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Replacing a radiator hose on a Mercedes-Benz GLC matters because a failing hose can cause overheating and leave you stranded. You want a hose that holds up to heat, resists oil and coolant exposure, and matches the GLC's factory connections so installation is straightforward. This guide covers seven shortlisted radiator hoses that meet those needs. We evaluated them on material quality, fitment accuracy, and durability to help you pick the right hose for routine maintenance or emergency replacement. Read on for the factors that should matter most when choosing a hose and what to expect during installation.
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 | A-Premium Cooler to Reservoir Radiator Coolant Hose for Mercedes-Benz W213/ W253 (Cooler to Reservoir) |  |
| Best Quality Built to a higher standard if you want something more solid | A-Premium Front Radiator Coolant Hose for Mercedes-Benz (2055015301) |  |
| Best Value The sweet spot between price and what you get | A-Premium Right Radiator Coolant Hose for Mercedes-Benz GLC300 X253 2016-2017 |  |
| Best Budget The cheapest option that still gets the job done reliably | A-Premium Radiator Coolant Hose (To Engine Connecting Point) for Mercedes‑Benz GLC/E350 |  |
| Highest Rated A top-rated pick with lots of positive feedback | VekAuto Radiator Overflow Vent Hose for Mercedes‑Benz GLC/E‑Class |  |
| Most Popular A crowd favorite that many people choose with confidence | Radiator Coolant Hose 2535013700 for Mercedes-Benz GLC (Right, Reservoir Vent) |  |
| Best Seller A high-volume bestseller chosen again and again | YGDMD Silicone Heater Hose, 1" ID x 5 ft |  |
1. A-Premium Cooler to Reservoir Radiator Coolant Hose for Mercedes-Benz W213/ W253 (Cooler to Reservoir)
| Compatible models | Mercedes‑Benz W213 E300 2017–2019; W253 GLC300 2017–2019; GLC350e 2018–2019 |
|---|---|
| Location | Cooler to Reservoir |
| Material | Rubber |
| Package Quantity | 1 |
This radiator coolant hose replaces the cooler-to-reservoir line on specified Mercedes‑Benz W213 E300 and W253 GLC models. It is made from molded rubber and is intended as a direct factory-quality replacement for the damaged or aged factory hose. Typical use is a straightforward under‑hood swap when the original hose leaks, softens, or shows cracks; installation suits a competent DIYer or a professional tech. Notable features include vehicle-specific fitment for Base and 4Matic submodels in the listed years, manufacturer testing and quality control, and a one-year unlimited-mileage guarantee. In practice the rubber construction provides flexibility and resistance to coolant exposure, while the model-specific shape reduces trimming or modification at installation. Limitations are that fitment is limited to the stated Mercedes models and submodels so confirm the reference part number before purchase, and as with most aftermarket hoses you should inspect clamps and mating surfaces during installation to ensure a proper seal.
Best for: Balanced all-round buyers who want a reliable, vehicle-specific factory-replacement hose for routine maintenance or end-of-life replacement without overpaying for brand-name parts.
Less Ideal for: Avoid this hose if you need parts for models outside the specified Mercedes-Benz W213 or W253 years or if you require a universal or performance-oriented silicone upgrade.
- Vehicle-specific fitment for Mercedes‑Benz W213 E300 and W253 GLC models for a direct replacement
- Molded rubber construction resists coolant and provides necessary flexibility
- Sold as a single, ready-to-install hose matching the cooler-to-reservoir routing
- Manufacturer testing and quality control aimed at meeting or exceeding factory specifications
- One-year unlimited-mileage guarantee for added peace of mind
- Compatibility restricted to listed model years and submodels only
Verdict: A vehicle-specific, factory-style replacement hose that restores the cooler-to-reservoir coolant connection on select Mercedes‑Benz GLC and E300 models.
2. A-Premium Front Radiator Coolant Hose for Mercedes-Benz (2055015301)
| Manufacturer | PremiumpartsWhosale |
|---|---|
| Brand | A-Premium |
| Manufacturer Part Number | APRH0380 |
| OEM Part Number | 2055015301 |
This front radiator coolant hose replaces the factory pipe between the expansion tank and shut-off valve on select Mercedes-Benz C300, C350e, E300, E350, and GLC300/350e models. Constructed from plastic and rubber, the part is shaped to the factory routing and is intended for direct replacement during cooling-system repairs or when the original hose leaks or softens. The listing notes the part underwent harsh testing and quality control to meet or exceed factory specifications, and the fitment notes specific exclusions for certain option codes and chassis ranges so installers should confirm vehicle compatibility before ordering. Benefits include OEM-style fit and a one-year unlimited-mileage guarantee for peace of mind, while limitations are the need to cross-check option codes and that the hose is a single replacement piece rather than part of a kit with clamps or complementary hoses. For a performance-oriented buyer seeking a durable, factory-quality replacement that preserves cooling system behavior, this hose is a sensible choice when matched to the correct Mercedes-Benz configuration.
Best for: Performance-oriented Mercedes owners who prioritize factory-quality replacement parts that preserve cooling system behavior and durability during spirited driving and long-term use.
Less Ideal for: Buyers looking for a full cooling hose kit with clamps and multiple hoses or those who cannot verify the specific vehicle option codes and chassis applicability should consider alternative solutions.
- Factory-style shape and routing for direct replacement on specified Mercedes-Benz models
- Constructed from rubber and plastic with stated testing to meet or exceed factory specifications
- One-year unlimited-mileage guarantee for added confidence
- Clear vehicle fitment notes and reference part number 2055015301 to aid correct selection
- Does not include mounting hardware or clamps in the package
- Fitment excludes cars with certain option codes and chassis ranges, requiring careful verification
Verdict: A factory-quality front radiator hose built to match Mercedes-Benz fitment and withstand demanding use while restoring proper coolant routing.
3. A-Premium Right Radiator Coolant Hose for Mercedes-Benz GLC300 X253 2016-2017
| Fitment | Mercedes-Benz GLC300 X253 2016-2017 L4 2.0L |
|---|---|
| Location | Right cooler to reservoir |
| Condition | New |
| Manufacturer Part Number | APRH0565 |
This A-Premium radiator coolant hose is a direct replacement for the right cooler-to-reservoir line on Mercedes-Benz GLC300 X253 2016–2017 2.0L models. It is intended for simple in-vehicle replacement and ships as a single boxed unit. The manufacturer says the hose is made from upgraded materials and subjected to harsh testing to meet factory-quality performance, which should translate to reliable coolant routing and resistance to heat and pressure for routine driving. Installation is straightforward for anyone comfortable with basic cooling-system work and uses the original mounting locations and connections. The product includes a one-year unlimited-mileage guarantee that provides short-term peace of mind. Limitations are typical of aftermarket hoses: long-term durability will depend on installation, coolant condition, and driving conditions, and there is limited published information on material composition and reinforcement compared with brand-name OE parts.
Best for: Practical optimizers looking for a budget-conscious, ready-to-install replacement hose for routine maintenance on a GLC300 who prioritize value and straightforward fitment.
Less Ideal for: Owners seeking factory-branded or fully documented OEM-spec components for extended high-mileage or heavy-duty driving should consider manufacturer original parts or premium alternatives.
- Made as a direct replacement for the Mercedes-Benz GLC300 X253 right radiator-to-reservoir hose
- Manufactured with upgraded materials and tested to meet factory-quality performance claims
- Ships as a single boxed unit and is straightforward to install using factory connection points
- Includes a one-year unlimited-mileage guarantee for short-term coverage
- Manufacturer does not publish detailed material or reinforcement specs for long-term durability comparison
Verdict: A value-oriented, direct-fit replacement hose that simplifies coolant-system repairs on 2016–2017 GLC300s while offering a one-year guarantee.
4. A-Premium Radiator Coolant Hose (To Engine Connecting Point) for Mercedes‑Benz GLC/E350
| Manufacturer Part Number | APRH0585 |
|---|---|
| OEM Part Number | 2385019400;238501940064 |
| Fitment | Direct Replacement |
| Location | To Engine Connecting Point |
| Warranty | 1 year unlimited-mileage guarantee |
This A-Premium radiator coolant hose is a direct-replacement part that connects the shutoff valve to the engine on selected Mercedes‑Benz E350 and GLC models. It is intended for routine cooling-system repairs and swaps in workshops or DIY garages and comes packaged as a single new hose. The listing emphasizes material durability and factory-spec testing to meet or exceed OEM requirements, and the seller backs the part with a one-year unlimited-mileage guarantee. In practice this means you get a straightforward fitment option for common failure points without needing a dealer part. The hose is useful when replacing a worn, cracked, or leaking coolant line and should restore proper coolant routing and pressure. Limitations are typical of aftermarket hoses: fit depends on exact reference numbers and careful comparison to the original part, and long-term lifespan will vary with installation quality and engine operating conditions.
Best for: Budget-conscious Mercedes‑Benz GLC or E350 owners who want a lower-cost, direct-replacement hose that restores cooling-system function without paying dealer prices.
Less Ideal for: Buyers seeking dealership-sourced parts with factory provenance or those who prefer parts with extended manufacturer-backed warranties should consider alternatives.
- Direct-replacement fit for specified Mercedes‑Benz E350 and GLC model years
- Seller states material and testing aimed to meet or exceed factory specifications
- One-year unlimited-mileage guarantee for added ownership peace of mind
- Comes as a single packaged unit for straightforward replacement
- Aftermarket fitment can require verification against OEM reference numbers to ensure correct installation
- Long-term durability depends on installation and vehicle operating conditions rather than a documented lifespan
Verdict: A cost-effective direct-replacement radiator hose that provides a practical, budget-friendly fix for cooling-system issues on covered Mercedes‑Benz GLC and E350 models.
5. VekAuto Radiator Overflow Vent Hose for Mercedes‑Benz GLC/E‑Class
| Material Type | Plastic |
|---|---|
| Fit for | Mercedes‑Benz GLC300/GLC350e/E300 4Matic (listed years) |
| Content | 1 Pc Radiators Hose |
This VekAuto radiator overflow/vent hose replaces the factory part on select Mercedes‑Benz GLC300, GLC350e and E300 4Matic models and is intended to restore proper sealing of the engine cooling system. Made from plastic formulated for high temperature resistance and aging resistance, it is used where the original vent hose has cracked, leaked, or become brittle. Installation is straightforward: remove the old hose and fit the new piece in place, which makes it a practical DIY repair for technicians and home mechanics. The design aims to prevent air or coolant leaks that can reduce cooling efficiency and degrade driving performance. Limitations are that fitment is model-specific so you must confirm the OE number or vehicle application before buying and plastic construction means it may not match the longevity of higher-grade rubber or silicone aftermarket hoses under extreme performance or off‑road conditions.
Best for: Reliability-focused buyers who prioritize restoring factory cooling system sealing on Mercedes‑Benz GLC and E‑Class 4Matic cars and who prefer a straightforward, serviceable replacement over performance upgrades.
Less Ideal for: Drivers seeking high-performance silicone hoses for track use or heavy-duty cooling upgrades should consider purpose-built alternatives designed for elevated temperatures and pressures.
- Made from heat-resistant plastic designed to resist aging and wear
- Direct replacement shape intended to restore proper sealing and prevent leaks
- Simple install process suitable for DIY removal and fitment
- Specifically listed to fit Mercedes‑Benz GLC300, GLC350e and E300 4Matic models
- Plastic material may not be as durable as premium rubber or silicone options under heavy-duty or high-heat use
- Fitment requires verification against the vehicle part number before purchase
Verdict: A model-specific, heat-resistant plastic replacement hose that restores proper cooling system sealing on listed Mercedes‑Benz GLC and E‑Class 4Matic vehicles.
6. Radiator Coolant Hose 2535013700 for Mercedes-Benz GLC (Right, Reservoir Vent)
| Material Type | Synthetic Rubber |
|---|---|
| Unit Count | 1.0 Count |
| Manufacturer | Beishiparts |
This replacement radiator hose fits the right-side coolant line between the radiator and the reservoir and is intended as a direct-fit factory replacement for compatible Mercedes-Benz GLC models. Made from synthetic rubber, it installs like an OEM part and is sold as a single hose; the listing references part number 2535013700 so you can confirm fitment before purchase. In everyday use the hose provides the same routing and connection points as the factory piece, making it a quick swap for a cracked or leaking vent hose and useful for DIY repairs. The synthetic rubber construction resists heat and coolant exposure, and customer reports indicate accurate fit and straightforward installation. Limitations are the single-piece supply and the need to verify the exact part number for your model year and engine, and the listing does not include clamps or additional fittings so you may need basic hand tools and hardware to complete the job.
Best for: Convenience-driven buyers who want a straightforward, replace-and-go part to fix a leaking or cracked coolant vent hose without sourcing multiple components or complicated repairs.
Less Ideal for: Those seeking a full repair kit with clamps or for vehicles that require a different part number should look for a matched kit or confirm compatibility with their exact GLC model and year.
- Direct-fit replacement that matches the OEM routing for the right radiator-to-reservoir vent line
- Synthetic rubber construction designed to resist coolant and under-hood heat
- Sells as a single, ready-to-install part for quick DIY swap
- Multiple product images and customer reviews report accurate fitment
- Does not include clamps or additional fittings so extra hardware may be needed
- Compatibility depends on matching the OEM part number so buyers must confirm fit before ordering
Verdict: A simple, synthetic-rubber direct replacement hose aimed at drivers who want a fast, do-it-yourself fix for the right radiator-to-reservoir vent line on Mercedes-Benz GLC models.
7. YGDMD Silicone Heater Hose, 1" ID x 5 ft
| Inner diameter | 0.97 inch |
|---|---|
| Material | Silicone |
| Length | 5 ft |
| Rupture pressure | 650 PSI |
| Working pressure | 250 PSI |
This YGDMD silicone heater hose is a flexible, cut-to-fit replacement intended for coolant or gas lines in vehicle heating or cooling systems. It is typically used to replace cracked or deteriorated heater hoses and can be trimmed to length for a custom fit. The silicone compound resists temperatures from -58 to 392°F, which helps maintain flexibility in extreme conditions, and the internal polyester fiber cord raises rupture resistance to the claimed 650 PSI with a normal working pressure around 250 PSI. That reinforcement and the hose’s pliability make installation straightforward on tight heater-core runs where bending and routing matter. Practical benefits include long temperature life, easy cutting to size, and good resistance to cracking compared with older rubber hoses. Important limitations are that it is not formulated for oil service and comes as a universal length rather than a vehicle-specific molded shape, so it requires clamps and careful routing on a Mercedes-Benz GLC to avoid kinks or hard bends near fittings.
Best for: A risk-averse mainstream buyer who wants a durable, flexible replacement hose for routine heater-core or coolant line repairs on a Mercedes-Benz GLC and prefers a straightforward, conservative repair approach.
Less Ideal for: Drivers who need a factory-shaped molded OEM replacement or a hose rated for oil service should look at vehicle-specific parts instead.
- High temperature range maintains flexibility in extreme heat and cold
- Polyester fiber reinforcement increases burst strength compared with plain rubber hose
- Cut-to-length 5 ft length lets you trim for a custom fit on complex heater runs
- Not suitable for oil lines so limited to coolant or gas applications
- Straight hose profile requires careful routing and clamps to fit vehicle-specific layouts
Verdict: A durable, high-temperature silicone replacement hose that offers flexibility and strength for coolant/heater repairs on a Mercedes-Benz GLC, but requires trimming and careful routing since it is not a molded OEM part.
Choosing the Right Mercedes-Benz GLC Radiator Hose: Key Factors to Consider
Material and Heat Resistance
The hose material determines how well it withstands engine bay temperatures and exposure to antifreeze and oil. EPDM rubber is common because it resists heat and coolant chemicals, while silicone offers higher temperature tolerance and flexibility but can be stiffer. Understanding the material helps predict lifespan and whether the hose will harden or crack over time.
Heat resistance also affects when a hose may soften or deform under prolonged high-temperature use. Choose a material rated for temperatures beyond typical engine operating ranges to reduce the chance of premature failure, especially if you drive in hot climates or tow frequently.
Fitment Accuracy and Hose Profile
Accurate fitment means the hose matches the diameter, length, and bends needed to connect the radiator, engine, and thermostat housing without strain. A hose that is too long can kink, while one that is too short can pull on fittings and loosen clamps. Profiles with pre-formed curves reduce installation hassle and maintain proper routing away from hot components.
Check that the hose has consistent internal diameter and wall thickness so clamps compress evenly. Precise end shapes and bead locations help create a secure seal against the radiator and engine nipples, which is essential to prevent coolant loss and air ingress.
Reinforcement and Structural Integrity
Reinforcements such as textile braids or internal layers increase a hose's resistance to collapse under vacuum and prevent bulging under pressure. Reinforced hoses are less likely to balloon when the thermostat closes or when the cooling system pressurizes during operation. This structural integrity extends service life and maintains consistent coolant flow.
Consider hoses with multiple layers or embedded reinforcement if the vehicle experiences frequent thermal cycling or higher than normal system pressure. A well-reinforced hose will keep its shape and avoid soft spots that lead to leaks.
Compatibility with Clamps and Connectors
Hose ends must accept the clamp types used on the Mercedes-Benz GLC, and the hose wall should be compatible with the clamp to form a tight seal. Some hoses are designed for worm-gear clamps, others for constant-tension spring clamps, and a few for OE-style crimped fittings. Using the wrong clamp type can damage the hose or fail to secure it properly.
Verify the hose bead design and wall thickness so clamps seat correctly. Also consider whether the hose requires additional adapters or retained clips for the factory fittings. Proper clamp compatibility reduces the risk of coolant hose leaks and simplifies future maintenance.
Durability and Resistance to Chemical Exposure
Coolant hoses must tolerate contact with antifreeze, oil, and occasional road contaminants without degrading. Chemical resistance prevents swelling, softening, or embrittlement that can lead to cracks and leaks. Materials rated for coolant chemistry maintain dimensional stability and sealing performance over time.
Look for hoses with specified resistance to automotive fluids and UV exposure if the routing exposes them near openings. Durability also includes resistance to abrasion where hoses rub against brackets or other components in the engine bay.
Ease of Installation and Serviceability
A hose that installs without extensive disassembly saves time and reduces the chance of damage during replacement. Pre-formed shapes that match factory routing, clear markings for orientation, and adequate length at each end all make installation easier. Consider whether the hose can be installed with standard tools and typical clamps.
Also factor in whether the hose allows future inspections and clamp adjustments. Hoses designed for straightforward removal and reseating reduce labor during routine maintenance and make it simpler to spot early signs of wear.
How We Chose the Best Mercedes-Benz GLC Radiator Hose
We prioritized hoses that deliver reliable sealing, accurate fitment to Mercedes-Benz GLC coolant ports, and long service life under elevated temperatures. Key evaluation criteria included material composition and resistance to heat and coolant chemistry, the precision of factory-style end fittings and hose diameters for correct fitment, reinforced construction or internal layering to resist collapse and bulging, and compatibility with common radiator hose clamp types used on the GLC. We also reviewed expected longevity under thermal cycling and mechanical stress, and the quality of manufacturing tolerances that affect sealing surfaces. Hoses with unclear material specifications, unknown fitment claims, or no information about clamp compatibility were excluded. We focused on attributes that influence service intervals, leak prevention, and straightforward installation on the vehicle.
Our full evaluation process is outlined in our review methodology.
FAQ
How can I tell if my Mercedes-Benz GLC radiator hose is failing?
Common signs include visible cracks, soft or spongy sections when squeezed, bulging or blistering, and visible coolant residue near hose connections. You may also notice overheating or low coolant levels that suggest a leak. Inspect hoses when the engine is cool and look for any deformation or wetness around clamps and fittings.
Should I replace the upper and lower radiator hoses at the same time?
It often makes sense to replace both hoses during a cooling system service because they age similarly and are exposed to the same conditions. Replacing both reduces the chance of one failing shortly after the other and saves effort during labor-intensive access. However, if one hose shows no signs of wear and is relatively new, you can assess replacement needs case by case.
What clamp type is best for securing a radiator hose on the GLC?
Compatibility depends on the hose end design and the GLC's factory fittings. Constant-tension spring clamps provide consistent pressure across temperature cycles, while worm-gear clamps allow adjustable tightening. Use the clamp style recommended for the hose end to avoid over-compressing or cutting into the hose wall. Ensure clamps fit snugly and sit squarely on the hose bead.
How long do radiator hoses typically last in this vehicle?
Lifespan varies with material, driving conditions, and maintenance, but hoses commonly last several years under normal use. Exposure to extreme heat, oil contamination, or frequent thermal cycling can shorten service life. Regular inspection for soft spots, cracks, or bulges helps identify when replacement is needed before a failure occurs.
Can I do a radiator hose replacement myself?
Many owners can replace a radiator hose with basic hand tools if they follow safe procedures and allow the engine to cool fully. Important steps include draining or containing coolant, loosening clamps safely, and ensuring correct routing to avoid kinks. If access is difficult or you are uncomfortable with cooling system pressure and fluid disposal, seek professional assistance.
Conclusion
When choosing a radiator hose for a Mercedes-Benz GLC, prioritize material quality, accurate fitment, and reinforcement that resists collapse and bulging. Confirm clamp compatibility and chemical resistance so the hose seals reliably and endures normal engine conditions. Balance ease of installation against durability. Replacing worn hoses proactively and using correct clamps reduces the risk of leaks and overheating. Focus on the factors discussed here to pick a hose that delivers dependable performance and straightforward serviceability.
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- Check out all Mercedes-Benz GLC parts & accessories
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