Timing Shaft Mercedes W203 A209 W211 M112 Balancing Camshaft A1120301472

Mercedes W203 A209 W211 M112 Camshaft is a precision timing system component designed for M112 series gasoline engines, used in popular Mercedes C-Class, E-Class, and CLK models. This component, from the Camshafts category, is responsible for precise valve operation control, which translates to stable engine operation and proper dynamics. Choosing an original Mercedes camshaft helps maintain the engine's factory performance parameters and reduces the risk of incorrect synchronization.

Specifications and technical data

• SKU: A1120301472
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1120301472
• Substitutable numbers: A1120301472, A 112 030 14 72, A1120520802, A 112 052 08 02, A1120841122, A 112 084 11 22
• Location on the vehicle: Front
• Fuel type: Petrol
• Category: Camshafts

Purpose and Function in the M112 Engine

The presented camshaft is dedicated to M112 gasoline engines installed in Mercedes W203, A209, and W211 models, where it operates at the front of the timing system. Its task is to mechanically control the opening and closing of valves at the appropriate phases of the engine's operating cycle, which directly impacts performance, fuel consumption, and emissions.

By maintaining the correct lobe profile and geometry, the camshaft ensures:

• correct synchronization of valve operation with piston position,
• stable idle operation,
• repeatable filling parameters of cylinders with the fuel-air mixture,
• safe cooperation with the factory engine control unit.

Benefits of Using an Original Mercedes Camshaft

Using an original camshaft in the M112 engine allows for maintaining the factory operating characteristics of the power unit. This component has been specifically designed for the loads encountered in Mercedes gasoline engines, which translates to appropriate fatigue resistance and proper lubrication of the working surfaces.

Key advantages include:

• Compatibility with the factory timing system – no need for modifications to additional components.
• Stable engine operating parameters – maintaining the timing phases specified by the manufacturer.
• Possibility of using existing reference points when setting the timing.
• Consistency with the factory engine control unit software.

Installation and Operational Characteristics

The camshaft, designed for installation at the front of the engine, requires precise alignment with the marks on the timing gears and crankshaft. Correct installation is crucial for engine safety, so it is recommended to perform this operation according to Mercedes service documentation or entrust it to a specialized workshop.

During operation, it is important to use the correct engine oil and change it regularly, which reduces wear on the working surfaces of the lobes and plain bearings. Maintaining proper oil pressure and clean lubrication channels contributes to the long-term, repeatable operation of the camshaft and the entire timing system.

Component Condition and Service Application

The offered camshaft is a used part, making it an attractive solution for servicing M112 engines in Mercedes W203, A209, and W211 vehicles, especially for budget repairs or restoring older models. This type of component is often chosen as a replacement in cases of worn lobes, mechanical damage, or incorrect timing operation due to excessive play in the system.

Before installation, it is recommended to verify the condition of cooperating components – lifters, timing chain, tensioners, and sprockets – to ensure consistent and safe operation of the entire system. Selecting the correct camshaft for a specific M112 engine version helps avoid problems with starting, power loss, or uneven engine operation.

Expanding Repair Scope and Service Knowledge

If you are planning a comprehensive engine repair or upgrade for your Mercedes and need other parts from the same group, such as additional camshafts, timing gears, or variable valve timing components, check the available parts in the Mercedes Camshafts category.

To maximize the potential of used components and extend their reliable operation, it is worth familiarizing yourself with practical tips on maintenance and operation, which you can find in the article How to Extend the Lifespan of Used Car Parts?.