1999 Mazda Millenia Engine cooling Problems
- Complaints
- 5about this part
- Share
- 19%of 27 total for the year
- Median mileage
- 42,256miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the engine cooling of the 1999 Mazda Millenia, 19% of the 27 complaints for this model year. Where a mileage was given, the median is 42,256 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I currently own a 1999 madza Millenia, which I purchased pre-owned, in 2002. I have had nothing but problems and extremely expensive repair bills since that time. The car breaks down/is in need of repair every 3-4 months, and it is always the same major problem with 2-5 new things needing to be repaired as well. My latest repair bill, (2) weeks ago, was to the tune of $1280. 80. The check engine came on in october 2003 and has not went off since that time. …”
NHTSA complaint #10168597, filed 2006-09, 3,300 miles“Check engine light came on. Vehicle had only 50,551 miles (1999 Mazda Millenia). Dealer said vehicle needed a new transmission-$3175, oxygen sensor$345, cam position sensor and o ring-$850. Vehicle mileage warranty ended at 50,000 miles. Dealer refused to extend warranty for repair.”
NHTSA complaint #10051288, filed 2003-12, 50,511 miles“Check engine light contiues to come on. Brought to dealer on 5 occassions and problem never properly identified. Engine blew piston rod after 34k miles”
NHTSA complaint #10045494, filed 2003-11, 34,000 milesRelated service bulletins
- 10200933Aug 24, 2021This service bulletin provides testing and charging procedures in order to promote proper battery maintenance, to deliver new vehicles with fully charged batteries, and to reduce…
- 10153311Jan 9, 2019On some vehicles, a sulfur smell or 'rotten egg' odor may be noticed coming from the exhaust system. The odor is usually noticed after a cold start, fast idle, extended periods…
- 10145242Sep 6, 2018On some vehicles, a sulfur smell or 'rotten egg' odor may be noticed coming from the exhaust system. The odor is usually noticed after a cold start, fast idle, extended periods…
- 10213331Feb 15, 2016Sulfur smell from exhaust system.
Engine cooling: other model years
Other parts of the 1999 Mazda Millenia
5 complaintsTires
5 complaintsTransmission and drivetrain
5 complaintsOther or unknown
3 complaintsAir bags
2 complaintsBrakes
2 complaintsBody and structure
2 complaintsVehicle speed control
2 complaintsEquipment
1 complaintsLatches, locks and linkages
1 complaintsWheels
1 complaints
← All problems reported for the 1999 Mazda Millenia
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology