Oil Pipe Mercedes W177 Automatic Transmission Oil Filler Pipe A7003700200

The Mercedes W177 Automatic Transmission Oil Filler Neck is an original component of the gearbox service system, designed for servicing automatic transmissions. The precisely selected geometry of the neck ensures proper guidance of the transmission oil during refilling and servicing, supporting stable gearbox operation and reducing the risk of leaks. This is a practical solution for users who want to maintain the factory configuration of the drivetrain in their Mercedes W177.

Specifications and technical data

• SKU: A7003700200
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A7003700200
• Substitutable numbers: A7003700200, A 700 370 02 00
• Gearbox type: Automatic
• Category: Other Engine Parts

Purpose and Function in the Drivetrain

The Mercedes W177 Automatic Transmission Oil Filler Neck is responsible for the safe delivery of transmission oil to the gearbox housing during maintenance. The appropriately shaped cross-section and fitted ends help maintain the seal of connections and reduce the risk of oil spills in the engine bay.

This component is particularly important in vehicles with automatic transmissions, where the correct oil level and cleanliness directly affect:

• smooth gear changes,
• stability of mechatronics and clutch operation,
• reduction of gearbox overheating,
• extended lifespan of the entire drivetrain.

Technical Characteristics and Fitment

The neck has been designed specifically for use in the W177 model with an automatic transmission, ensuring proper routing of the hose relative to other components in the engine bay. The appropriate shaping and mounting points prevent collisions with other elements, such as cooling hoses, electrical harnesses, or drivetrain suspension components.

The original origin of the part means that the neck complies with the manufacturer's factory standards regarding:

• resistance to the operating temperature of transmission oil,
• resistance to chemicals used in servicing,
• dimensional stability during long-term operation.

Condition, Service Application, and Benefits of Installation

The offered oil filler neck comes from the Other category, making it a practical choice for comprehensive repairs or drivetrain upgrades. The used nature of the component allows for economical restoration of the factory configuration without the need to resort to aftermarket parts with uncertain parameters.

Replacement of the oil filler neck is recommended in situations where:

• the existing component shows signs of mechanical damage or deformation,
• leaks are present around the gearbox oil filler,
• major servicing work is being carried out on the automatic transmission and prophylactic replacement of auxiliary components is recommended.

A correctly selected neck facilitates servicing, reduces the risk of engine bay contamination with oil, and supports the maintenance of proper gearbox operating parameters.

Integration with Other Components and Technical Knowledge

The drivetrain in modern cars like the Mercedes W177 forms a cohesive system including the engine, gearbox, cooling system, and control elements. Maintaining the correct oil level in an automatic transmission is as important as selecting appropriate engine components or associated systems. For comparative purposes, it is worth reviewing solutions used in other brands and sports versions – this is discussed in detail in the article Audi RS vs. Other Models – What Lies Under the Hood and Chassis?, which shows how drivetrain design affects durability and driving characteristics.

Other Products in This Category and Brand

If you are also looking for other components from the Other category dedicated to this brand, check out our offer, where you will find a wide selection of Mercedes Other Parts – this is a convenient way to select compatible auxiliary components for your car.