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A worn or failing engine mount can let the powertrain move excessively, increase vibration, and cause unusual noises when accelerating or shifting. Choosing the right Mercedes-Benz GLC engine mount matters because the wrong type or poor-quality unit can make those symptoms worse or shorten service intervals. This guide highlights the top shortlisted options for the GLC and explains the criteria used to evaluate durability, vibration isolation, and fitment reliability. Read on for the key factors we considered before the product list.
Looking for other parts? See all Mercedes-Benz GLC parts & accessories.
Top Picks at a Glance
| Best overall The best all-around choice for most situations | Bomunik Front Left & Right Engine Mounts for Mercedes-Benz C/GLC (2015–2020) |  |
| Best Budget The cheapest option that still gets the job done reliably | Generic Rear Engine Mounts for Mercedes-Benz GLC C-Class E-Class CLS (2052405900) |  |
| Highest Rated A top-rated pick with lots of positive feedback | AUTOKAY Oil-Filled Hydraulic Engine Mount Kit (2 pcs) for Mercedes-Benz |  |
| Best Seller A high-volume bestseller chosen again and again | SHICHU Engine Motor Mount Set compatible with Mercedes-Benz C-Class and GLK (select years) |  |
1. Bomunik Front Left & Right Engine Mounts for Mercedes-Benz C/GLC (2015–2020)
| Material Type | Alloy Steel, Aluminum |
|---|---|
| Mounting Type | Engine Mount |
| Set Name | 2 items |
| Manufacturer | Bomunik |
These Bomunik front engine mounts come as a two‑piece set intended to replace worn factory mounts on compatible Mercedes‑Benz C‑class and GLC 4Matic models. They mount in the front left and right positions and are offered as direct replacement parts for matching reference numbers, so installation is the typical DIY or shop job that restores engine stability and reduces shake during startup, idling, and cornering. The listing notes alloy steel and aluminum construction with a powder coated finish, which suggests good corrosion resistance and a solid mounting surface. Buyers report smooth, near‑factory feel after installation, and the pair format covers both sides at once. Limitations to consider are mixed user experiences on longevity and the need to confirm exact part references before ordering because fitment is specific; this is not a universal part. Expect some vehicles to require professional installation for torque and alignment accuracy. For a balanced buyer wanting a practical, fitment‑focused replacement for Mercedes GLC models, this set aims to restore comfort without major modification.
Best for: Balanced buyers who prioritize a practical, near‑factory replacement that restores ride comfort and reduces engine vibration on Mercedes GLC and similar C‑class 4Matic models.
Less Ideal for: People seeking an upgraded performance mount or a long‑term high‑mileage warranty solution should look at reinforced or OEM dealer options instead.
- Sold as a matched pair covering both front left and right mounts
- Constructed from alloy steel and aluminum for strength and corrosion resistance
- Powder coated finish improves surface durability
- Designed to match specific Mercedes part references for straightforward fitment
- Multiple buyers report near‑factory smoothness after installation
- Some reviewers reported premature wear on a small number of units
- Fitment depends on confirming exact part numbers so incorrect ordering is possible
Verdict: A practical, fitment‑focused pair of front engine mounts that can restore factory‑like smoothness on compatible Mercedes C‑class and GLC 4Matic models when the correct part references are confirmed.
2. Generic Rear Engine Mounts for Mercedes-Benz GLC C-Class E-Class CLS (2052405900)
| Brand Name | Generic |
|---|---|
| Manufacturer | ESBSM |
| Part Number | 4654364557401 |
| Size | 2052405900 |
These rear engine mounts are a budget-focused replacement intended for Mercedes-Benz C-Class, E-Class, CLS and GLC models that use part numbers 2052405900/2052406000. They replace worn mounts to reduce engine movement and cabin vibration by providing rubber isolation between the engine and chassis. The listing positions the mounts as direct-fit factory-style replacements and notes multiple inspections during production. In typical use you swap the failed mount(s) for these units during routine repair or when you notice increased vibration, engine rocking on acceleration, or visible mount deterioration. The practical benefits are straightforward: lower cost than dealer parts and the ability to restore acceptable NVH and engine stability without extensive modification. Limitations to expect are typical of economy aftermarket parts, including variation in fitment tolerance and possibly shorter service life compared with higher-end or factory replacements. Installers should verify exact fitment for their model year and inspect for proper alignment during installation.
Best for: Budget-conscious owners looking to restore acceptable cabin vibration and engine stability on a Mercedes-Benz GLC or similar model without paying dealer prices.
Less Ideal for: Drivers seeking longest possible service life or guaranteed factory-equivalent performance should consider higher-end or OEM replacement mounts instead.
- Low-cost replacement option for common Mercedes-Benz rear engine mount part numbers
- Designed to reduce engine vibration and limit engine movement under load
- Sold for rear mount locations compatible with several Mercedes-Benz models
- Manufacturer states multiple inspections and quality control during production
- Aftermarket budget parts may have more variation in fit and shorter lifespan than premium or factory-quality mounts
- Listing does not include detailed material specifications or performance test data
Verdict: An affordable rear engine mount replacement that restores engine stability and reduces vibration for Mercedes-Benz GLC and related models.
3. AUTOKAY Oil-Filled Hydraulic Engine Mount Kit (2 pcs) for Mercedes-Benz
| Set Name | 2 Pcs Engine Mount Kit |
|---|---|
| Material Type | Rubber |
| Manufacturer | AUTOKAY |
| Model Number | 2022404917 2032400517 |
These AUTOKAY engine mounts are a two-piece oil-filled hydraulic replacement kit intended to restore factory-like engine damping and reduce vibration for compatible Mercedes-Benz models. They replace collapsed or leaking mounts and are typically used as a driver and passenger side pair during routine maintenance or when idle vibration and engine movement become noticeable. Notable features include hydraulic fluid-filled construction for smoother isolation, rubber components for noise reduction, and a fitment targeted to Mercedes models listed by the manufacturer. In practice the mounts deliver quieter idle and firmer engine positioning compared with failed originals, and multiple owner reports indicate straightforward fit and reliable performance after installation. Limitations are that fitment must be checked against your exact model and year before purchase and these are aftermarket parts rather than direct factory parts, so long-term durability may vary by use and installation quality.
Best for: Reliability-focused Mercedes owners who prioritize restoring smooth idle and reducing engine vibration with a practical replacement rather than an OEM part.
Less Ideal for: Drivers seeking an exact factory-sourced component or those unwilling to verify precise model fitment should consider alternatives or dealer-sourced mounts.
- Hydraulic, oil-filled design improves vibration isolation compared with solid mounts
- Sold as a driver and passenger side pair for coordinated replacement
- Rubber components help reduce noise and harshness at idle
- Multiple buyer reports of good fit and immediate improvement in engine vibration
- Aftermarket part rather than factory replacement so long-term lifespan can vary
- Fitment requires verification against exact Mercedes model and year
Verdict: A practical oil-filled hydraulic replacement kit that restores engine isolation and reduces vibration for compatible Mercedes-Benz models.
4. SHICHU Engine Motor Mount Set compatible with Mercedes-Benz C-Class and GLK (select years)
| Brand Name | SHICHU |
|---|---|
| Set Name | Engine Motor Mount Set |
| Material Type | Alloy Steel |
| Included Components | Engine Motor Mount |
This SHICHU engine motor mount set supplies the main engine and transmission mounts you need to restore normal engine support and reduce vibration on compatible Mercedes models. It is sold as a kit that includes a transmission mount plus left and right motor mounts and is marketed as a fit for late‑2000s to early‑2010s C‑Class, GLK and related chassis numbers. In practice the mounts install like common factory-replacement units and will be used when original mounts show cracking, excess vibration, or oil leakage. The listing shows alloy steel construction and several buyers report good fit and quieter operation after installation, which makes this a practical option for a budget replacement. Notable limitations are mixed user reports about dimensional differences and occasional missing studs or hardware compared with factory parts, so careful fitment checks and possibly minor adjustments or fastener swaps may be needed. Build quality appears variable between production runs, so expect a budget aftermarket level of finish rather than a factory exact duplicate.
Best for: Risk-averse mainstream buyers who prioritize restoring quiet, factory-like operation on older Mercedes models without paying dealer labor rates or OEM parts premiums.
Less Ideal for: Buyers seeking a guaranteed factory-identical or long-term performance solution; those who prefer fully verified OEM-fit parts from an authorized Mercedes parts supplier should look elsewhere.
- Sold as a multi-piece kit covering engine and transmission mounts for a single purchase
- Alloy steel construction aims for durable support compared with economy rubber-only mounts
- Many buyers report straightforward installation and effective vibration reduction
- Includes transmission mount plus left and right motor mounts so you replace multiple worn components at once
- Fitment consistency varies and some customers reported dimensional differences from factory parts
- Occasional reports of missing studs or different fastener arrangements requiring additional hardware or modification
Verdict: A cost-effective multi-piece replacement mount kit that can quickly reduce engine vibration and restore drivability on supported Mercedes models.
Choosing the Right Mercedes-Benz GLC Engine Mount: Key Factors to Consider
Fitment and Compatibility
Correct fitment matters because engine mounts must align with specific mounting points and engine orientations on the Mercedes-Benz GLC. A mount with precise compatibility reduces the need for adapter plates or modification and ensures engine loads are transferred as designed.
Incorrect fitment can lead to accelerated wear, fastener strain, or unexpected vibration. Verify vehicle year, engine code, and mounting location to match the mount to your specific GLC variant before purchasing or installing.
Vibration Isolation and NVH Performance
How well a mount isolates vibration directly affects cabin comfort and perceived refinement. Good isolation reduces high-frequency buzz and low-frequency shaking during acceleration, idle, and gear changes.
Consider mounts that balance stiffness and damping so they control engine movement without transmitting harsh impulses into the chassis. Look for descriptions of damping characteristics or design features that target NVH reduction.
Material Durability and Resistance
Engine mounts are exposed to oil, road salt, heat, and mechanical stress. Materials that resist oil swelling, heat degradation, and ozone attack will last longer and maintain their properties.
Rubber compounds, bonded interfaces, or hydraulic elements should be specified with durability expectations. Longer-lasting materials reduce the chance of premature cracking, separation, or fluid loss in hydraulic mounts.
Load Capacity and Mounting Stiffness
A mount must support the engine's weight and torque reactions without excessive deflection. Load capacity and stiffness determine how much movement occurs under acceleration or during engine torque pulses.
Too soft a mount allows excessive engine movement, affecting driveline alignment and causing clunks. Too stiff a mount can transmit shocks into the chassis and increase noise. Choose a mount with an appropriate stiffness profile for everyday driving and any intended vehicle loads.
Serviceability and Installation
Installation complexity affects labor time and the chance of improper installation. Mounts that preserve original fastener patterns and require minimal disassembly simplify service.
Consider whether special tools, engine support, or alignment procedures are needed. Service-friendly designs save shop time and reduce the risk of installation errors that could affect mount performance.
Warranty and Manufacturer Support
A clear warranty indicates confidence in manufacturing and provides protection against premature failure. Warranty terms often reflect expected lifespan and build quality.
Check what is covered and for how long, including labor reimbursement or replacement policies. Manufacturer support and documented installation instructions also help ensure correct long-term use.
How We Chose the Best Mercedes-Benz GLC Engine Mount
We narrowed candidates using criteria that reflect real-world use on the Mercedes-Benz GLC. Primary filters included precise fitment to GLC chassis and engine variants, vibration isolation performance under load, and long-term material durability against oil and heat exposure. We also evaluated mounting point integrity, the quality of bushings or hydraulic elements, and ease of installation for typical garage or mechanic work. We excluded items that lacked clear fitment data for the GLC or that used unverified materials or manufacturing processes. Units intended only for racing or modified engines were not considered. The final list emphasizes components that balance longevity, NVH reduction, and serviceability for everyday driving on the GLC platform.
Our full evaluation process is outlined in our review methodology.
FAQ
What are common symptoms of a failing engine mount on a Mercedes-Benz GLC?
Common signs often include increased vibration at idle, noticeable movement or clunking during acceleration or gear changes, and new or worsening engine-related noises. Symptoms vary with which mount is affected and the engine load, so inspection under different driving conditions is useful.
Can I replace a Mercedes-Benz GLC engine mount myself?
Replacing a mount can be a DIY project if you have basic mechanical skills, the correct tools, and a clear service manual for your GLC. It typically requires supporting the engine, removing fasteners, and aligning the replacement. If you lack tools or experience, professional installation reduces the risk of alignment or torque errors.
How long do engine mounts usually last on a vehicle like the GLC?
Mount lifespan usually depends on driving conditions, exposure to oil or heat, and load cycles. Many mounts last several years under normal conditions, but frequent short trips, aggressive driving, or fluid exposure can shorten life. Regular inspections help catch deterioration early.
Will a stiffer mount improve handling on the GLC?
A stiffer mount can reduce engine movement and may marginally sharpen throttle response, but it often transmits more vibration and noise to the cabin. For daily-driven GLC models, a balanced mount that controls movement while maintaining NVH comfort is usually the better choice.
Are there signs that indicate immediate replacement is required?
Visible separation, cracked or missing rubber, leaking hydraulic fluid, or large engine shifts during startup are indicators that replacement should not be delayed. Any condition that compromises secure engine support or creates safety concerns warrants prompt attention.
Conclusion
When choosing a Mercedes-Benz GLC engine mount, prioritize correct fitment, effective vibration isolation, and materials that withstand oil and heat. Balance stiffness and damping to control engine movement without introducing excess noise into the cabin. Also consider installation complexity and warranty terms as part of the overall value equation. Focusing on those factors helps you select a durable mount that maintains refinement and driveline alignment on the GLC.
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- Check out all Mercedes-Benz GLC parts & accessories
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