2019 Mazda CX-5 engine problems

Related recalls

• Recall 19V497000Jun 27, 2019262,220 vehicles
  ENGINE · POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

  Mazda North American Operations (Mazda) is recalling certain 2018-2019 CX-5, Mazda6, and 2019 Mazda3 vehicles. A software error in the powertrain control module (PCM) may cause the engine to stall.

  Risk: An unexpected stall increases the risk of a crash.

  Remedy: Mazda will notify owners, and dealers will reprogram the PCM software, free of charge. The recall began August 20, 2019. Owners may contact Mazda customer service at 1-800-222-5500, option 4. Mazda's number for this recall is 3719F.

What owners say

1. Filed Sep 16, 2026OREngineTransmission & Drivetrain

   I purchased a used 2019 Mazda CX-5 in 2024, with 25,000 miles on it. In June of 2026 I started to have an oil leak. Took it to a mechanic's shop who diagnosed it as a valve cover gasket, ran the car for another 2 months, oil leak did not stop, got worse, to the point where my oil light came on where the oil was low enough, then I took it to another mechanic, they diagnosed it as some sort of pressure sensor that has to do with the oil, they replaced that, then that still…

   NHTSA complaint #11764827 · source
2. Filed Aug 28, 2026NJEngineFuel, Hybrid & EV Propulsion

   2019 Mazda CX-5 developed P0192-00 fuel-pressure-related fault and significant loss of acceleration/limp mode. Mazda dealership diagnosed fuel rail/injector-seal issue and performed approximately $2,836 in repairs. The condition was not corrected. Dealer now diagnoses a high-pressure fuel-pump failure and is requesting an additional $1,459. Vehicle has experienced loss of power while driving. There is an existing Mazda fuel-pump recall affecting some 2018–2019 CX-5 vehicles,…

   NHTSA complaint #11760472 · source
3. Filed Aug 26, 2026100,000 miMOTowedEngine

   The contact owns a 2019 Mazda CX-5. The contact stated that while driving at 55 MPH and turning into a driveway, smoke emerged from the engine compartment. The vehicle was turned off and inspected. Upon opening the hood, smoke was observed near the rear firewall of the engine compartment, and oil was leaking under the engine compartment. The source of the leak could not be identified initially, and the vehicle was towed to an independent mechanic, where a leaking cylinder…

   NHTSA complaint #11759696 · source
4. Filed Aug 7, 2026CAEngine

   This is a follow-up to my complaint 11754947, filed 8/5/2026 on the same vehicle. The defect has now been confirmed in writing by an authorized Mazda dealer. On 8/6/2026, San Francisco Mazda (repair order 1085786) diagnosed the cylinder head as the source of the engine oil leak on my 2019 CX-5 with the 2.5L naturally aspirated SkyActiv-G engine with cylinder deactivation, engine code PYUD. The dealer inspection report states: "CYLINDER HEAD LEAKING — FOUND THE CYLINDER TO BE…

   NHTSA complaint #11755382 · source
5. Filed Aug 5, 2026CAEngine

   My 2019 Mazda CX-5 with the 2.5L naturally aspirated SkyActiv-G engine with cylinder deactivation has developed a significant engine oil leak at the front of the engine, accompanied by a strong burning oil odor detectable both outside and inside the cabin. Mileage is approximately 50,000, averaging about 7,000 miles per year with all maintenance performed on schedule. The burning odor indicates engine oil is contacting hot exhaust components, creating a fire hazard. I have…

   NHTSA complaint #11754947 · source
6. Filed Jul 30, 2026CAEngine

   I own a 2019 Mazda CX-5 AWD equipped with the 2.5L naturally aspirated SKYACTIV-G engine with cylinder deactivation. At approximately 70,491 miles, the vehicle began leaking and burning engine oil, accompanied by a strong burning-oil odor and visible white smoke from the engine bay. This began on or around 7/15/2026 I took the vehicle to an authorized Mazda dealer, which confirmed that the cylinder head is cracked and leaking engine oil. I was quoted approximately $10,000 to…

   NHTSA complaint #11753878 · source
7. Filed Jul 21, 2026NEEngine

   The cylinder head has cracked and is leaking externally. The engine oil that is leaking out is leaking directly onto the hot exhaust manifold. This can place us as risk due to the engine oil getting ignited by the hot exhaust manifold. There were no warning lamps that came on but there was a smell of burning oil that all of a sudden came up through the vents. This vehicle is currently at Woodhouse Mazda in Bellevue, NE and they have confirmed that the leak is active and has…

   NHTSA complaint #11751895 · source
8. Filed Jul 8, 2026NJEngine

   I am the owner of a 2019 Mazda CX-5 with approximately 50,000 miles. I am experiencing an active engine oil leak accompanied by a burning smell and visible smoke from the engine compartment. This is consistent with a cracked cylinder head assembly — a known manufacturing defect in 2018–2021 Mazda CX-5 vehicles documented in Mazda's own Service Alert SA-031/21, which Mazda characterizes as a fire hazard. Despite this, Mazda has extended warranty coverage only to…

   NHTSA complaint #11749139 · source
9. Filed Jun 15, 2026CTEngine

   The engine has an oil leak from the head. It is a common problem with this year and make. It is a manufacturer's defect called a porous head where oil leaks through the casting not a seal. I've already spent $2000 to repair but still leaks. Oil leaks onto the exhaust and smokes causing fumes in the inside of the car and can be a fire hazard. Mazda is well aware of the problem but has yet to address it.

   NHTSA complaint #11744167 · source
10. Filed Jun 12, 2026CAEngine

    We began occasionally smelling an acrid smell, but didn't think much of it due to lack of visible leaks or warning lights. During a routine oil change at the mazda dealer, we asked about the smell, and the tech almost immediately found the issue, saying he had seen it a few times before. The oil is leaking from the head down onto the manifold due to what seems to be a recurring defective casting issue. quote from mazda dealer service department "During the vehicle's…

    NHTSA complaint #11743725 · source
11. Filed Jun 9, 2026CAEngine

    On May 11th I was driving my 2019 Mazda CX-5 with approximately 35,000 miles when my cabin filled with the smell of gasoline. The smell became overwhelming within minutes, causing concern for my safety and the safety of other drivers. I immediately drove to the closest auto repair/body shop for an emergency inspection. Upon inspection, the technicians discovered there was a "crack at rear cylinder head and leaking oil excessively. Oil is leaking on to hot exhaust…

    NHTSA complaint #11743039 · source
12. Filed Jun 9, 2026PAEngine

    Cylinder block cracked on back side of engine. This crack leaks oil onto the exhaust manifold. Condition Confirmed by Mazda dealer. Oil burns on the exhaust filling the cabin with smoke impairing the driver. Also a high risk of combustion in the engine compartment Inspection report and pictures available. No sign or warning of issue. Crack happened on a daily drive to work. No engine lights noise or smell until head suddenly cracked causing a large oil leak. Mazda has an…

    NHTSA complaint #11742857 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology