9.5

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
970 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2021 Mazda CX-30 engine problems

engine problem

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2021 Mazda CX-30 Owner Comments (Page 2 of 3)

« Read the previous 20 complaints

problem #23

Sep 032022

CX-30

  • miles

A D V E R T I S E M E N T S

Identified low oil level with 5,500 miles on the odemeter. No leak detected. The car has been babied; no accidents or undercarriage damage.

- Seattle, WA, USA

problem #22

Aug 202022

CX-30

  • miles
Purchased this car on Saturday August 13th from a dealer. Last weekend on the 20th the low engine level warning came on. We checked the oil and it was at the lowest dot on the dipstick. We added one quart of oil. This car isn't even due for an oil change it shouldn't be losing any oil.

- Tampa, FL, USA

problem #21

Aug 212022

CX-30

  • miles
Losing/burning oil with no leaking - less than 8,000 miles. Mazda has issued a service bulletin on the issue but offers no actual repair solution. Could be dangerous if engine seizes while in operation.

- St Joseph, MO, USA

problem #20

Aug 172022

CX-30

  • miles

A D V E R T I S E M E N T S

engine oil low light coming on within 3000 miles of oil change

- Piedmont, SC, USA

problem #19

Aug 032022

CX-30

  • miles
Oil warning light came in at 5,500 miles. Dealer says they know the engine consumes oil.

- Aurora , CO, USA

problem #18

Aug 052022

CX-30

  • miles
Engine is consuming/burning oil. I have needed to add 1 qt of oil every 3-4k miles, since purchased new. Car now has 25,000 miles and I have added oil 6 times. Ive called the dealer(Classic Mazda in Mentor Ohio) and they insist this is normal and there is no issue with the engine. Yet, I read on the internet that this is a known problem.

- Painesville, OH, USA

problem #17

Apr 072022

CX-30

  • miles

A D V E R T I S E M E N T S

The car has been reporting low engine oil numerous times between oil changes.

- St Petersburg, FL, USA

problem #16

Jul 262022

CX-30

  • miles
I have just about 8800 miles on my Mazda CX-30 Turbo after a year and 5 months. Suddenly had my low oil engine light come on. I pulled over and the oil is barely on the tip of the oil stick. My last oil change, which was also my first, was completed at 4937 miles from the Mazda dealership.

- Piscataway, NJ, USA

problem #15

Apr 142022

CX-30

  • miles
Excessive oil consumption. I bought this vehicle new from a Mazda dealership, with factory warranty. The check engine oil light came on at approximately 6800 miles, 3750 miles after the first oil change. An additional quart of oil was added. I brought it back to Mazda to confirm no oil leaks, which they confirmed. They were made aware of the Mazda service bulletin for excessive oil consumption, which they acknowledged, but indicated they will monitor as there is no solution from the factory.

- Morristown, NJ, USA

problem #14

Jul 202022

CX-30

  • miles
low oil indicator keeps coming on at 3k miles and 8k miles. some times the oil is slightly low. The manual says to sop driving immediately, but that is not always possible.

- San Francisco, CA, USA

problem #13

Apr 012022

CX-30

  • miles

A D V E R T I S E M E N T S

My car is burning a quart of oil every 1500 miles. I have taken it to the dealer three times. They say that they know about the problem but don't have a fix. I am afraid that the engine could seize up during driving, causing a accident.

- Springfield, MO, USA

problem #12

Jun 202022

CX-30

  • miles
Driving home from work today I got a "low engine oil level" alert/warning. First time this has happened. I have approx. 15,500 miles on my vehicle and it was serviced on 3/22/22 (11,828 miles). That service included a full oil and filter change. I see it has been noted that there is an oil leak with this particular vehicle but Mazda has not been able to figure out what is causing it. Just wanted it to be reported

- Annapolis, MD, USA

problem #11

Jun 142022

CX-30

  • miles
Low engine oil light came on at 8990 miles. Bought vehicle brand new. Has occurred before with this same vehicle. Excessive oil consumption is a known issue with this make/model

- Buffalo, NY, USA

problem #10

Oct 272021

CX-30

  • miles
Low engine oil light came on at 4600 miles. Brand new vehicle. Excessive consumption of oil known issue with this make/model

- Buffalo, NY, USA

problem #9

May 282022

CX-30

  • miles
Low engine oil pressure light came on forcing me to stop driving the vehicle. Upon investigation, engine oil level was a full quart low of oil, despite no leaks and only having 8000 miles.

- Uxbridge, MA, USA

problem #8

Apr 302022

CX-30

  • miles
I have the 2.5 liter turbocharged engine in my CX-30. It currently has approximately 18,000 miles after a little over a year of ownership. So far I have had to put in 3 quarts of oil in that time. The engine/low oil indicator comes on about every 4,000 miles. When I check the oil, it shows that it is down a quart. I have taken it in for regular service (oil and filter, tire rotation) twice now, and have brought this to the attention of the service advisor who tells me that this is normal for turbo engines. I disagree with this assessment. I will bring it up again later this week when it goes in for its third service. No new car should consume oil at the rate this one does. I have also observed blue smoke from the exhaust on start-up. I owned another turbo Mazda model a few years ago that did not do this. I have found what appears to be a technical service bulletin from Mazda regarding all turbocharged 2021 models built prior to September 2021. (TSB-01-012-21) My greatest concern is that this will only become worse and end up causing major damage to the engine and/or make the car unsafe to drive.

- West Palm Beach, FL, USA

problem #7

May 162022

CX-30

  • miles
Low engine oil after 4630 miles!

- Bellflower, CA, USA

problem #6

Feb 042022

CX-30

  • 3,100 miles
The contact owns a 2021 Mazda CX-30. The contact stated that the low engine oil warning light was illuminated. The contact stated that the app used for alerting vehicle failure also notified the contact of the failure. The failure occurred twice. The dealer was contacted and informed her that it was a known issue however, there was no recall. The contact had not taken the vehicle to the dealer. The vehicle had not been diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage 3,100.

- Warwick, NY, USA

problem #5

Mar 162022

CX-30

  • miles
While driving, Low Engine Oil light illuminated. Vehicle has 9968 miles at time of incident and had one oil change at 5873 miles. So in the span of 4095 miles, engine had burned enough oil that none was showing on dipstick at time of incident. Vehicle was taken to dealership where it was confirmed that there were no leaks and the engine was consuming oil at a rapid rate. Mazda has issued a bulletin to dealerships concerning this issue, so the company is aware a problem exists with this engine. Had the oil level decreased to a low enough level, the engine could have feasibly failed, which could have resulted in a dangerous situation if it happened on the highway or in heavy traffic. Mazda currently has no fix and encourages that oil be added when necessary. Given the unpredictable frequency of the oil consumption, this does not feel like a safe solution, putting the onus entirely on the owner.

- Spokane, WA, USA

problem #4

Feb 072022

CX-30

  • miles
At about 3,605 miles, I received a low engine oil warning. The car is only 4 months old. When i took the car to the dealer, apparently there is a TSB that was issued in October 2021 about the problem. I bought the car in November was not advised of this issue. At this time, it appears at this time Mazda is unable to determine the root cause. It appears that I am to take the vehicle to the dealer every time I have this experience. I am worried about the potential impact and the lifespan of the engine.

- East Elmhurst, NY, USA

Read the next 3 complaints »

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