Mercedes W204 W212 Engine Exhaust Valve Camshaft Adjuster M272 M273 A2720500478

Mercedes W204 W212 Exhaust Camshaft Adjuster M272 M273 is an original camshaft system component designed for gasoline engines, responsible for precise control of camshaft phases on the exhaust side. Thanks to its factory design, the camshaft adjuster ensures proper engine operation, stable running characteristics, and correct performance. A used OEM component allows for a technically sound repair without the need to resort to cheaper aftermarket alternatives with uncertain parameters.

Specifications and technical data

• SKU: A2720500478
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2720500478
• Substitutable numbers: A2720500478, A 272 050 04 78
• Fuel type: Petrol
• Category: Valve Guides, Springs & Parts

Purpose and Technical Function

The Mercedes W204 W212 Exhaust Camshaft Adjuster M272 M273 operates in the variable valve timing system on the exhaust side in gasoline engines. Its function is to control the camshaft position based on load and engine speed, which affects:

• correct cylinder filling and emptying with exhaust gases,
• stable engine operation across the entire RPM range,
• maintenance of factory power and torque parameters,
• reduction of fuel consumption and exhaust emissions.

This component works in conjunction with the engine control system, so its proper functioning directly impacts the correct operation of the entire camshaft system.

Benefits of Using an Original Adjuster

Using an original camshaft adjuster in M272 and M273 engines offers a range of practical service benefits:

• Full compatibility with factory design – maintaining correct camshaft operating characteristics without the need for installation modifications.
• Stable gasoline engine operating parameters – reducing the risk of control unit errors, jerking, or power loss.
• Economical repair option – a used OEM part allows for reduced service costs while maintaining an appropriate quality level.

This solution is particularly beneficial for comprehensive camshaft system servicing, where both technical correctness and cost-effectiveness are important.

Part Condition and Application in Service Practice

The offered adjuster is a used part obtained from disassembly, allowing for a cost-effective restoration of the camshaft system's functionality in Mercedes vehicles. This type of component is often chosen for:

• diagnosing faults related to exhaust-side camshaft phase errors,
• repairs after camshaft control system failures,
• preventive replacement of components in high-mileage gasoline engines.

If you are planning more extensive work on the cylinder head or valve system, it is also worth checking other items from the Valve Guides, Springs, and Parts group by using the appropriate category in our store: check related Mercedes valve system components.

Repair Economics and Cost Optimization

With rising service costs, choosing a used OEM part is a sensible compromise between quality and price. A used camshaft adjuster significantly reduces repair costs compared to a new part, while maintaining factory specifications and proper integration with the engine electronics. If you want to better plan your service budget and understand when it is worthwhile to opt for used components, see the article: how to save on car service by choosing used OEM parts.

Summary

The Mercedes W204 W212 Exhaust Camshaft Adjuster M272 M273 is a technically compatible, used camshaft system component for gasoline engines that enables professional repair at controlled costs. By choosing an original adjuster from the Valve Guides, Springs, and Parts group, you gain compatibility with factory control, predictable engine behavior, and the possibility for further, informed expansion of service work.