2018 Model Year

Mazda Mazda6

NHTSA Complaints & Reliability Data

Compare
Complaints
50
Recalls
0
Crashes
1
Severe
3

Recent Complaints

Latest owner reports

POWER TRAIN,ENGINE
Jul 2026

I recently discovered a significant oil leak near the exhaust manifold of my 2018 Mazda 6 (2.5L NA), which has resulted in visible smoke and a burning...

Engine
Feb 2026

Per Mazda inspection, the back side of cylinder head #3 has an oil leak which is leaking onto the exhaust manifold. This creates a direct fire hazard...

Engine
Oct 2025

Cracked cylinder head causing oil leak and possible coolant leak. This is a known issue with this year and model. Mazda is trying to suggest the issue...

Power Train
Sep 2025

Was driving then car suddenly shut down and all panel lights turned on. The car would not start after an hour it started but was Perkins when driving....

Engine
Sep 2025

Bought used with 47k miles. Two weeks later, took it to my mechanic for an inspection, they found a massive oil leak on the back of the motor. Took it...

UNKNOWN OR OTHER,ENGINE
Aug 2025

Coolant leaks at the cylinder head around the exhaust manifold causing my car to over heat. Also when my thermostat is set to the exact temperature fo...

Brakes
Jun 2025

I am having my brake pads changed at a local mechanic and when changing the pads, the mechanic was unable to change them because the rotors and calipe...

Brakes
May 2025

Premature caliper failure on front and rear. Ruined rotors at 40k miles, confirmed caliper failure by two service shops. Grinding/squeaking sounds int...

Fuel System
May 2025

The contact owns a 2018 Mazda Mazda6. The contact stated upon taken the vehicle to the dealer for an oil change, the dealer notified the contact of a...

Engine
Apr 2025

Driving in traffic and the engine temperature warning appeared on dash. Dealer has confirmed there is a large coolant leak from the cylinder head. Maz...

VS

Vehicle Safety Research Team

Automotive Data Analysts

Independent researchers analyzing NHTSA data to help consumers make informed vehicle decisions.

Data updated: March 5, 2026

Summary

The 2018 Mazda Mazda6 has 50 complaints and 0 recalls on record. The most commonly reported issue is Engine. 1 crash-related incidents have been reported.

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