A Guide to Replacing Engine Mounts on Your 2015-2023 BMW M3
Stop the shaking and noise by understanding your M3's engine mounts before you buy a replacement.
- Failing mounts in an M3 cause significant vibration, loud clunking noises, and sloppy-feeling shifts.
- For this vehicle, it is critical to use OEM or OE-supplier (like Corteco) mounts to maintain ride quality.
- Value-oriented brands like Anchor and DEA are not recommended as they will likely increase vibration and fail quickly.
- Replacement is a moderately difficult job that takes 3-5 hours and requires supporting the engine.
Is Your M3's Ride Getting Rough? It Could Be the Engine Mounts
The engine mounts on your M3 are a critical wear item. They are made of rubber that breaks down over time due to heat and stress. For a high-performance car like the M3, aggressive driving can shorten their lifespan significantly from the typical 60,000-100,000 miles. When they fail, the connection between your engine and the car becomes loose, leading to a variety of problems.
Symptoms of Failing Engine Mounts
- Excessive Vibration: This is the most common sign. You might feel a new, strong vibration through the steering wheel, seats, or floor, especially when the car is idling.
- Impact Noises: Loud clunking, banging, or thudding sounds when you accelerate, brake, or shift gears. This is the sound of the engine moving too much and hitting other parts of the car.
- Visible Engine Movement: Open the hood and have a friend gently rev the engine while the car is in park with the brake on. If you see the engine rock or lurch excessively, the mounts are likely worn out.
- Sloppy or Rough Shifts: An engine that moves too much can throw off the alignment of the drivetrain, leading to clunky gear changes.
A Note on Recalls and Service Bulletins
While there have been recalls for the 2015-2017 M3 concerning driveshafts and subframe bolts, there are no specific recalls or Technical Service Bulletins (TSBs) from BMW or the NHTSA for engine mount failure. These parts are considered normal wear-and-tear items.
Choosing the Right Aftermarket Engine Mount for an M3
Not all aftermarket parts are created equal, and this is especially true for a BMW M3. Using the wrong mount can ruin the driving experience. Here’s a breakdown of your options.
Tier 1: OEM and OE-Supplier Brands
Examples: Genuine BMW, Corteco, Lemforder
For a car like the M3, this is the recommended choice for most owners. These mounts are designed to preserve the specific balance of performance and comfort that BMW engineered. Corteco is widely known to be the Original Equipment (OE) manufacturer for many BMW parts, and their mounts are often identical to the Genuine BMW part, sometimes with the BMW logo ground off. Choosing from this tier ensures you get the ride quality and durability you expect.
Tier 2: Performance Aftermarket Brands
Examples: Revshift, Powerflex, 034Motorsport
These mounts use stiffer polyurethane instead of soft rubber. The benefit is a significant reduction in engine movement, which can improve throttle response and shifting feel, especially on a tuned or tracked car. The major downside is a noticeable increase in Noise, Vibration, and Harshness (NVH) inside the cabin. These are for owners who prioritize track performance over daily comfort.
Tier 3: Standard Aftermarket Brands
Examples: Anchor, DEA
These brands produce affordable mounts for a wide range of vehicles. However, they are not recommended for a BMW M3. The rubber is often a harder, cheaper compound not designed for the M3's specific vibration frequencies or high torque output. Installing these will likely lead to harsh vibrations, poor ride quality, and a very short service life. While the price is low, they are not a suitable choice for this vehicle.
Pro Tip: Replace in Pairs
Your M3 has two main engine mounts. It is highly recommended to replace both at the same time. If one has failed, the other has been subjected to the same age and stress and is likely not far behind. Replacing only one can put extra strain on the new mount, causing it to fail prematurely.
Cost of Replacing BMW M3 Engine Mounts
| Part Type | Part Cost (Set of 2) | Shop Labor Cost | Total Estimated Cost |
|---|---|---|---|
| New OEM / OE Supplier | $300 - $500 | $450 - $900 | $750 - $1400 |
| New Aftermarket (Value) | $94 - $127 | $450 - $900 | $544 - $1027 |
Frequently Asked Questions
Can I replace just one engine mount?
You shouldn't. Engine mounts wear out together. Replacing only one failed mount puts a lot of stress on the new part and the remaining old one, leading to another failure sooner than you'd expect. Always replace them as a set.
Is replacing M3 engine mounts a DIY job?
For an experienced DIY mechanic, yes. The job requires an engine support bar or a floor jack to hold the engine up while you work. You will also need to loosen or lower the subframe to get access. It is a moderately difficult job that can take 3-5 hours. If you are not comfortable supporting the engine and working in tight spaces, it's best to leave this to a professional.
Will new engine mounts make my car feel different?
Yes, in a good way. If your old mounts were worn, new OEM-style mounts will make your M3 feel smoother, quieter at idle, and more responsive. The vibrations and clunks will be gone, restoring the car's premium feel.
Why can't I use a cheap aftermarket mount on my M3?
A BMW M3 is not a standard commuter car. Its engine produces high levels of torque and vibration that require specially engineered mounts. Cheaper, universal-style mounts use generic rubber compounds that can't properly dampen these vibrations, leading to a rough ride and a part that will fail very quickly under the stress.
Technical Specifications
OEM Part Numbers: 22118097149 22119503432 22112284818
The 2015-2023 BMW M3 uses two main engine mounts, which are typically hydraulic rubber mounts designed to absorb vibration while handling high torque loads. They are specific to the left and right sides of the engine.
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.
- BMW M3:
- 🛍️ Shop This Part
- Is Your M3's Ride Getting Rough? It Could Be the Engine Mounts
- Symptoms of Failing Engine Mounts
- A Note on Recalls and Service Bulletins
- Choosing the Right Aftermarket Engine Mount for an M3
- Tier 1: OEM and OE-Supplier Brands
- Tier 2: Performance Aftermarket Brands
- Tier 3: Standard Aftermarket Brands
- Pro Tip: Replace in Pairs
- Cost of Replacing BMW M3 Engine Mounts
- Frequently Asked Questions
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