A Guide to the Engine Mount for the 2020-2024 Mazda 3
If you're noticing new or excessive vibrations in your Mazda 3, a failing engine mount could be the reason.
- The most common symptom of a bad engine mount is excessive vibration at idle.
- For 2019-2020 models, extreme vibration in very cold weather may be related to a TSB that requires an updated OEM part.
- Owner reviews strongly suggest using OEM mounts; budget aftermarket brands like Anchor have a reputation for poor fit and causing more vibration.
- A leaking, fluid-filled passenger-side mount is a definite sign that it needs to be replaced.
Is Your Mazda 3's Engine Mount Failing?
A worn-out engine mount will make itself known through a few key symptoms. While the 2020-2024 Mazda 3 is generally reliable, these mounts are wear-and-tear items that will eventually need to be replaced. Look out for these common signs:
- Increased Vibrations: This is the most common symptom. You might feel a persistent vibration through the steering wheel, floor, or seats, especially when the car is idling in Drive.
- Clunking or Banging Noises: Loud clunks or thuds from the engine bay when you accelerate, decelerate, or put the car in gear can point to a broken mount. This is the sound of the engine shifting and hitting other components. 🎬 Watch: How to identify common symptoms of failing motor mounts.
- Visible Engine Movement: If you open the hood, have a friend put the car in Drive with the brake held firmly, and lightly press the accelerator, you might see the engine move or rock excessively.
- Leaked Fluid: The main passenger-side mount on the Mazda 3 is hydraulic (fluid-filled). If you see dark, greasy fluid on or below the mount, it has failed and needs immediate replacement.
Known Issue: Cold Weather Vibration (2019-2020 Models)
Mazda issued a Technical Service Bulletin (TSB 01-020/19) for some 2019-2020 Mazda 3 vehicles that experience excessive body vibration when idling or driving in extremely cold temperatures (below -4°F / -20°C). This was caused by the original engine mount rubber hardening in the cold. Mazda released an updated part to fix this issue. If you only experience severe vibrations in extreme cold, make sure your replacement mount is the updated version.
🎬 See a demonstration of excessive Mazda engine vibration here.Choosing a Replacement: OEM vs. Aftermarket
When replacing your engine mount, you have two main choices: Original Equipment Manufacturer (OEM) or aftermarket. For the Mazda 3, the difference in quality can be significant.
- OEM Mounts: These are the same parts your car was built with. They are designed to provide the original smooth, quiet ride. Forum members and mechanics consistently recommend using OEM mounts for the best results and longest life, even though they cost more upfront.
- Aftermarket Mounts (Anchor): Aftermarket brands provide an alternative, but quality varies widely. Anchor is a budget-friendly option, but owner experiences are overwhelmingly negative. Common complaints include the use of harder rubber that actually increases cabin vibration, poor fitment, and a very short service life, with some failing in as little as 3,000-5,000 miles. While the initial price is low, the potential for a rough ride and the need for frequent replacement make it a poor value for most owners.
A Mechanic's Advice
For a component like an engine mount that directly impacts ride quality and has a history of issues with low-quality aftermarket versions, sticking with an OEM part is the recommended path. The extra cost is often justified by avoiding the vibrations and short lifespan associated with budget brands.
Engine Mount Replacement Cost for 2020-2024 Mazda 3
The total cost depends on the part you choose and who does the work. The passenger-side mount is the most common one to fail.
| Part Type | Estimated Part Cost |
|---|---|
| New OEM | $200 - $290 |
| New Aftermarket (Anchor) | $178.55 |
| Shop Labor | $75 - $110 |
| Total Professional Replacement (OEM Part) | $275 - $400 |
Frequently Asked Questions
Is it difficult to replace a Mazda 3 engine mount myself?
Replacing the passenger-side engine mount is a feasible DIY job for someone with basic mechanical skills and tools. It requires supporting the engine from below with a jack and a piece of wood, removing the coolant reservoir for access, and then unbolting the old mount and installing the new one. It can take between 1.5 to 3 hours.
🎬 Follow this step-by-step walkthrough for replacing your engine mounts.Do I need to replace all engine mounts at the same time?
It is not always necessary. You can replace only the one that has failed. However, all the mounts are the same age and have been under the same stress. If one has failed, the others may be nearing the end of their life as well. If you are paying for labor, it can be more cost-effective to replace them all at once.
Is there a recall for the 2020-2024 Mazda 3 engine mount?
No, there are no active safety recalls for engine mounts on the 2020-2024 Mazda 3 in the North American market. There was a recall for a mounting bolt on much older 2006-2007 models and a TSB for cold-weather vibration on 2019-2020 models, but no widespread recall for the 4th generation.
Why does my car vibrate more with a new aftermarket mount?
This is a common complaint with budget aftermarket mounts like Anchor. They often use a harder rubber compound than the OEM part. While this may be durable, it transmits more of the engine's natural vibrations into the car's frame, resulting in a rougher feel at idle than the original, even compared to a worn-out OEM mount.
Helpful Videos
Technical Specifications
OEM Part Numbers: BEPV-39-060A
The primary passenger-side mount is a hydraulic, fluid-filled design.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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