Mercedes W169 M266 Oil Filler Neck Pipe Hose Tube Cap A2660100464

The MERCEDES W169 M266 Oil Filler Neck with Cap is an original engine system component designed for M266 series units in W169 A-Class models. Its factory-designed construction ensures reliable oil flow into the engine and convenient service access, facilitating regular maintenance and lubricant level checks.

Specifications and technical data

• SKU: A2660100464
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2660100464
• Substitutable numbers: A2660100464, A 266 010 04 64
• Category: Air Intake & Fuel Sensors

Purpose and Function of the Oil Filler Neck

The MERCEDES W169 M266 Oil Filler Neck with Cap is responsible for safely delivering engine oil to the power unit and for securely sealing the system with a fitted cap. This component is crucial for:

• maintaining the correct oil level in the M266 engine,
• minimizing the risk of leaks around the filler area,
• providing a convenient service point for topping up and oil changes.

Thanks to its construction adhering to factory standards, the mounting geometry and neck diameter are precisely matched to the engine system in the Mercedes A-Class W169, ensuring trouble-free installation.

Compatibility and Technical Category

This part belongs to the Air and Fuel Intake Sensors category, which in the catalog structure signifies its affiliation with components related to the fuel system and engine management. In practice, the oil filler neck with cap works with:

• the upper part of the M266 engine block,
• engine accessories responsible for lubrication,
• the engine cover and compartment elements that require precise routing of the neck.

This ensures the integrity of the entire lubrication system, and access to the filler remains ergonomic, even within the densely packed engine bay of the W169 model.

Characteristics of an Original Mercedes Part

The oil filler neck with cap comes from the line of original Mercedes components, meaning it complies with the manufacturer's factory standards regarding material, shape, and mounting method. Compared to aftermarket alternatives:

• it ensures predictable fitment to the M266 engine,
• it reduces the risk of leaks around the cap and connections,
• it maintains the factory routing of the neck within the engine bay, simplifying servicing.

As a used component, this part is an excellent choice for users who wish to maintain the original vehicle specification while optimizing repair or replacement costs.

Why Use This Oil Filler Neck

Using an original oil filler neck with cap in the M266 engine allows for the restoration of proper oil servicing conditions after damage, cracking, or wear of the previous component. Replacement is particularly recommended when:

• oil leaks have appeared around the filler area,
• the cap no longer provides adequate sealing,
• the neck has been mechanically damaged during previous service work.

By retaining the factory shape and mounting points, you can expect stable neck routing and no interference with other accessories in the engine bay.

Related Products and Technical Knowledge

If you are looking for other components in the Mercedes Air and Fuel Intake Sensors category, check out the Mercedes Air and Fuel Intake Sensors available in our store to select components that are compatible with your car's fuel system.

When working on the fuel system and engine maintenance, it is beneficial to expand your knowledge of diagnostics and operation. The article Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair may be helpful, offering practical tips on selecting parts by OEM numbers and the principles of proper system maintenance.

For drivers interested in the broader use of dismantled components, the article Used Mercedes Parts – Original Components from Dismantling will also be useful, describing the benefits of choosing original, used parts for this brand of car.