Mercedes W163 W202 W210 Engine Cover Crankcase Ventilation Valve A1120100167

Mercedes W163 W202 W210 Engine Cover Crankcase Ventilation Valve is an original component from the Tappet and Valve Covers group, designed for Mercedes engine units in the W163, W202, and W210 series. The cover is responsible for tightly sealing the upper part of the engine in the crankcase ventilation area, stabilizing the unit's operation and preventing contaminants from entering the interior. It is a practical solution for users who want to maintain the factory engine design and ensure proper oil vapor discharge.

Specifications and technical data

• SKU: A1120100067
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1120100067
• Substitutable numbers: A1120100067, A 112 010 00 67, A1120100167, A 112 010 01 67
• Part type: Valve Cover
• Category: Rocker & Valve Covers

Purpose and function in the engine system

The engine cover in the crankcase ventilation valve area plays a key role in maintaining proper crankcase pressure and separating oil vapors. In Mercedes W163, W202, and W210 models, this component works with the crankcase ventilation system, which contributes to:

• stable operation of the engine unit across various RPM ranges,
• limiting oil leaks in the cylinder head area,
• reducing intake contamination and deposits in the manifold,
• maintaining proper engine performance over the long term. By maintaining the original geometry and mounting points, the cover ensures proper vapor routing and compatibility with the factory ventilation valve.

Application in Mercedes vehicles

The component was designed specifically for selected versions of the Mercedes M, C, and E-Class of the W163, W202, and W210 generations. This means it fits the factory engine bay architecture, aligns correctly with the cylinder head, and works with standard hoses and accessories. Using the original cover allows you to maintain:

• structural consistency with other engine unit components,
• proper routing of ventilation channels and vacuum lines,
• easier diagnostics of potential leaks in the future. For users who value original Mercedes solutions, choosing this cover is a way to remain compliant with service documentation and the parameters specified by the manufacturer.

Component characteristics and benefits of installation

The cover from the Tappet and Valve Covers group was designed as an integral part of the upper engine section, taking into account the thermal and mechanical loads occurring in this area. Installing this component allows you to:

• restore tightness in the cylinder head area after cracking or deformation of the old cover,
• limit blow-by and the suction of false air into the intake system,
• reduce oil contamination in the engine bay,
• maintain an aesthetic and orderly appearance of the upper part of the engine unit. This solution is particularly useful when servicing the ventilation system, replacing seals, or restoring the efficiency of a unit after long-term operation. Original Mercedes origin promotes the maintenance of proper durability and compatibility with factory equipment.

Component condition and installation aspects

The offered cover is a used product, which allows you to combine reasonable cost with maintaining the manufacturer's original specifications. Before installation, standard service procedures are recommended, such as checking the contact surface, verifying the seal, and checking the interaction with the existing ventilation valve and hoses. Thanks to the factory mounting points and fitment to the cylinder head, installation proceeds in a predictable manner for the mechanic, without the need for engine structure modifications. This is a practical solution for both routine repairs and comprehensive engine unit maintenance.

Service expansion within covers and valve systems

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional covers, seals, or mounting elements, check the available parts in the Mercedes Tappet and Valve Covers category. When planning broader service work, it is also worth learning the arguments for choosing original components from dismantling instead of the cheapest replacements – you can find more on this topic in the article The most popular repairs in Ford cars: why cheap replacements are a false economy and it is better to choose a used original?, the conclusions of which can also be applied to vehicles of other brands, including Mercedes.