently without warning. The contact would depress the brake pedal to the floorboard and place the vehicle into park(P) to prevent the vehicle from independently accelerating. The contact had taken the vehicle to a dealer and was informed that the air box was defective. The dealer repaired the vehicle; however, the failure recurred. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 50,000.

My problem is with the keyless start system. The problem is that if I forget to push the start button to shut down the vehicle and open the door and leave the automobile and shut the door with the key in my possession the auto will keep running until it runs out of fuel. Wouldn't it make more sense for the vehicle to shut down after 3 minutes if the key is not present. As you know people have died from carbon monoxide poisoning by parking in their garage and forgetting to shut down the vehicle and the vehicle...

Original belt tensioner was failing at 50k miles. An oem mazda belt tensioner was installed and is failing again within 1 year at 67k miles. If this fails the belt powering the water pump will fail causing a catastrophic engine failure due to overheating. Mazda has yet to issue a recall with their defective parts. If you hear any squeaking of the belts from your engine and notice any residue leaking from the tensioner get it replaced ASAP or your car could become a hazard.

Dealer identified drive belt tensioner as leaking and in need of replacement on a Mazda CX-5 with less than 30k miles on it. Many owners have reported identical failures at or around 30k. An insufficient part that is failing so frequently, this early on with low mileage is a significant safety issue.