7 Best Transmission Pans for Mercedes-Benz C-Class: Easier Maintenance and Leak Prevention

Mike
By Mike
Certified Professional Automotive Mechanic – Owner and Editor of VehicleRuns
Last Updated: June 19, 2026

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Choosing the right transmission pan for your Mercedes-Benz C-Class affects cooling performance, fluid serviceability, and long-term leak prevention. A properly selected pan can help maintain transmission temperatures, reduce the risk of gasket failures, and make scheduled fluid changes faster and cleaner. This guide lists the top shortlisted transmission pans for the C-Class, selected for fitment accuracy and durable construction. Below we outline the evaluation criteria used and present the recommended options for different maintenance and durability priorities.

Top Picks at a Glance

Bomunik Transmission Oil Pan Set (8 Piece) for Mercedes-Benz 1998–2025Bomunik Transmission Oil Pan Set (8 Piece) for Mercedes-Benz 1998–2025
Best Quality
Built to a higher standard if you want something more solid
Mercedes-Benz Genuine Transmission Pan 2212701212Mercedes-Benz Genuine Transmission Pan 2212701212
Best Value
The sweet spot between price and what you get
A-Premium Transmission Oil Pan with Drain Plug and Gasket for Select Mercedes-BenzA-Premium Transmission Oil Pan with Drain Plug and Gasket for Select Mercedes-Benz
Best Budget
The cheapest option that still gets the job done reliably
A-Premium Lower Transmission Oil Pan Sump (fits Mercedes‑Benz C300 2015–2018, 2.0L)A-Premium Lower Transmission Oil Pan Sump (fits Mercedes‑Benz C300 2015–2018 2.0L)
Highest Rated
A top-rated pick with lots of positive feedback
EPPO Transmission Oil Pan (A7252703114) for Mercedes‑Benz C‑Class and select modelsEPPO Transmission Oil Pan (A7252703114) for Mercedes‑Benz C‑Class and select models
Most Popular
A crowd favorite that many people choose with confidence
Bomunik Automatic Transmission Filter and Oil Pan Gasket Kit for Mercedes-Benz 722.9Bomunik Automatic Transmission Filter and Oil Pan Gasket Kit for Mercedes-Benz 722.9
Best Seller
A high-volume bestseller chosen again and again
A-Premium Transmission Oil Pan for Mercedes‑Benz C‑ClassA-Premium Transmission Oil Pan for Mercedes‑Benz C‑Class

1. Bomunik Transmission Oil Pan Set (8 Piece) for Mercedes-Benz 1998–2025

Bomunik Transmission Oil Pan Set (8 Piece) for Mercedes-Benz 1998–2025
Best Overall
An 8-piece replacement transmission oil pan and seal kit designed to fit a range of Mercedes-Benz models from 1998 to 2025 for straightforward replacement use.
Fitment rangeMercedes-Benz 1998-2025 C250 C300 C350 CL550 CLS550 E250 E300 E350 G550 GL350 ML350 S550 SL550 SLK350
Part number replaced2222700512 2202710380 0049903512 2212770100
Material TypeRubber
Item Shape8 Piece Set

This Bomunik 8-piece transmission oil pan set is a fitment-focused replacement package intended for Mercedes-Benz C‑Class and related models. The kit includes pans and seals sized to match the listed part references so you can drop the factory pan, replace the transmission filter, and install the new pan with a standard bolt pattern. Owners report the pans seal well and install easily when bolts are tightened in a crisscross pattern, which makes this a practical do-it-yourself option or a quick shop repair. The rubber material and kit approach prioritize installation clarity and day-to-day reliability rather than high-end upgrades like reinforced steel or integrated magnets. Expect a good value for routine pan replacement, but keep in mind this is a replacement-level part so longevity and finish may not match premium factory-quality pans. Confirm the part number against your vehicle before ordering to ensure correct fitment.

Best for: Balanced buyers who want a practical, value-focused replacement that makes transmission pan service easy for DIYers and independent shops.

Less Ideal for: Drivers seeking a heavy‑duty or showroom‑grade upgrade with premium materials and finish should consider higher-end aftermarket or factory-quality pans instead.

Pros:
  • Complete 8-piece kit simplifies a full pan and seal replacement
  • Designed for direct-fit installation on listed Mercedes-Benz models when matched to part numbers
  • Users report good sealing and straightforward installation procedure
  • Provides a cost-effective option for routine transmission pan replacement
Cons:
  • Replacement-grade construction may not match durability or finish of higher-end factory-quality pans
  • Kit requires confirming exact part number for proper fitment

Verdict: A budget-conscious, fitment-focused 8-piece transmission pan kit that makes routine replacement simple for Mercedes‑Benz C‑Class owners.

2. Mercedes-Benz Genuine Transmission Pan 2212701212

Mercedes-Benz Genuine Transmission Pan 2212701212
Best Quality
A factory-quality transmission pan designed as a direct replacement for select Mercedes-Benz C‑Class and related models.
ManufacturerMercedes-Benz
Model fitmentC300 C350e C43 AMG C63 AMG C63 AMG S GLE
Manufacturer Part Number2212701212
ExteriorSmooth

This genuine Mercedes‑Benz transmission pan is a direct replacement designed to restore factory fit and sealing on compatible C‑Class transmissions. Installed in place of a damaged or leaking pan, it provides a smooth exterior and correct mounting points so you can reuse existing sensors and drain fittings where applicable. As a factory part, it helps ensure proper alignment with the transmission case and reduces the risk of leaks that can arise from aftermarket dimensional differences. Practical benefits include simplified installation for experienced DIYers or shops and compatibility with original hardware and gaskets. Limitations are that it is a single component only and does not include gaskets, drain plugs, or hardware in the listing so you may need to source those separately; buyers should confirm exact model fitment before ordering because the part targets specific Mercedes‑Benz models rather than universal use.

Best for: Performance-oriented owners seeking factory-quality replacement parts who prioritize maintaining factory fit and reliability during transmission service or upgrades.

Less Ideal for: Buyers looking for a budget universal aftermarket pan or a complete hardware kit including gaskets and drain plug should consider other options.

Pros:
  • Factory-quality direct replacement for correct fit and alignment
  • Smooth exterior finish consistent with original appearance
  • Sold by Mercedes‑Benz store offering authentic manufacturer part
  • Simplifies installation when used with correct gasket and hardware
Cons:
  • Listing does not include gasket, drain plug, or mounting hardware
  • Fitment is limited to specified Mercedes‑Benz models and must be verified

Verdict: Choose this genuine Mercedes‑Benz transmission pan when you want a factory-quality, direct-fit replacement for supported C‑Class transmissions.

3. A-Premium Transmission Oil Pan with Drain Plug and Gasket for Select Mercedes-Benz

A-Premium Transmission Oil Pan with Drain Plug and Gasket for Select Mercedes-Benz
Best Value
A-Premium replacement transmission oil pan designed to fit select Mercedes-Benz models, supplied with a gasket and drain plug.
Product Gradelike new
Fit TypeVehicle Specific
Material TypeCast Iron
Gasket IncludedYes

This A-Premium transmission oil pan replaces the factory pan on a range of Mercedes-Benz models and is sold as a vehicle-specific replacement with gasket and drain plug included. It is a stamped steel pan with a corrosion-resistant painted finish and is intended for routine service or to repair leaks, low fluid level, or overheating related to a damaged sump. Installation is straightforward for a shop or experienced DIYer because it matches factory bolt locations and comes with the drain fitting already installed. The cast iron listing and steel references indicate a robust, heavier construction compared with thin stamped OE pans, which can improve durability but may require careful handling during fitment. Several owners report a good fit and no leaks, though some buyers noted issues with bent pans or gasket fit requiring extra sealant and that original bolts can be fragile and are worth replacing during the job. A one-year coverage on the part is offered by the brand for the cost of the item only.

Best for: Practical optimizers who want a direct-fit, budget-friendly replacement that solves leaks or worn pans without paying dealer prices and who prefer balancing cost and durability.

Less Ideal for: Buyers who expect a guaranteed perfect, dealer-level fit every time or who do not want to source replacement pan bolts and seals if needed should consider OEM parts or professional supply channels.

Pros:
  • Vehicle-specific fit for many Mercedes-Benz transmissions, simplifying installation
  • Includes gasket and drain plug so no additional parts are required for a basic replacement
  • Corrosion-resistant painted finish improves long-term durability compared with untreated pans
  • Heavier cast/steel construction offers a more robust replacement than some thin factory pans
Cons:
  • Some units arrived bent or with gasket fitment issues requiring sealant or dealer gasket replacement
  • Does not include extra pan bolts and some Mercedes bolts are known to break during removal

Verdict: A-Premium delivers a practical, vehicle-specific transmission pan replacement that includes the drain plug and gasket for a cost-effective repair.

4. A-Premium Lower Transmission Oil Pan Sump (fits Mercedes‑Benz C300 2015–2018, 2.0L)

A-Premium Lower Transmission Oil Pan Sump (fits Mercedes‑Benz C300 2015–2018 2.0L)
Best Budget
A-Premium replacement lower transmission oil pan designed to fit specified Mercedes‑Benz 2.0L models and restore the transmission fluid containment function.
Automotive Fit TypeVehicle Specific Fit
Part Interchange Info2740100313, V30-3392
MaterialSteel
Surface FinishCorrosion Resistance

This A-Premium transmission oil pan is a direct replacement-style sump intended for Mercedes‑Benz C300 (2015–2018) and related 2.0L models. It is made from steel with a corrosion-resistant surface finish and is offered as a professional replacement to address leaks, low fluid level, overheating, or excessive fluid consumption related to a damaged pan. The pan ships without a gasket or drain plug, so installation typically requires transferring those parts from the original pan or purchasing them separately. Its vehicle-specific fit and manufacturer part cross-references make it straightforward for mechanics to install as a like-for-like part. The one-year unlimited-mileage guarantee covers the cost of the item itself which provides short-term peace of mind, but labor and related repair costs are not covered. For budget-focused repairs it provides a cost-effective alternative to more expensive factory parts, though buyers should plan for additional small hardware or sealing materials during installation.

Best for: Budget-conscious owners seeking an affordable, vehicle-specific replacement part to get a C‑Class transmission back to service with minimal upfront cost and straightforward installation by a mechanic.

Less Ideal for: If you want a complete drop-in kit with new sealing hardware or prefer an OEM-branded pan with extended warranty support, this aftermarket pan may not meet those expectations.

Pros:
  • Vehicle-specific fit for Mercedes‑Benz 2.0L C300/GLC/E300 models which simplifies installation
  • Steel construction with corrosion-resistant finish for basic durability
  • Cross-referenced part numbers provided to aid correct replacement selection
  • One-year unlimited-mileage guarantee on the part itself
Cons:
  • No gasket or drain plug included so additional parts may be needed before installation
  • Limited warranty covers only the item cost and excludes labor or related repair expenses

Verdict: A-Premium offers a low-cost, vehicle-specific steel replacement transmission pan that lets budget-focused Mercedes‑Benz owners repair leaks without paying OEM prices.

5. EPPO Transmission Oil Pan (A7252703114) for Mercedes‑Benz C‑Class and select models

EPPO Transmission Oil Pan (A7252703114) for Mercedes‑Benz C‑Class and select models
Highest Rated
A factory-replacement transmission oil pan designed to fit specified Mercedes‑Benz models, manufactured with CNC precision to improve sealing and prevent fluid leaks.
ManufacturerEPPO
ModelTransmission Oil Pan
ExteriorPlastic
Manufacturer Part NumberA7252703114 7252703114
ASINB0FJ1GSY9Q

This EPPO transmission oil pan is a direct-fit replacement part targeted at Mercedes‑Benz C‑Class and other specified models. It replaces a damaged or leaking pan to restore proper transmission fluid containment and helps prevent low fluid level related problems. The pan is produced with CNC machining for accurate fitment and is sold as a professional replacement meant to match factory mounting points and sealing surfaces. Buyers benefit from improved sealing that can stop leaks and reduce the chance of overheating or premature fluid loss. The listing and some customer reports indicate it ships with gasket and bolts, which simplifies installation for a technician or competent DIYer. Limitations to note are that compatibility must be confirmed with your exact model and year before purchase and this is a replacement pan rather than a full service kit with filter or fluid included. The one year warranty and responsive seller support provide added reassurance for reliability-focused owners.

Best for: Reliability-focused buyers who prioritize restoring factory-level sealing and fixing transmission fluid leaks to avoid further drivetrain damage; ideal for owners who prefer durable aftermarket replacements over temporary repairs.

Less Ideal for: Not suitable for buyers seeking a full transmission service kit that includes filter and fluid or for those who have not confirmed exact model fitment and prefer plug-and-play guaranteed-fit parts.

Pros:
  • CNC machined for precise, close OEM-style fitment
  • Designed to address oil leaks and improve sealing performance
  • Listed compatibility with many Mercedes‑Benz C‑Class and related models
  • Includes gasket and bolts in some listings to simplify installation
  • One-year warranty and seller support for post-purchase assistance
Cons:
  • Does not include transmission filter or fluid so additional parts are often required for a full service
  • Compatibility varies by model year so verification is necessary before installation

Verdict: A precision-machined, factory-replacement transmission pan aimed at stopping leaks and restoring reliable fluid containment on compatible Mercedes‑Benz models.

6. Bomunik Automatic Transmission Filter and Oil Pan Gasket Kit for Mercedes-Benz 722.9

Bomunik Automatic Transmission Filter and Oil Pan Gasket Kit for Mercedes-Benz 722.9
A replacement transmission filter and oil pan gasket kit designed for Mercedes-Benz 722.9 applications that includes pan gasket, filter and hardware for a transmission service.
BrandBomunik
Model2202710380
Manufacturer Part Number2202710380
Item model number2212770100TZ2

This Bomunik kit supplies the parts needed to service the 722.9 automatic transmission on select Mercedes-Benz C‑Class models: a transmission filter, pan gasket and a set of pan bolts and seals. It is intended for a routine fluid and filter change and arrives as a full kit so you can complete the job without sourcing separate parts. Practical benefits include clear fitment targeting, a complete hardware set for a drain and reinstall, and straightforward installability for a DIYer or technician. Several buyers report the supplied stretch bolts are weaker than factory bolts, so many installers reuse OEM pan bolts or torque to factory spec to avoid breakage. Fitment guidance and part numbers are provided to confirm compatibility before ordering. Expect a good value for routine maintenance when you check bolt quality and have basic tools; if you need factory-grade fasteners or are uncomfortable with modest fitment variations, plan for sourcing stronger replacement bolts.

Best for: Convenience-driven owners who want a ready-made service kit to perform a scheduled transmission fluid and filter change without pulling separate parts from multiple suppliers.

Less Ideal for: Shoppers who insist on factory-grade fasteners or who prefer fully OEM-sourced kits should consider alternatives or plan to reuse original pan bolts.

Pros:
  • Complete kit includes transmission filter, gasket and installation hardware for a single service
  • Targets Mercedes‑Benz 722.9 transmission fitment with listed part references for easier confirmation
  • Saves time by bundling all commonly replaced components for a drain-and-replace service
Cons:
  • Some supplied pan bolts have been reported as low strength and may break under proper torque
  • O‑ring on the filter may require swapping if size differs from OEM

Verdict: A ready-to-install transmission filter and pan gasket kit that simplifies scheduled maintenance on Mercedes‑Benz 722.9 transmissions.

7. A-Premium Transmission Oil Pan for Mercedes‑Benz C‑Class

A-Premium Transmission Oil Pan for Mercedes‑Benz C‑Class
Best Seller
A replacement transmission oil pan designed to fit many Mercedes‑Benz C‑Class and related models and restore a factory-style sump and drain plug function.
Compatible modelsMercedes‑Benz C230/C250/C280/C300/C350/C350e/C400/C43/C450/C63 (various years)
Material TypeCast Iron
Fit TypeVehicle Specific
Drain plugIncluded

This A-Premium transmission oil pan replaces the factory pan on compatible Mercedes‑Benz C‑Class models and similar vehicles, providing a direct-fit sump and threaded drain plug for easier fluid changes. It is typically used during transmission service or when repairing a damaged pan. The pan is cast aluminum with a corrosion-resistant finish and ships new with a drain plug included; a gasket is not supplied so you will need to reuse the factory gasket or buy a replacement. The construction appears robust for workshop handling and supports wet sump installations on 722.9 family transmissions referenced for many C‑Class years. Practical benefits include easier draining with the plug and a corrosion-resistant surface that helps longevity in road conditions. Limitations are that no gasket is included and finish details such as painted plug area are utilitarian rather than factory-polished, so expect some cosmetic differences versus a factory replacement. Installation requires standard transmission service procedures and may need professional fitting for buyers uncomfortable with underbody work.

Best for: Risk-averse mainstream buyers who prioritize a reliable, direct-fit replacement that restores normal serviceability to their C‑Class transmission without experimental modifications.

Less Ideal for: Buyers seeking an exact cosmetic match to factory appearance or a complete service kit with gasket and hardware included should consider alternative options.

Pros:
  • Vehicle-specific fit for many Mercedes‑Benz C‑Class models, simplifying compatibility checks.
  • Cast aluminum construction with a corrosion-resistant finish for durability in service environments.
  • Includes a threaded drain plug to make transmission fluid changes easier.
  • Designed for wet sump transmission use common to the 7G‑Tronic (722.9) family.
Cons:
  • Gasket is not included, so buyers must source a proper gasket separately.
  • Painted finish and plug area are utilitarian and may not match factory appearance.

Verdict: A practical, vehicle-specific transmission pan that restores serviceability for many Mercedes‑Benz C‑Class cars but requires a separately purchased gasket and may differ cosmetically from factory panels.

Choosing the Right Mercedes-Benz C-Class Transmission Pan: Key Factors to Consider

Fitment and Bolt Pattern

Accurate fitment is fundamental because the pan must align with the transmission housing and bolt holes to form a proper seal. A mismatched bolt pattern or incorrect flange dimensions can cause uneven gasket compression, leading to leaks and potential transmission damage.

When evaluating fitment, look for pans specified for the exact vehicle model and transmission code. Consider whether the pan comes with the correct hardware or requires reusing factory bolts, as differences in bolt length or thread engagement can affect sealing and torque specs.

Material and Construction

The pan material affects durability, heat dissipation, and susceptibility to corrosion. Stamped steel pans offer toughness and impact resistance, while aluminum pans can improve heat transfer and reduce weight.

Inspect construction details like reinforcement ribs, weld joints, and surface finish. Heavier-gauge materials and robust welds resist deformation during installation and service, which helps maintain a consistent sealing surface over time.

Sealing System and Gasket Compatibility

A reliable sealing system minimizes the chance of transmission pan leaks and reduces maintenance frequency. Some pans use molded rubber gaskets, others rely on cork or silicone, and some designs have integrated sealing beads.

Ensure the pan design is compatible with the recommended gasket type and that the mating flange is flat and free of machining irregularities. Consider whether the pan includes a replacement transmission pan gasket or requires a separate purchase, since a fresh gasket can improve sealing after a drop transmission pan service.

Service Features and Drain Options

Convenient service features make routine transmission fluid change pan procedures simpler and cleaner. Integrated drain plugs or magnetic drain plugs allow fluid removal without fully dropping the pan, which reduces mess and lowers the chance of contaminating the transmission with debris.

Evaluate whether the drain plug uses a standard thread size and includes a washer or sealing ring. Also consider internal baffling or sump shape that affects fluid return and whether the pan design provides clearance for access to transmission internals during service.

Corrosion Resistance and Finish

Corrosion-resistant coatings and finishes extend the life of the pan, especially in climates where road salt or moisture are common. Zinc plating, powder coat, or anodizing on aluminum help prevent pitting and rust that can lead to leaks over time.

Check for protective finishes on both the exterior and mating flange areas. A durable finish reduces the need for early replacement and helps maintain a reliable seal with the transmission pan gasket.

Ease of Installation and Torque Guidelines

Ease of installation reduces the risk of installation errors that can cause leaks or damage. Pans that include clear torque specifications or come with properly sized hardware help ensure even flange compression when tightening bolts.

Be aware that transmission pan torque specs are important; uneven or over-tightened bolts can warp the flange or crush the gasket. Confirm whether the pan includes installation instructions and recommended torque values to avoid common pitfalls during a drop transmission pan procedure.

How We Chose the Best Mercedes-Benz C-Class Transmission Pan

We prioritized pans designed specifically to match Mercedes-Benz C-Class transmission housings and bolt patterns, focusing on dimensional accuracy and secure sealing to minimize leak risk. Material and construction were weighted heavily, with attention to stamped steel versus aluminum pans, reinforcement ribs, and weld quality to determine long-term durability and heat dissipation. Serviceability features factored into selections, such as integrated drain plugs, reusable magnetic drain plugs, and access for transmission fluid change procedures. Gasket interface quality and mounting flange flatness were evaluated to reduce the likelihood of transmission pan gasket failures and to ensure consistent torque retention. Compatibility checks emphasized direct-fit designs and hardware inclusion to avoid fitment issues during drop transmission pan service. We excluded pans lacking clear fitment data, pans intended for multiple unrelated models without verification, and units with questionable construction or missing sealing hardware. The final picks balance reliable fitment, service convenience, corrosion resistance, and thermal performance.

Our full evaluation process is outlined in our review methodology.

FAQ

How often should I inspect the transmission pan on a Mercedes-Benz C-Class?

Inspect the transmission pan during routine maintenance intervals or when you notice fluid spots under the vehicle. Visual checks can reveal leaks, loose bolts, or corrosion before they become serious. If you drop the pan for a fluid change, also inspect the mating surface and gasket for signs of wear.

Can I replace the transmission pan gasket myself on a C-Class?

Many owners can replace the transmission pan gasket themselves with basic tools and proper safety precautions. The job typically involves draining fluid, removing the pan, cleaning mating surfaces, and installing a new gasket to manufacturer torque specifications. If you are unsure about torque specs or sealing surfaces, consult a repair manual or a professional.

Is a pan with a drain plug worth choosing for this car?

A pan with a drain plug often makes routine transmission fluid change pan procedures cleaner and faster by allowing partial fluid removal without dropping the pan. It reduces mess and can extend the time between full pan removals, but you should still follow service intervals and inspect the pan for debris and magnetized metal.

What causes a transmission pan leak on a Mercedes-Benz C-Class?

Leaks commonly stem from degraded gasket material, uneven flange surfaces, loose or missing bolts, or corrosion in the pan itself. Less commonly, internal damage or over-pressurization can force fluid past the sealing surface. Regular inspection and proper installation torque help reduce leak risk.

Do aftermarket pans affect transmission cooling?

Aftermarket pans made from materials with better thermal conductivity, such as aluminum, can help dissipate heat more effectively than standard stamped steel pans. However, overall cooling depends on the pan design, surface area, and transmission cooling system as a whole. Look for pans with design features aimed at improving thermal performance if cooling is a priority.

Conclusion

When selecting a Mercedes-Benz C-Class transmission pan, prioritize accurate fitment, a reliable sealing system, and construction that resists corrosion and deformation. Service features like a drain plug and clear torque guidance can reduce maintenance time and lower the chance of installation errors. Balance the importance of material and heat dissipation against ease of service and long-term sealing reliability. Focusing on those tradeoffs will help you choose a pan that fits the way you maintain and drive your C-Class.

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Mike - Certified Professional Automotive Mechanic

About the Author: Mike

Mike is an experienced professional automotive mechanic with hands-on experience maintaining and repairing a wide range of vehicles. At VehicleRuns, he focuses on helping car owners make better decisions about parts, tools, and repairs by combining real-world experience with clear, practical guidance.