Mercedes CL203 C208 W208 CLK 320 Engine Rocker Cover M112 Petrol A1120160305

Mercedes CL203 C208 W208 CLK 320 Engine Rocker Cover M112 Petrol is an original component from the Tappet and valve covers group, designed for M112 series petrol engines in Mercedes CLK models. This used cover ensures a factory-fit to the cylinder head, stable sealing of the valve chamber, and maintains the original operating parameters of the powertrain.

Specifications and technical data

• SKU: A1120160305
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1120160305
• Substitutable numbers: A1120160305, A 112 016 03 05
• Fuel type: Petrol
• Category: Rocker & Valve Covers

Purpose and technical function

The valve cover in the M112 engine is responsible for tightly sealing the space above the timing system and tappets, as well as managing oil flow in the upper part of the unit. A properly selected component reduces leaks, stabilizes lubrication conditions, and helps maintain cleanliness in the engine bay. For petrol units, using a dedicated cover is crucial for maintaining the correct operation of the timing system and the durability of the seals.

Compatibility with M112 petrol engine

The presented cover has been designed for Mercedes M112 family petrol engines, used in models such as the CLK series CL203, C208, and W208 320. This ensures the preservation of the original geometry, correct placement of mounting points, oil channels, and sockets for associated components, which translates into trouble-free installation and proper cooperation with other powertrain components.

Performance characteristics and installation

The valve cover from this series is structurally matched to the factory engine cylinder head layout, making the installation process predictable and repeatable. The used component allows for an economical repair of oil leaks or the replacement of a damaged housing without interfering with other sub-assemblies. With the correct selection of a gasket and adherence to service procedures, it is possible to restore the tightness of the upper part of the engine and reduce contamination in the engine bay.

Benefits of using an original cover

Using an original valve cover in the M112 engine ensures:

• factory fit to the cylinder head and timing system,
• stable sealing of the valve chamber,
• proper oil flow in the upper part of the unit,
• maintenance of the original operating parameters of the petrol engine.

For users who prioritize consistency with Mercedes factory specifications, choosing an original cover is a technically safe and predictable solution for operation.

Mercedes Tappet and valve covers – expansion and service

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, mounting hardware, or complementary shields, check the available parts in the Mercedes Tappet and valve covers category.

Technical knowledge and exhaust system operation

When working on the engine, it is also worth paying attention to the exhaust gas recirculation system, which affects the operating temperature of the unit and its overall refinement. To better understand the relationships between engine components and the emission control system, the following article will be helpful: EGR: what it is and why it is worth considering used EGR valves.

For those interested in a broader context of technical solutions used by the manufacturer, including the evolution of powertrains and accessories in subsequent generations, we also recommend the following material: Evolution of the Mercedes S-Class: from W140 to W222 – innovations, model differences, and Mercedes auto parts over the years, which allows for a better understanding of the brand's design philosophy and approach to engineering key engine components.