2023 Mazda CX-5 Engine Problems

Vehicle is a 2023 Mazda CX-5 Signature Turbo model that had a leaking hydraulic tensioner for the serpentine belt at 15,759 miles. Mazda technician cleaned the hydraulic tensioner, and less than 500 miles later the leak returned. This is common enough in the community to expand TSB’s on this part.

Engine light came on. Immediately brought to dealer. Always serviced at dealership. One previous occurance of illuminated light reading major engine malfunction. Pulled car to side of road, called dealership who advised turn off and back on. Didn't tell me about ALL the problems that Mazda was aware of. Now I'm told my new car with 22k miles has a blown engine. No notification from Mazda about a known problem. Asked when buying the car if there were any major problems with this car. Mazda apparently lies.

The Low Oil Warning Light comes on between oil changes. I think this is the 3-4th time. I will have to add 1 quart of oil to the car after 3000-4000 miles. I only have about 33,000 miles on this vehichle and do the oil changes myself. I checked for leaks at the oil filter and oil drain plug. No indication of oil leaking or I would see it on the floor of my garage. What component or system failed or malfunctioned, and is it available for inspection upon request? Engine using excessive amounts of oil. It could be available for inspection How was your safety or the safety of others put at risk? Has the problem been reproduced or confirmed by a dealer or independent service center? I plan to take it into the dealer for next oil change and report it. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? The Low Oil warning comes on

See attached document for complaint.

The contact owns a 2023 Mazda CX-5. The contact stated that while the temperature was 45 degrees or lower, the vehicle failed to start properly, and the engine failed to warm up properly. The coolant light was illuminated, and the engine temperature gauge failed to rise above COLD. The vehicle occasionally failed to start or while started and driving at various speeds, the vehicle stalled while and engine temperature failed to reach the normal operating temperature. The check engine light was illuminated. The contact would shift to SPORT Mode to prevent the cylinder activation from occurring and causing the vehicle to stall. The contact stated that the failure persisted, and the vehicle was hesitating while driving in temperatures of 50 degrees or less. Additionally, the key fob intermittently failed to unlock the vehicle. The contact stated that the vehicle failed to start and had to be towed. The contact stated that during the recent failure, the battery was disconnected, and the vehicle was towed to the dealer to be diagnosed. The contact stated that the key fob battery had been replaced 6 times; however, the failure persisted. The vehicle had not been diagnosed or repaired for the engine failure. The contact called another dealer, J. Allen Mazda (15150 Airport Rd, Gulfport, MS 39503); however, only an appointment to inspect the vehicle was made but the vehicle was not yet inspected. The manufacturer was made aware of the failure and a case was filed. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 4,000.

Mazda CX-5 Premium Between May and September this year, the MyMazda app has alerted me two times that the oil level was low. I manually checked and it was indeed low. The first time I brought it to a Firestone service center to have it checked and they verified that the level was down considerably to the bottom dot on the stick. They said to bring it to the dealer. I brought it to the dealer and they said they could not find any leaks and to come back in 1000 miles. I did that and they only checked the dipstick to make sure the level was fine and sent me on my way. The same exact thing happened again a week ago and I topped off the oil then made an appointment. The dealer said that I should not have done that and now they could not verify for themselves that the oil was in fact low. They disregarded the message that the MyMazda app sent me and did not care that I documented and took photos of the dipstick. They had to see it for themselves. They said to come back 1000 miles and not add oil if it is low. I said to the representative at the dealer that I had seen mentions about high oil consumption online and they stated it was only turbo models. I bought my car October 2022 and it has had this oil issue twice in 20,000 miles. That is scary and unacceptable.