Most common 2000 Mazda Millenia problems
Share of the 19 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Mazda Millenia complaints by model year
Best Millenia years: 1996, 1997, 2000. Years to avoid: 1995, 1998. Compare all years →
What 2000 Mazda Millenia owners say
Engine & cooling
I own a 2000 Mazda Millenia s model. My Millenia has the lysholm supercharger (s/c). Recently, the car has begun to blow blue smoke out the exhaust pipe at startup. The smoke at startup last for about 15-30 seconds. I took the car into the local Mazda dealer. The Mazda mechanic removed the front intercooler and front intercooler pipe. The mechanic said there was oil in the intercooler and the intercooler pipe. He said this indicates the lysholm s/c is leaking. He said the lysholm s/c has a bad seal. Yet, he said he has never taken a lysholm s/c apart and does not know which seal is leaking. He said Mazda just replaces the entire lysholm s/c. A new lysholm s/c is approx. $7000 cad. My car has the 5 yr /100,000km (62,500 miles)power train warranty. The power train warranty states it covers "..all internal parts"...and "..all gaskets and seals..". …
The ignition coils in my car are going bad. One right after the other. Mazda told me that the heat of the engine (miller cycle) is causing this. I think the engine was poorly designed. There are 6 coils & I have replaced 3 so far, 1 in 12/04 & 2 in 4/06 along with all the plugs. This problem started in 2002 when cylinder #4 was misfiring. Mazda replaced the spark plug. The coil in cylinder #4 was the first coil to go bad. The original plugs were champion. I was told these were the wrong plugs especially for this type of high performance engine. Mazda said to expect to replace the other 3 coils. & then what? Do we start over again? My car only has 32,000 miles on it. Both catalytic converters have been replaced. I think Mazda should do something to correct the design of this engine to allow the coils more air.
Electrical system
I purchased a 2000 Millenia Millenia model that only has 39,000 miles on it. In October, 2003 my car mis-fired and the check engine light came on. The diagnosis was that the ignition coil for cylinder #2 was bad and needed replacing. At that time, Mazda customer service paid for the part and I paid for the labor. A few days ago (six months later), an identical situation occurred and the diagnosis was that the ignition coil for cylinder # 6 was bad and needed replacing. The dealership called Mazda inquiring about restitution, but this time, the company paid for nothing. I am very concerned about two things. First, what is the defect in my vehicle to precipitate the failure of two ignition coils in close succession? Is this an engineering defect? Further, am I going to have to go through this process for all 6 cylinders of my car engine? …
Before our factory warranty was up the dealership fixed our catalytic converter 3 times. After our extended warranty was up we in the last 6 months had to fix both upper camber arms, driver side axel, tire rod ends on both sides, driver side wheel bearings, and now just yesterday we broke down. The belt pulley tensioner went. The Mazda parts co. Had told me that they had this part in stock about 10 minutes ago but sold it. This is a $300.00 part and the maintnence is about $500.00 to have them fix it. I don't understand why there hasn't been any recalls on this vehicle. The trade in value isn't even what we owe on the car. We still have 2 1/2 years of payments. The car was burning something but there was no fire. It was the belt falling off while I was driving.
Fuel & propulsion system
I was pulling into a parking spot in front of the grocery store, when the car started to rev up the engine and drive at speed hitting a supporting column in front of the store. The car jumped the cement block and front was on sidewalk. Passenger side front fender, wheel, smashed. Accelerator stuck.
Fuel cuts out to engine at 2000-2500 RPM. Results in severe bucking and no capability to accelerate, creating a very dangerous condition. Has occured at different speeds from 20 to 50 MPH. Condition then persists at any speed but clears itself when restarting engine. Has happened 3 times at intervals up to 4000 miles. Dealer has verified the fault but is unable to recreate or further diagnose. Attempts at repair have been guesses. Concerned about the reliable safety of the vehicle.
2000 Mazda Millenia engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 2.3L 6-cyl supercharged | 4-speed automatic | FWD | 17 / 25 / 20 |
| 2.5L 6-cyl | 4-speed automatic | FWD | 17 / 24 / 20 |
EPA ratings. Class: Compact car.
Frequently asked questions
Is the 2000 Mazda Millenia a good car?
Based on 19 owner complaints filed with NHTSA, the 2000 Millenia rates average: 23% fewer complaints than a typical year of the Millenia at the same age. It is one of the best Millenia years by this measure. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2000 Mazda Millenia?
The engine & cooling — 7 complaints, 37% of all complaints for this model year, most often about engine › gasoline. Next are the electrical system (5) and fuel & propulsion system (3).
How many recalls does the 2000 Mazda Millenia have?
NHTSA lists no recalls for the 2000 Mazda Millenia. You can still confirm with your VIN using our VIN recall check.
What are the best and worst years of the Mazda Millenia?
The best years by complaints, compared at the same age, are 1996, 1997 and 2000. Years to avoid or approach with caution: 1995 and 1998. See the full Mazda Millenia years comparison.
At what mileage do 2000 Mazda Millenia problems happen?
The median mileage reported in complaints is about 39,000 miles; 60% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.