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Mazda Mazda3 Problems – Watch out for the Failing Clutch & Throttle Body!

Mazda Mazda3 Problems – Watch out for the Failing Clutch & Throttle Body!

Clutch Mazda3 Problems

The main concern regarding the clutch system in the Mazda3 is the clutch failure and the overall powertrain clutch assembly setup. Issues with the clutch failure constantly plague various model years, especially in the 2010 Mazda3. 

Auto Repairs Are EXPENSIVE


The main concern of the clutch failing occurs at around 37,000 miles, with the typical repair cost coming to around $1,270 to replace the clutch or provide an entirely new clutch assembly. Owners state that the clutch replacement may repeatedly occur, with owners paying for two or more clutch assembly replacements in their Mazda3. 


Owners have also cited the clutch failing at a very early level, with premature failure occurring on the Mazda Mazda3 2010 model year. 

Clutch Function

The clutch plays a huge role in the Mazda3 car. However, it can make it difficult to shift gears in your manual transmission vehicle if this part malfunctions. The clutch system is responsible for engaging and disengaging the power to the transition. A few main parts comprise the clutch system: clutch master cylinder, clutch cover, clutch disc, release cylinder, release bearing, and the release fork.


When the car is going into Neutral, the engine does not transit to the transmission for extra power, allowing you to change gears easily. However, if the clutch master cylinder is damaged, it will be hard to shift gears in manual transmission. 


Furthermore, if the clutch and engine do not engage and disengage at the right time, it will be very hard to shift gears in manual transmission. In some severe cases, you will not be able to shift at all, making it impossible to drive.

  • Interior Accessories Mazda3 Problems

The top concerns regarding the Mazda3 problems in the interior accessories category is the dashboard melting, the seat bracket breaking, the stereo system not working, the Bluetooth malfunctioning, the charter sticking in the outlet, the dashboard cracking, or the stereo system having an internal failure. 


To fix the dashboard melting, owners need to pay around $140 to replace the dashboard at around 58,550 miles. Owners stated that there is a recall on the dashboard, and there is a gap between the central dashboard and the console. 


The other main concern regarding the Mazda3 problems in the interior accessories category is the seat bracket breaking, coming to around $740 to replace around 80,150 miles. 

  • Wheels and Hubs Mazda3 Problems 

The top concerns regarding the wheels and hubs Mazda3 problems involve the defective factory-installed tire valve stems and the tires not wearing down properly. The NHTSA also cited concerns regarding the wheels, tires, tire pressure monitoring systems, tire valves, tire sidewalls, and the wheel rims. 


The most common solution for fixing the defective tire valves is to replace the parts with proper safe tire sensors, have Mazda replace the defective valve stems, and replace both sensors at around $400 and occurring at nearly 65,000 miles. 


The second problem is that the tires are not wearing properly in the Mazda3 car, with the most common solution being to use adjustable rear camber arms for around $630 and occurring at nearly 50,000 miles. 

Importance of Car Tires

To understand why these Mazda3 problems can drastically affect your car, you need to know why your car tires are so important. 


First, your tires play an essential role in the safety of your car. If you have driven too long on your tires and they have broken down over time, you might be putting yourself and passengers at risk. Each tire supports a quarter of your vehicle’s weight, so even if one tire is compromised, it can quickly affect your vehicle.


The second important function of your tire is the efficiency of your car. The tires have to keep your car moving smoothly and cause you to waste a lot of money on fuel. When your tires are off and your tires are off-balance, it will be difficult for the tires to maintain consistent contact with the road. 


Lastly, getting maximum traction on your tires affects almost everything related to driving performance. Mainly, it ensures that you stay in control of your car even when you are in tough conditions and prevent tires out of balance. 

  • Body and Paint Mazda3 Problems 

The body and paint Mazda3 problems involve the paint cracking, the paint peeling, and the power trunk not working correctly. The NHTSA cited concerns regarding the car’s structural body, showing issues with the durability and the construction of the Mazda3. 


Luckily for owners, the body and paint problems are relatively cheap to repair, with the paint being superficial issues that just deal with the Mazda3 aesthetic. The main solution to peeling paint occurs at around 4,2000 miles, with owners rating that paint can peel off while you are washing the car, paint can scratch when you are driving through rough terrain, and owners need to buy touch-up paint to fix the Mazda3. 

  • Engine Mazda3 Problems

The top engine concerns from users regarding most common Mazda3 problems is the car revving high, the car accelerating while braking, the car choking after firing, the engine stalling and dying while driving, and the valve VVT system failing. The NHTSA cited concerns regarding the engine, vehicle speed control, and the engine cooling system. 


For owners to remedy the car revving high, they need to pay around $630 to replace the throttle body at an average of 111,000 miles.

Faulty Throttle Body Causes

To understand why you are experiencing the Mazda3 problems in your car, you need to know the most common causes of a faulty or damaged throttle body. 

Contaminants inside Housing

Dirt, grime, and debris can accumulate inside the engine’s housing unit, leading to a stop in transferring air and fuel into the engine to power the vehicle. As a result of this debris build-up, the mixture of air and fuel is contaminated and interrupted. The contamination unbalances in the air and fuel flow can lead to an uneven surface and coating of the throttle body walls. 

Electrical Concerns

Problems with electrical connections in your vehicle can cause a lack of information and data to be sent to the car’s internal computer, the engine control unit, and the powertrain control module. Like any electrical connection inside or outside of your car, problems with connections, like a lack of tight seals and frayed wires, can lead to a range of erratic signals. 

Vacuum Leaks

Vacuum leaks, either with the wires or the seals, can harm the air and fuel mixture flow. If the mixture of air and fuel becomes disrupted due to the throttle body pressure issues, incorrect fuel can be sent to the engine, leading to unburnt fuel being wasted. In addition, if the throttle stop is maladjusted, the throttle body plate may open and close at the incorrect time, leading to an incorrect amount of the air and fuel mixture to enter the engine. 

  • AC and Heater Mazda3 Problems

The AC and heater’s main concerns include the broken fresh air circulator, a loud noise occurring from the AC heater fan, and the water leaking on the passenger side when the AC is turned on in the Mazda3. 


The typical repair cost is $2,000 to replace the circulator actuator and clean out the fan area at around 52,000 miles to fix the air circulator actuator. The second most common issue is the loud noise from the AC heater fan, with owners needing to replace the blower motor at an average of 48,000 miles. 

  • Brakes Mazda3 Problems

The most common issues with the Mazda3 problems in the brake system are the ABS and DSC lights turning on and the caliper leaking brake fluid. The NHTSA cited various concerns regarding the service brakes, the electronic stability control, the hydraulic service brakes, the parking brake, and the traction control system. 

Brake Fluid Leak

To figure out the importance of this Mazda3 problem, you need to know the importance of brake fluid and the causes of the brake fluid leak in the Mazda vehicle. 


Brake fluid is a type of hydraulic fluid used in hydraulic brakes and clutch applications in your car. It is used in order to transfer force into pressure to create a high amount of braking force. Brake pressure pushes brake fluid down to your brakes and pushes the pads on the rotor to stop the vehicle on time. This brake fluid is the brake system’s life source and is commonly overlooked but a huge part of your vehicle. 


A mechanism in the car that can alert you to a brake fluid leak is the bleeder bolts, which are parts located on the brake calipers and allow brake fluid to flow out of the system. If you have had some work done on the brakes in your vehicle, it might be that one of the bleeder valves was left a little loose. In this case, you will need to tighten the valve to stop the fluid flow and prevent the brake fluid leak from growing. 


If you have a brake problem that includes a soft brake pedal, you might have a problem with the brake pressure causing a brake fluid leak. If you can’t build pressure with the brake pedal after several physical pumps on the pedal, then this is a sign of a serious brake fluid leak. It is even possible that one of your vehicle's brake lines has been punctured, or a fitting has failed. 

  • Transmission Mazda3 Problems

The top concerns regarding the transmission in the Mazda3 involve the car grinding and going into 2nd gear, the clutch failing, and the car jerking and grinding while driving. The typical repair cost comes to $1,000 to replace the clutch at around 45,000 miles to fix the car grinding. 

Transmission Function

The transmission in your car is in charge of making sure that the right amount of power goes directly to your wheels in order to drive the vehicle at a specific speed. The transmission works properly by shifting gears and putting the car in the right gear for the current conditions. 


In a manual car, the manual transmission is engaged by pushing the clutch to disconnect the engine and the transmission. When you adjust the gear shifter, it is able to move the car into a new gear, and then the process is repeated. Although these cars are rarer than automatic vehicles, they can still show signs of a bad transmission.


In automatic vehicles, the automatic transmission is the automatic gear shifter that does all of the work for you. When you use the automatic transmission, it has the torque converter sense any changes as you accelerate and shift into a higher gear. 

  • Steering Mazda3 Problems

The most common steering Mazda3 problems involve the power steering not working, the power steering whining during use, and the NHTSA was citing issues about the electric power-assist system. The typical repair cost comes to $850 to replace the power steering pump at around 89,000 miles to fix the power steering. 

  • Lights Mazda3 Problems

In the Mazda3, the lights and lighting system’s most common issues involve the condensation within the headlamp assembly and the NHTSA citing numerous concerns regarding the vehicle’s exterior lighting. To fix the headlamp condensation, the main fix is to replace the entire assembly at around $900 and an average of 69,000 miles. 


Noticing and fixing the common Mazda3 problems before they get any worse can help you make a smart decision on what make and model to buy and how to keep your vehicle running at a high-performing level for a long time! Recognizing the most severe Mazda3 issues helps you alert your mechanic to any concerning symptoms or signs that you see in your car, especially in the clutch system, interior accessories, and the wheel’s wheels and hubs.