Mercedes W169 M266 Oil Filler Neck Pipe Hose Tube Cap A2660100464

Description

Mercedes W169 M266 Oil Filler Neck Pipe Hose Tube Cap is an original lubrication system component designed for M266 series engines in A-Class W169 models. It ensures secure oil delivery to the engine and stable mounting of the filler cap, which facilitates maintenance and reduces the risk of contamination. Thanks to its factory design, it fits factory mounting points, supporting trouble-free installation and maintaining system tightness.

Specifications and technical data

• SKU: A2660100464-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2660100464
• Substitutable numbers: A2660100464, A 266 010 04 64
• Category: Oil Drain Plugs, Filler Caps & Dipsticks

Purpose and function in the lubrication system

The oil filler neck pipe with cap is responsible for the safe delivery of engine oil to the M266 power unit without the need to disassemble other components. This element:

• guides oil in a controlled manner, minimizing the risk of spills during top-ups,
• ensures stable seating of the filler cap, which limits the ingress of contaminants into the engine,
• supports the maintenance of proper pressure and tightness in the upper part of the lubrication system.

Due to its fitment to the specific geometry of the W169 engine bay, maintenance becomes more convenient, and access to the oil filler is intuitive even in tightly packed spaces.

Construction and fitment for Mercedes W169 M266

The oil filler pipe with cap in question has been designed for M266 units, which means compatibility with factory brackets and routing in the engine bay. The pipe construction includes:

• appropriate shape and length, matched to the M266 engine architecture,
• integrated filler cap socket, facilitating quick unscrewing and tightening,
• placement of mounts allowing for stable attachment without additional modifications.

Such a solution promotes the preservation of factory ergonomics and reduces the time required to replace a damaged pipe during repairs.

Technical category and service application

The element belongs to the Oil drain and filler caps and dipsticks group, i.e., components responsible for engine oil handling – its replacement, level checking, and safe refilling. In workshop practice, the oil filler neck pipe with cap is replaced, among other things, in the case of:

• mechanical damage to the pipe (cracks, deformations),
• problems with closing the filler cap,
• leaks in the vicinity of the oil filler.

Using an original solution allows for maintaining consistency with other lubrication system elements and reduces the risk of incorrect installation.

Product characteristics and condition

The offered oil filler pipe with cap comes from dismantling, which means it is a used part, but still intended for further use after proper installation. For many Mercedes W169 users, this is a reasonable cost-effective solution, allowing for the preservation of the original specification while limiting expenses. Choosing such a component is particularly beneficial for maintenance repairs, where structural and functional compliance is important.

Technical support and additional materials

To better understand the impact of proper oil handling and operating temperature on the service life of the power unit, it is worth reading the guide material regarding the cooling and lubrication system – you will find it in the article Engine cooling system – overheating, repair and used radiators, which discusses, among other things, the importance of stable engine operating conditions in the context of durability.

If you are planning a comprehensive repair or modernization of the engine area in your Mercedes and need other elements from the same group, such as oil drain plugs, filler caps, or dipsticks, check the available parts in the Mercedes oil drain and filler caps and dipsticks category.

Summary

Mercedes W169 M266 Oil Filler Neck Pipe Hose Tube Cap is a practical solution for users and workshops that want to restore full functionality of the oil filler system in the M266 engine while maintaining factory fitment. The original design, compatibility with the engine bay geometry, and belonging to a specialized technical category make it a component that fits well into professional repairs and maintenance of Mercedes A-Class W169 vehicles.