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If you own a Mercedes-Benz GLC, selecting the right oil catch can can help reduce oil vapor and carbon buildup in the intake and PCV system. Choosing an appropriate catch can matters because buildup can affect throttle response, idle quality, and long-term intake cleanliness. This guide lists seven shortlisted oil catch cans chosen specifically with the GLC in mind. We evaluated each option for build quality, mounting and hose routing simplicity, and how well it integrates with the vehicle's PCV and turbocharged systems. Read on to see the top picks and why they made the list.
Looking for other parts? See all Mercedes-Benz GLC parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | BOMLING 6.4L Billet Oil Catch Can Kit with Z‑Bracket for 5.7/6.4 HEMI |  |
| Most Popular A crowd favorite that many people choose with confidence | RULLINE 350ml Universal Baffled Oil Catch Can |  |
| Best Quality Built to a higher standard if you want something more solid | EVIL ENERGY Air Oil Separator (Oil Catch Can) |  |
| Best Budget The cheapest option that still gets the job done reliably | YESHMA 750ml Billet Aluminum Baffled 2-Port Oil Catch Can with Breather Filter and Drain Valve |  |
| Most Sold A high-volume bestseller chosen again and again | RALZAOTO Oil Catch Can Separator (anodized) |  |
| Best Value for Money The sweet spot between price and what you get | ESPEEDER Universal Aluminum Oil Catch Can with Breather Filter (300ml) |  |
| Best Overall The best all-around choice for most situations | EVIL ENERGY Baffled 300ml Oil Catch Can Kit with Breather Filter |  |
1. BOMLING 6.4L Billet Oil Catch Can Kit with Z‑Bracket for 5.7/6.4 HEMI
| Capacity | 0.12 Liters |
|---|---|
| Product Grade | Replacement Part |
| Fit Type | Vehicle Specific |
| Manufacturer | XUZHONG |
This billet oil catch can captures oil and vapors from the PCV/UPR plumbing before they reach the intake, condensing residue in an internal chamber so cleaner air returns to the engine. The kit is intended for vehicle-specific installation and ships with a new Z-bracket, billet hose ends, forged fittings and a diffuser upgrade to simplify mounting in the engine bay. Typical use is to route crankcase vent hoses through the can so it intercepts oil mist that would otherwise foul intake tract and valves. For a reliability-focused buyer the practical benefits are clear: reduced intake contamination, easier visual monitoring and a simple drain procedure to remove collected oil. Assembly and hose trimming are required and some installations interfere with large engine covers, so modest mechanical skill and a bit of patience are needed. The small 4 oz reservoir means it will need more frequent emptying on high-mileage or heavy-duty use, but the billet construction and included mounting hardware make it a robust, factory-replacement style option for drivers seeking preventative protection.
Best for: Reliability-focused owners who prioritize preventative engine protection and want a purpose-built, easy-to-mount catch can to reduce intake contamination under regular driving.
Less Ideal for: Buyers seeking a large-capacity or maintenance-free solution or those unwilling to modify or trim factory hose routing should consider other options.
- Vehicle-specific kit with Z-bracket and billet fittings for tidy, repeatable mounting
- Internal baffled chamber and diffuser to condense oil vapors before air returns to the intake
- Includes hose ends and forged fittings so no additional specialty parts are required
- Compact billet design is durable and straightforward to drain during maintenance
- Very small 4 oz capacity requires frequent checks and emptying on higher-mileage engines
- May prevent reinstallation of some large engine covers and can require trimming hoses during fitment
Verdict A compact, vehicle-specific billet catch can that gives reliability-minded owners a durable, preventative way to keep oil out of the intake but requires regular emptying due to its small reservoir.
2. RULLINE 350ml Universal Baffled Oil Catch Can
| Capacity | 350 Milliliters |
|---|---|
| Fuel Type | Gasoline |
| Fit Type | Universal |
| Product Grade | Performance Part |
This RULLINE catch can captures oil and moisture from PCV/CCV lines and stores them in a 350ml baffled reservoir, helping reduce carbon and sludge build-up in the intake of a Mercedes‑Benz GLC. It is fully TIG welded and uses an O‑ring sealed screw cup and dipstick to check fluid level without disassembly. The kit includes three adapter fittings and an upgraded braided hose that is more durable than basic rubber lines, though many buyers still replace or resize hoses for a perfect fit. Installation requires finding a secure mounting point and routing short hose runs between the PCV and intake; the small included bracket often needs modification or replacement for tidy installs. Practical benefits are cleaner intake components over long miles and a simple serviced reservoir with visible fill indication. Limitations include the modest 350ml capacity that needs periodic emptying on some engines and the need to adapt hose diameters or use better clamps for a leak-free connection.
Best for: Convenience‑driven buyers who want a simple, serviceable upgrade to reduce intake deposits on their Mercedes‑Benz GLC without a complex custom setup or frequent teardown.
Less Ideal for: Owners seeking a high‑capacity, vehicle‑specific solution or a plug‑and‑play kit tailored to exact Mercedes‑GLC hose fittings should consider purpose‑built options instead.
- Baffled 350ml reservoir reduces oil and moisture reaching the intake.
- Fully TIG welded aluminum body with O‑ring sealed screw cup for reliable sealing.
- Includes dipstick for easy level checks without removing the can.
- Supplied braided hose is more durable than standard rubber tubing.
- Three adapter fittings increase chances of matching factory hose sizes.
- 350ml capacity may require frequent draining on high‑blow‑by or long‑interval use.
- Mounting bracket is generic and often needs modification for a clean install.
- Supplied hose and clamps sometimes require replacement or resizing for an exact fit.
Verdict A compact, affordable catch can that provides convenient intake protection for a Mercedes‑GLC but may need hose and mounting tweaks for a tidy, leak‑free installation.
3. EVIL ENERGY Air Oil Separator (Oil Catch Can)
| Brand | EVIL ENERGY |
|---|---|
| Manufacturer | Speedwow Tuning |
| Compatible engines | 5.3L and 6.2L V8 (listed fitments) |
| Item model number | EV07326BK |
This EVIL ENERGY air oil separator is a bolt-on catch can kit that captures oil vapor before it reaches the intake, using an internal fine-mesh aluminum filter and a small reservoir that requires periodic draining. It is supplied with brackets, hoses, fittings and clamps intended for direct-fit installation, and the package includes simple instructions so a competent DIYer can route the PCV and intake lines to the unit. In practice the can traps measurable oil within the first few hundred miles and reviewers report secure mounts and no vacuum leaks when installed correctly. The unit’s small reservoir means you will need to check and empty it often, and some users upgraded the supplied hoses or clamps to longer-lasting parts to withstand heat over time. The plastic fittings on a few kits have shown wear in high-heat applications, so consider swapping to higher-temperature fittings if the engine bay runs hot. For someone wanting a straightforward, performance-minded solution to reduce oil contamination in the intake stream, this kit does the job affordably, but expect routine maintenance and minor parts upgrades for long-term durability.
Best for: Performance-oriented buyers who want a simple, factory-replacement style catch can to reduce oil vapors and protect the intake on a tuned or high-mileage vehicle.
Less Ideal for: Drivers who prefer a maintenance-free modification or need a large-capacity, service-free catch can should look for heavier duty, higher-capacity alternatives.
- Includes custom brackets, pre-fitted hoses and clamps for straightforward installation
- Fine-mesh aluminum filter captures oil vapor and reduces intake contamination
- Compact, secure mounting that fits tight engine bays and stays leak-free when routed correctly
- Well documented by user reports showing measurable oil collection within a few hundred miles
- Reservoir capacity is small so it requires frequent checking and draining
- Some supplied hoses and plastic fittings may degrade in high-heat conditions and could need replacement
Verdict A budget-friendly, performance-oriented catch can that effectively traps oil vapor but needs regular draining and occasional hose/fitting upgrades for long-term durability.
4. YESHMA 750ml Billet Aluminum Baffled 2-Port Oil Catch Can with Breather Filter and Drain Valve
| Fit Type | Universal |
|---|---|
| Fuel Type | Diesel, Gasoline |
| Manufacturer | YESHMA |
| Capacity | 750ml |
This catch can is a simple, budget-focused solution that traps oil and blow-by before it reaches the intake. It installs inline with the PCV/CCV plumbing and uses internal baffles plus an external breather to separate oil vapor into a 750ml reservoir; a quick-drain valve and included hose connectors make periodic servicing straightforward. The billet aluminum body is anodized for corrosion resistance and looks substantially more finished than plastic alternatives. Practical benefits include a large catch volume that reduces how often you need to empty it and a drain valve that speeds routine maintenance. On the downside the unit is universal rather than vehicle-specific so fitment for tight engine bays can require custom mounting or shorter hoses, and a few user reports note cosmetic machining debris and a less-than-robust factory drain seal that may need inspection before installation. This is a cost-effective pick if you want basic oil separation for an intake system without paying for a vehicle-specific kit.
Best for: Budget-conscious Mercedes‑Benz GLC owners who prioritize low cost and a simple add-on to reduce intake oil contamination while accepting some DIY fitment and prep work.
Less Ideal for: Owners seeking a vehicle-specific, plug-and-play solution with guaranteed fit and factory-grade seals should consider a purpose-built GLC catch can kit instead.
- 750ml capacity reduces how often it needs emptying compared with smaller cans
- Billet aluminum construction with anodized finish for durability and a factory-quality look
- Baffled internal design and external breather help separate oil from crankcase vapors
- Includes drain valve and multiple hose connectors for easier serviceability
- Universal design may require custom mounting or hose routing for the GLC's confined engine bay
- Some units reported machining debris and thread contamination that need cleaning before fitment
Verdict A low-cost, large-capacity aluminum catch can that delivers basic oil separation for a GLC but needs minor prep and custom mounting for a neat installation.
5. RALZAOTO Oil Catch Can Separator (anodized)
| Material | Anodized aluminum |
|---|---|
| Compatible engines listed | 5.3L and 6.2L (truck/SUV applications) |
| Included parts | Hoses, brackets, fittings |
This anodized aluminum oil catch can captures oil vapor from the PCV side and stores it in a small reservoir to reduce oil buildup in the intake tract. It installs using the included hoses, custom brackets and fittings intended for direct replacement, so typical fitment is plug-and-play when the bracket locations and hose routing match your vehicle. The internal fine-mesh aluminum filter helps trap small droplets and carryover, which slows carbon and intake-valve deposits and makes periodic maintenance straightforward. Users report easy installs when factory hoses are pliable and that the can collects measurable oil within a few hundred miles. The main limitations are the can’s modest capacity and the need to check and drain it every 500 to 1,500 miles depending on driving; heavier city driving will fill it faster. Some buyers also noted sparse instructions, so a shop or experience with PCV plumbing helps avoid routing mistakes. If you want a simple, metal catch can that performs separation without major engine modifications, this is a practical option.
Best for: A risk-averse mainstream buyer who wants a simple, factory-style add-on to reduce intake oil contamination and protect engine longevity without major modifications.
Less Ideal for: Not a good fit for owners seeking large-capacity or maintenance-free separation solutions or those unwilling to perform periodic inspections and drains.
- Anodized aluminum construction resists heat and pressure for durable under-hood use.
- Includes hoses, custom brackets and fittings for direct-replacement style installation.
- Fine-mesh internal filter captures small oil droplets to reduce intake and valve deposits.
- Compact design installs in common PCV locations without major modifications.
- Small reservoir capacity requires frequent checks and draining during daily-driven use.
- Instructions can be minimal, which may complicate installation for less experienced DIYers.
Verdict A straightforward, aluminum catch can that reduces intake oil contamination but requires regular draining due to its small capacity.
6. ESPEEDER Universal Aluminum Oil Catch Can with Breather Filter (300ml)
| Capacity | 300 Milliliters |
|---|---|
| Material Type | Aluminum |
| Fit Type | Universal Fit |
| Fuel Type | Gasoline |
| Product Grade | Performance Parts |
This ESPEEDER catch can is a simple, universal-fit reservoir designed to trap oil and moisture before they re-enter the intake system. It installs inline with crankcase or PCV plumbing and is most commonly mounted in the engine bay using the included bracket and fittings. The 300 ml baffled reservoir, internal dipstick and removable bottom make it easy to monitor and drain collected oil without disassembly. Constructed from T-6061 aluminum with an anodized finish and TIG welded seams, it is corrosion resistant and feels sturdily machined. The kit includes two sized fittings, a small breather filter and basic hoses and clamps, though the supplied soft hose is intended as a temporary aid and buyers should use heat-rated vacuum hose for long-term use. Because it is a universal part, you may need to select mounting location and hose routing specific to the GLC and adapt fittings for factory lines. For buyers wanting a low-cost, well-built catch can that reduces intake contamination on a tuned or higher-mileage Mercedes-Benz GLC, this is a practical option, while those seeking vehicle-specific plumbing or an oil-free venting solution should consider more specialized alternatives.
Best for: Practical optimizers who want a low-cost, durable upgrade to reduce oil contamination in the intake of their Mercedes-Benz GLC and who are comfortable adapting a universal part to the vehicle.
Less Ideal for: Drivers who want a vehicle-specific, plug-and-play catch can with factory-style fittings or those who prefer a completely closed, oil-free crankcase venting system.
- Baffled 300 ml reservoir with removable drain and dipstick for easy monitoring and cleaning
- T-6061 aluminum body with anodized finish and TIG welding offers durable, corrosion-resistant construction
- Includes multiple fittings, breather filter and basic mounting hardware for a mostly complete kit
- Compact size and universal fit allow flexible placement in the engine bay of the GLC
- Supplied hose is low-quality and not rated for high temperature so replacement is recommended
- Universal fittings mean adapter hoses or custom routing may be required for a factory Mercedes-Benz GLC plumbing interface
Verdict A cost-effective, durable universal catch can that pairs well with a Mercedes-Benz GLC when you replace the supplied hose and adapt the fittings for a clean, reliable installation.
7. EVIL ENERGY Baffled 300ml Oil Catch Can Kit with Breather Filter
| Capacity | 300 Milliliters |
|---|---|
| Fit Type | Universal |
| Fuel Type | Gasoline |
| Manufacturer | Speedwow Tuning |
This 300ml baffled oil catch can is a compact kit that captures oil and water vapor from the crankcase ventilation system to reduce intake and valve deposits on turbo and direct‑injection engines. It installs inline with PCV/CCV hoses or as a breather vent on pre‑PCV systems and ships with hose, fittings, a dipstick, stainless wool baffle media and a bracket for mounting. For a Mercedes‑Benz GLC it offers a tidy, low‑profile option that keeps oil mist out of the intake tract and makes monitoring simple via the dipstick and removable drain. The included breather filter gives an alternative venting method for setups where recirculation is not desired. Practical benefits are easy installation in tight engine bays, visible catch and straightforward servicing. Limitations to note are the small 300ml capacity requiring more frequent draining on high blowby engines and occasional reports of missing or low‑quality small parts such as clamps, so plan to have a few extra hose clamps and slightly different hose sizes on hand for a clean fit in some GLC model years.
Best for: Balanced, all‑round buyers who prioritize long‑term engine cleanliness and want a compact, easy‑to‑fit catch can for routine maintenance and improved intake longevity on their Mercedes‑Benz GLC.
Less Ideal for: Drivers who prefer a set‑and‑forget, high‑capacity solution for very high blowby engines or those unwilling to source a few replacement clamps or alternate hose sizes should consider larger or vehicle‑specific units instead.
- Baffled internal media and stainless wool help separate oil and reduce mist from entering the intake.
- Compact 300ml can is easy to fit in confined engine bays like the GLC.
- Comes as a full kit with hose, fittings, dipstick and mounting bracket for quicker installation.
- Option to run with or without the breather filter lets you choose sealed recirculation or open breather configurations.
- 300ml capacity is relatively small and will require frequent draining on engines with heavier blowby.
- Some kits have inconsistent small parts quality or missing clamps requiring replacement.
- Included hose ID is 3/8" so may need a longer or larger hose for certain GLC routing options.
Verdict A compact, well‑equipped universal catch can that fits tight GLC engine bays and keeps intake deposits down, but expect to top up hoses or clamps and empty the small 300ml reservoir more often.
Choosing the Right Mercedes-Benz GLC Oil Catch Can: Key Factors to Consider
Fitment and Hose Orientation
A catch can that matches the GLC’s PCV and intake port locations reduces installation time and the need for adapter fittings. Correct inlet and outlet placement prevents awkward hose runs that can kink or collect oil, which would undermine performance.
Consider how the unit mounts relative to existing brackets and whether included hoses and clamps are sufficient. Poor orientation can make routine draining or inspection difficult and increase the chance of leaks or disconnections during driving.
Construction Material and Durability
Materials like billet aluminum or stainless steel resist corrosion and tolerate engine-bay heat better than cheaper plastics. Durable construction helps maintain a tight seal and prevents thread or component wear over time.
Look for corrosion-resistant finishes, robust fittings, and reinforced hose ends. Longevity matters because a failing catch can could introduce leaks or contaminants rather than capturing them.
Separation Method and Internal Design
Different catch cans use baffles, mesh, or filter media to separate oil from blow-by gases. The internal design affects how well oil droplets coalesce and settle out before air returns to the intake.
A well-designed internal path minimizes carryover and reduces how often you must drain the unit. Consider units with visible inspection ports or clear reservoirs if you prefer quick visual checks without disassembly.
Mounting Hardware and Accessibility
Mounts should secure the catch can against vibration and be positioned for convenient access. A location that requires removing many components for basic service will discourage routine maintenance.
Check whether the kit includes vehicle-specific brackets or universal solutions that adapt to the GLC’s engine bay. Easy-to-remove drain plugs or quick-disconnect fittings make emptying the can less messy and faster.
Compatibility with Turbocharged Systems
Turbocharged engines route crankcase vapors differently and can have higher pressures and temperatures. A catch can intended for forced-induction applications will handle heavier oil load and higher flow rates without restricting ventilation.
Ensure the unit’s hose and fitting sizes match the GLC’s lines and that the design avoids creating excessive backpressure on the PCV system. Proper balance keeps the engine breathing as intended while capturing contaminants.
Maintenance Requirements and Serviceability
Some catch cans require frequent draining or filter replacement, while others offer larger capacity or self-draining features. Consider how often you are willing to check and service the unit.
Accessible drain points, clear volume indicators, and straightforward reassembly reduce the chance of neglect. Maintenance burden influences long-term effectiveness and whether the catch can remains an active part of the vehicle’s ventilation system.
FAQ
Will adding a catch can harm my Mercedes-Benz GLC’s engine warranty?
Warranty effects depend on the terms and local regulations and whether installation causes damage. Installing a catch can can be considered a modification, so document the installation and avoid altering factory components in ways that could cause oil leaks or engine issues. If unsure, consult an authorized service provider or your warranty documents before modifying the PCV system.
How often should I check or drain a catch can on a GLC?
Drain intervals vary with driving style, engine condition, and catch can capacity. Typically, inspect the can every few thousand miles or during regular maintenance intervals. Vehicles with frequent short trips or heavy boost use may accumulate oil faster and need more frequent checks.
Can a catch can cause issues with the PCV system if installed incorrectly?
Yes. Incorrect hose routing, improper sealing, or using undersized fittings can create backpressure or leaks that affect ventilation and engine performance. Follow installation guidance for routing and secure all connections, and verify there is no excessive pressure buildup after installation.
Does a catch can eliminate carbon buildup in the intake entirely?
A catch can reduces the amount of oil vapor entering the intake, which helps slow carbon accumulation, but it does not eliminate buildup completely. Other factors such as fuel composition, engine design, and maintenance practices also influence carbon deposits over time.
Is a catch can difficult to install on a turbocharged GLC engine?
Difficulty varies by kit and your mechanical experience. Some kits include vehicle-specific brackets and fittings that simplify installation, while universal kits may require trimming hoses or fabricating mounts. Plan for 1 to 3 hours for many installations and ensure proper hose routing to avoid kinks.
How We Chose the Best Mercedes-Benz GLC Oil Catch Can
We focused on options that suit the Mercedes-Benz GLC’s engine layout and common service constraints. Key evaluation criteria included material and build quality to ensure corrosion resistance and durability, inlet and outlet orientation to match GLC vacuum and PCV ports, mounting options and hardware compatibility with common GLC engine bays, ease of installation including hose routing and clamp quality, and maintenance accessibility for routine draining or servicing. We also considered filtration and baffle design that influence oil separation efficiency and how a unit handles turbocharged crankcase ventilation. Units that required extensive modification or did not offer clear GLC-specific fitment were excluded. Our list emphasizes practical fit, reliable materials, and straightforward serviceability rather than novelty features.
Our full evaluation process is outlined in our review methodology.
Conclusion
When choosing an oil catch can for a Mercedes-Benz GLC, prioritize correct fitment, robust construction, and serviceability. These factors determine how well the unit integrates with the PCV and turbo systems and how easily you can maintain it over time. Balance separation performance with ease of installation and regular maintenance needs. A well-chosen catch can will reduce oil vapor in the intake without introducing undue backpressure or service burden, helping preserve intake cleanliness and engine responsiveness.
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