Mercedes W204 W211 M156 Inlet Exhaust Camshaft Pilot Bushing Ring A1560520450

Mercedes W204 W211 M156 Inlet Exhaust Camshaft Pilot Bushing Ring is a precision timing system component designed for Mercedes M156 series engines. It is responsible for the stable guidance of the camshaft, which translates into proper valve operation and smooth engine performance. This used, original component from the Camshafts category is a sensible choice for professional timing system repairs or overhauls in high-end Mercedes vehicles.

Specifications and technical data

• SKU: A1560520450
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1560520450
• Substitutable numbers: A1560520450, A 156 052 04 50
• Category: Camshafts

Purpose and function in the timing system

The described camshaft pilot bushing ring operates in the immediate vicinity of the camshaft, ensuring its proper guidance in the cylinder head and maintaining stable axial alignment. In Mercedes M156 engines, this is crucial for:

• maintaining the correct position of the camshaft relative to the lobes and valves,
• limiting operating clearances in the timing system,
• reducing vibrations and noise resulting from camshaft operation,
• maintaining correct timing phase synchronization.

Thanks to this component, the timing system can operate in a repeatable and predictable manner, which is particularly important in high-revving Mercedes engines.

Benefits of using an original Mercedes component

Choosing an original camshaft bushing for a Mercedes allows you to maintain factory fit tolerances and timing performance characteristics. In practice, this means:

• better fitment to the camshaft and cylinder head seats compared to aftermarket replacements,
• consistency with other timing system components,
• reduced risk of premature wear of the camshaft and mating surfaces,
• easier diagnostics and future servicing.

For workshops specializing in the Mercedes brand and for informed users, this means a more predictable repair outcome and the ability to maintain engine performance parameters at a level close to factory specifications.

Use in service and timing system overhauls

This type of component is used both for comprehensive cylinder head overhauls and for targeted timing system repairs. It is suitable in situations where:

• excessive camshaft play has been detected,
• replacement of worn guide bushings is necessary,
• an engine rebuild is being performed following a mechanical timing failure,
• preventive replacement of components interacting with the camshaft is being carried out.

Using a used, original component allows for optimized repair costs while maintaining high quality and compliance with factory solutions.

Integration with other Mercedes Camshaft components

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 camshafts, drive gears, or brackets, check out the available parts in the Mercedes Camshafts category.

Technical knowledge and timing diagnostics

When working with timing components, it is worth relying on proven service procedures and experience from other designs. To compare symptoms of wear and approaches to timing repairs in modern engines, you can use our guide: BMW N47 timing chain – typical failure and repair using original BMW parts. Although it concerns a different brand, the article helps to better understand the importance of precise assembly and the selection of appropriate components in the timing system.