Mercedes-Benz A C E W168 W169 W203 W212 Cap Cover Oil Filler Pipe A1402700091

Mercedes-Benz A C E W168 W169 W203 W212 Cap Cover Oil Filler Pipe is an original lubrication system component designed for Mercedes models, ensuring a tight seal of the oil filler opening and stable engine operation. This used cap is a practical choice for engine maintenance when the existing component is worn, damaged, or leaking.

Specifications and technical data

• SKU: A1402700091
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1402700091
• Substitutable numbers: A1402700091, A 140 270 00 91
• Category: Oil Drain Plugs, Filler Caps & Dipsticks

Purpose and technical function

The presented oil filler cap is designed as a component of the lubrication system in Mercedes A-Class and C-Class vehicles, including the W168, W169, and W203 generations. Its task is to maintain proper sealing of the engine oil filler, which reduces the risk of leaks and prevents contaminants from entering the engine unit.

A properly selected oil cap contributes to:

• stable pressure in the lubrication system,
• oil cleanliness and protection against dust and moisture,
• trouble-free operation during periodic oil changes.

Benefits of using an original Mercedes oil cap

The original oil filler cap for Mercedes ensures a proper fit to the valve cover and thread of the specific engine, minimizing the risk of leaks. Thanks to its factory geometry and carefully selected materials, the component works with the factory lubrication system without the need for modifications.

The main advantages include:

• secure fit with the cylinder head – no play or tightening issues,
• compatibility with factory seals,
• easy installation and removal during service maintenance.

Performance characteristics and installation

The used oil cap for Mercedes is an economical solution that maintains the mounting parameters specified by the manufacturer. The component can be installed during standard service maintenance without specialized tools, which reduces vehicle downtime.

In practice, this means that:

• installation takes place in the location of the factory cap,
• there is no need to modify the valve cover,
• operation is limited to proper tightening and periodic leak checks.

Condition and service application

The used condition makes this oil filler cap an attractive alternative to new aftermarket replacements, especially for maintenance repairs and service cost optimization. It is a good solution when replacing a damaged or lost cap, especially if you want to maintain the original manufacturer's specifications.

Combined with properly selected engine oil and regular service, such a component helps maintain correct operating conditions for the engine unit and reduces the risk of uncontrolled leaks.

Knowledge expansion and component selection

To better understand the impact of proper engine and accessory maintenance on engine durability, it is worth checking out the guide on cooling and lubrication systems – detailed information can be found in the article Engine cooling system – overheating, repair, and used radiators.

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