Mazda CX-5 Complaints (2018)

353 consumer complaints on file.

#11644882February 25, 2025
ENGINE
Replacement of cracked head cylinder diagnosis completed by Mazda dealer Fred beans in Willow Grove Pennsylvania Mazda is claiming they cannot cover the repair cost due to carfax not reporting all my maintenance services. After speaking to mazda customer service they confirmed that it is illegal to use carfax as documented proof. I provided proof of the maintenance aka oil change that was not eeported directly through carfax and have not heard anyrhing back. My car is under 60,000 miles and I have maintain my car and this should not be my fault this should not be my fault. Please help if possible i dont know who else to go to
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11644513February 24, 2025
ENGINE
There is a cracked cylinder head cover and the oil leaks from the crack onto the manifold causing smoke and burning smell. I have read several examples on Mazda forums [XXX] ; [XXX] ) of this happening with the Mazda CX-5. A former Mazda mechanic posted he would see a couple vehicles a week at his dealership that experienced this problem. The odor of the burning oil onto the manifold is overpowering when sitting in the car. Some people with the same problem have posted they actually had small fires / burning under the car. In May, 2021, Mazda issued a technical service bulletin TSB # SA-031-21 with a cylinder head redesign for 2018/2019 CX5 models. this is telling of their awareness of the problem. There were no dashboard warnings to indicate the problem - just the burning smell from oil and oil stains in the driveway which caused me to bring the car in. There is substantial evidence that this is a common problem with these model years and it is not related to the mileage of the vehicle - mine has only 37k miles on it. It should be noted that the cylinder head is aluminum and only 2mm thick vs 5-7mm on most vehicles. Mazda should be held accountable and issue a recall and/or extended warranty to address this problem. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11644638February 24, 2025
POWER TRAIN
Smelled smoke (burnt oil) for over a year. Dealer could not address. Finally found that the cylinder heads had cracked and required replacement at $7500. Car was only 51K miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11644142February 21, 2025
POWER TRAIN
I purchased my CX-5 from Mazda dealership when new. The vehicle has been having coolant issues where the Electronically controlled thermostatic valve (ECTV) will open prematurely at 120°F instead of at higher temperatures. This all leads to higher fuel consumption, premature wear and tear on the engine, higher water condensation in the engine oil, poor engine and cabin air performance. I had it diagnosed at the Mazda dealership where I bought it from (Previously it was Sussman Mazda of Abington, now Fred Beans Mazda of Abington in PA) and they said the values are admissible by Mazda and not indicative of a problem. However, my vehicle cannot reach normal operating temperature of 198°F when driven for 50 miles at ambient 28°F for over an hour due to premature opening of the ECTV at lower temperatures. There are no codes showing up relating to the issue, therefore the dealership declined any repair works to be done.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11642816February 14, 2025
ENGINE, FUEL/PROPULSION SYSTEM
Car has a ticking sound when in idle mode. My mechanic sent me a few videos to reference and a bulletin from Mazda that attributes the clicking to the Hydraulic Lash Adjuster
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11641750February 10, 2025
UNKNOWN OR OTHER
Infotainment screen experiencing “ghost touches”, meaning that safety features can randomly be selected, activated and de-activated, and distracting actions happen in the infotainment system while vehicles is in motion. This is a known issue in Mazdas, and a recall has been issued for 2014-2016 Mazdas to replace the infotainment system. However, this issue is also happening in later models, including the 2017 to 2020 Mazda CX-5. This issue has been diagnosed by the dealership (Roger Beasley Mazda in Georgetown) and the system throws an error, CMU DTC 1 - B108E04 (Display-System Internal Failure).
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11641472February 8, 2025
ENGINE
Cracked cylinder head at 65,0000 miles
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11641355February 7, 2025
ENGINE
We were driving and noticed some white smoke when we parked, so we took it to a mechanic and he diagnosed: “Found that only when engine gets up to operating temp that it begins to leak through hairline cracks in cylinder head. Oil leak is severe and recommend not driving and bringing to dealer for possible warranty verification.” He told us the issue is specifically on the driver side where there are hairline cracks on the backside, left quarter of the cylinder head.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11640734February 4, 2025
ENGINE
There is a known issue with 2018 Mazda CX 5 related to a cracked cylinder head. I have just under 60,000 miles and I noticed smoke coming from under the hood near the exhaust manifold and a strong odor of burning oil. Dolan Mazda in Reno, NV has confirmed I have a cracked cylinder head and it is the cause of the burning oil. I am concerned that oil leaking from the cracked cylinder head onto the exhaust is a fire hazard. I feel a recall should be issued.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639988January 31, 2025
ENGINE
During cold starts there is a loud ticking sound coming from the top side of the engine. It appears to be one or more HLA.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639995January 31, 2025
ENGINE, POWER TRAIN
We purchased our vehicle from Riley Mazda in September 2018. Shortly after reaching approximately 50,000 miles, we began to notice that the gauges would fluctuate, and there was a slight burning odor in the car cabin. We replaced the air filters for both the engine and cabin, as well as performed an engine oil change. In October, we had a brake flush done when we inquired about the burning smell coming from under the hood. Despite our concerns, the dealership was unable to identify any problems at that time. On a subsequent visit, we paid a diagnostic fee of $220.00. It was during this visit that the dealership discovered an issue with the engine. The newly identified problems will significantly impair the vehicle's performance and decrease its value. Additionally, we anticipate needing future repairs, which could pose serious safety hazards.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639761January 30, 2025
UNKNOWN OR OTHER
After online research, other people with Mazda vehicles have had the same problem and it’s called ghost touch. My screen controls go automatically without me touching any dials while I’m driving, which is extremely distracting and unsafe. I have tried to get it fixed by a few dealerships and they either put it off or say it’s not under warranty/recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639054January 28, 2025
ENGINE
Cracked cylinder head
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638286January 24, 2025
ENGINE
Cracked cylinder head causing oil to leak
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638121January 23, 2025
ENGINE
What component or system failed or malfunctioned, and is it available for inspection upon request? - Engine cylinder head was broken and caused oil leakage How was your safety or the safety of others put at risk? Oil leakage resulted in a smoky smell while driving and could have led to cars on the road or my own car could have skid leading to a fatal accident Has the problem been reproduced or confirmed by a dealer or independent service center? Yes. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Dealer has inspected. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear - No warning lamps but there was a smoky smell while driving & visible oil leak under the front hood.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11637839January 22, 2025
UNKNOWN OR OTHER
my Mazda CX-5 Grand Touring when the weather is hot, the car’s screen begins malfunctioning while I am driving. It changes screens and settings on its own, creating a highly distracting and dangerous situation while operating the vehicle. This issue has persisted for some time, and I am concerned about the safety risks it poses, not only to myself but also to others on the road.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11637065January 20, 2025
ENGINE
Cylinder head cracked at 46,000 miles causing smoke and oil leakage. This was the root of an almost $6,000 repair, leaving me without a vehicle for 15 days. This issue could also lead to more extensive engine problems in the future.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11636213January 16, 2025
ENGINE
My vehicle has been diagnosed with a cracked cylinder head. The problem began when the vehicle had less than 28,000 miles on it. Mazda is repairing it and has agreed to cover the repair under Mazda Customer Care Assistance.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11634884January 8, 2025
ENGINE
At approximately 57,000 miles, the cylinder head cracked. It was leaking oil and white smoke was coming out of the engine bay. There were no warning lights. I have since gotten the cylinder head replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11634747January 7, 2025
POWER TRAIN
Ticking sound coming from engine. Likely related to the hydraulic lash adjusters. Vehicle has had a recent oil change by a technician.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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