Mercedes W211 W212 W221 Engine Oil Sump Pan Upper Part M273 Petrol R2730140602

Mercedes W211 W212 W221 Oil Pan Upper M273 Gasoline R2730140602 is an original lubrication system component designed for M273 gasoline engines in Mercedes' premium class models. The upper part of the oil pan is responsible for stable oil flow, proper block sealing, and secure mounting of other engine components. Thanks to its factory design, it ensures precise fitment, correct oil circulation, and maintenance of the powertrain unit's operating parameters.

Specifications and technical data

• SKU: A2730142202
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2730142202
• Substitutable numbers: A2730142202, A 273 014 22 02, R2730140602, R 273 014 06 02
• Fuel type: Petrol
• Part type: Oil Sump
• Category: Oil Sumps

Purpose and Function in the Lubrication System

The upper oil pan in the M273 engine plays a crucial role in the engine bay area, forming a rigid base for the lower part of the oil pan and oil channels. It is responsible for:

• maintaining the correct oil volume in the engine's working zone,
• stable oil flow to the pump and lubrication channels,
• ensuring a seal between the block and the lower part of the oil pan,
• maintaining the mounting geometry of accessory components.

A properly selected upper oil pan reduces the risk of oil pressure drops, which translates to safe operation of the gasoline unit and reduced wear of moving parts.

Compatibility with M273 Gasoline Engine

The presented upper oil pan is designed to work with the M273 gasoline engine, used in Mercedes E-Class and S-Class models. The design is adapted to the specifics of the gasoline-powered unit, including the arrangement of oil channels, mounting points, and block shape.

Thanks to this, the component ensures:

• compliance with the engine's factory geometry,
• correct oil flow under high load conditions,
• stable operation of the lubrication system during dynamic driving.

Component Characteristics and Installation Advantages

As part of the Oil Pans group, the upper oil pan for Mercedes has been manufactured using the technology specified by the vehicle manufacturer, which facilitates installation in place of a worn or damaged component. The design includes factory mounting points, allowing for:

• installation without structural modifications,
• maintenance of the original engine assembly rigidity,
• correct positioning of seals and mounting bolts.

The used nature of the part allows for economical repair while maintaining the original manufacturer's specifications, which is particularly important for advanced Mercedes gasoline units.

Practical Application and Operational Safety

Replacement of the upper oil pan is recommended in situations where cracks, deformations, or leaks affecting oil pressure occur. A properly selected component helps to:

• reduce oil leaks from the engine block area,
• maintain stable pressure in the lubrication system,
• protect the engine from seizure due to insufficient lubrication.

For workshops and private users, this means the possibility of carrying out a professional lubrication system repair without compromising on fitment and functionality.

If you are planning a comprehensive repair or upgrade of the engine bay in your Mercedes and need other parts from the same group, such as lower oil pan sections, seals, or mounting components, check the available parts in the Mercedes Oil Pans category.

Additional Technical Support

When planning major powertrain repairs, it is worth paying attention to the relationships between individual sub-assemblies, such as the engine, gearbox, and lubrication system. To better plan the scope of work and costs, a guide on the cost-effectiveness of using used parts may be helpful – more information can be found in the article Used Gearbox – When is it Worth It and What You Need to Remember.