Mercedes R171 Exhaust Camshaft Positioner Adjuster Right O/S M272 A2720505047

The Mercedes R171 Exhaust Camshaft Adjuster Right M272 is an original timing system component designed for gasoline engines, ensuring precise control of valve timing on the exhaust side. Thanks to its factory design for the Mercedes brand, it guarantees a proper fit to the cylinder head and correct interaction with the engine control system. A used component allows for a technically sound repair while maintaining cost-effective servicing.

Specifications and technical data

• SKU: A2720505047
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2720505047
• Substitutable numbers: A2720505047, A 272 050 50 47, A2720506847, A 272 050 68 47
• Location on the vehicle: Right
• Fuel type: Petrol
• Category: Camshafts

Purpose and Function in the Timing System

The presented exhaust camshaft adjuster is an element from the Camshafts category, responsible for changing the position of the exhaust camshaft relative to the crankshaft. Mounted on the right side of the engine unit, it works with the M272 engine control system, enabling dynamic adjustment of camshaft timing depending on load and rotational speed.

In practice, this translates to:

• efficient filling and emptying of cylinders on the exhaust side,
• stable engine operation across the entire RPM range,
• maintenance of correct exhaust emission parameters in gasoline engines,
• improved throttle response while maintaining engine smoothness.

Construction, Location, and Compatibility

The adjuster is designed as a precision mechanism that works with the camshaft on the right side of the cylinder head. Its construction is adapted for use in a gasoline-powered engine, where quick and repeatable adjustment of exhaust valve timing is required. Proper placement on the vehicle ensures correct lubrication oil flow and a secure connection to the timing drive.

Thanks to the use of factory solutions for the Mercedes brand, the component maintains compliance with factory assembly tolerances, which facilitates servicing and reduces the risk of timing synchronization issues after replacement.

Benefits of Using an Original Adjuster

Using an original exhaust camshaft adjuster in the M272 engine allows for the restoration of correct variable valve timing system operation without the need to modify other components. This solution is particularly beneficial in cases of symptoms such as rough idling, loss of dynamic performance, or errors related to camshaft synchronization.

Key advantages include:

• Factory fit for the Mercedes engine unit, with no need for mechanical adaptation.
• The ability to maintain the original performance characteristics of the gasoline engine.
• Reduced risk of secondary failures resulting from improper timing system operation.
• A reasonable compromise between repair cost and durability due to the use of a pre-owned part.

Condition, Verification, and Service Application

The offered adjuster is a used part, removed from a vehicle, and sold as a used component, allowing for economical repair while maintaining the original manufacturer's specifications. This type of component is often chosen for comprehensive cylinder head work, camshaft replacement, or when addressing issues with the variable valve timing system.

Due to its function, this element is recommended for installation in specialized workshops that have appropriate procedures for setting timing and verifying synchronization accuracy after replacement.

Repair Extension and Additional Information

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other parts from the same group, such as camshafts, variable valve timing sprockets, or cooperating mechanisms, check the available parts in the Mercedes Camshafts category.

When deciding to use a used component, it is worth analyzing the differences between new and aftermarket parts in terms of cost and durability – the article Car Parts – New or Used? Comparing Costs, Quality, and Durability, which discusses practical aspects of selecting components for vehicle repair, may be helpful.