Most common 2003 Mazda Protege problems
Share of the 120 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Mazda Protege complaints by model year
Best Protege years: 1998, 2001, 1997. Years to avoid: 1995. Compare all years →
What 2003 Mazda Protege owners say
Engine & cooling all 40 →
Tl* the contact owns a 2003 Mazda Protege. The contact stated while driving 50 MPH, the vehicle stalled with the check engine warning light illuminated. The vehicle was towed to an independent mechanic to be diagnosed. The contact was informed that the engine and timing belt needed to be replaced. The engine was taken apart and the mechanic found a screw inside of the intake valve. The vehicle was not repaired. An unknown dealer was contacted and informed of the failure. The manufacturer was notified of the failure. The approximate failure mileage was 188,000.
Rough idle causing to stall while driving, check engine light on for cylinder misfire, found cylinder 4 with a bent spark plug with the gap closed. Replaced all 4 plugs car ran fine for a few months only to have the same issue cylinder misfire with cylinder 4 with another bent plug gap closed. Possible something loose inside cylinder 4 causing the misfire issues to the plug. Mileage 130,280
Seat belts
I was pulling up to my residence when the seat belt popped out of the receiver by itself.. I tried to re-latch the seat belt and it would not latch. I attempted a few more times and the seat belt receiver completely fell apart..
Tl contact owns a 2003 Mazda Protege 5. Whenever the contact attempted to use the driver side front seat belt she noticed that the seat belt buckle would not connect with the base latch. The contact noticed that prior to the failure the latch became very difficult close. The latch mechanism was replaced by a local mechanic. The current and failure mileages were 89500. Updated 01/05/10. Updated 01/05/10.
Transmission & drivetrain
The 2003-2003.5 mazdaspeed Protege poorly designed limited-slip differential has seen a failure rate of over 125 documented cases online. When this part fails, the vehicle does not respond to acceleration causing a safety issue at highway speeds and residential speeds. When this part fails, it could cause the vehicle and passengers to be at risk for roadside rear end crashes due to loss of power especially if the driver is changing lanes at highway speed. This issue has been a widespread problem for this particular model and Mazda USA has denied any responsibility for issuing a recall. 2003-2003.5 mazdaspeed Protege owners have had the limited slip differential replaced only to find the issue re-appear and fail again. Here is a link to the documented list of owners who have had this fail. (http://www.msprotege.com/forum/showthread.php?t=64821&page=29). …
Clutch apparently failed to engage transmission after being driven 15 miles to work with no apparent symptoms that it was going to fail. Vehicle has previously had a motor mount break that was covered under the terms of the warranty. I believe the motor mount failure caused a misalignment of the drive train which resulted in the premature failure of the clutch. Mazda has refused to cover the clutch as a warranty repair even though they did the motor mount repair. At the time the motor mount failed the motor or transmission was making an awful racket. The clutch sounded like it was under an awful strain!
2003 Mazda Protege engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 2.0L 4-cyl | 4-speed automatic | FWD | 22 / 28 / 24 |
| 2.0L 4-cyl | 5-speed manual | FWD | 22 / 28 / 24 |
EPA ratings. Class: Compact car.
Frequently asked questions
Is the 2003 Mazda Protege a good car?
Based on 120 owner complaints filed with NHTSA, the 2003 Protege rates average: 1.3× as many complaints as a typical year of the Protege at the same age. 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 2003 Mazda Protege?
The engine & cooling — 40 complaints, 33% of all complaints for this model year, most often about engine. Next are the seat belts (17) and transmission & drivetrain (12).
How many recalls does the 2003 Mazda Protege have?
NHTSA lists no recalls for the 2003 Mazda Protege. You can still confirm with your VIN using our VIN recall check.
What are the best and worst years of the Mazda Protege?
The best years by complaints, compared at the same age, are 1998, 2001 and 1997. Years to avoid or approach with caution: 1995. See the full Mazda Protege years comparison.
At what mileage do 2003 Mazda Protege problems happen?
The median mileage reported in complaints is about 67,000 miles; 39% 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.