Mercedes W204 W212 Crankshaft Housing Rear Oil Seal Cover M272 A1120110108

Mercedes W204 W212 Crankshaft Housing Rear Oil Seal Cover M272 is a precision timing system component, designed specifically for the M272 series gasoline engines. As part of the Timing chain and belt covers group, it is responsible for securely protecting the rear part of the crankshaft and ensuring the tightness of the engine's operating area. Using an original component allows for a technically correct repair without interfering with the factory design of the power unit.

Specifications and technical data

• SKU: A2720100514
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2720100514
• Substitutable numbers: A2720100514, A 272 010 05 14
• Location on the vehicle: Rear
• Fuel type: Petrol
• Category: Timing Covers

Purpose and function in the M272 engine

The described rear crankshaft cover operates in the rear timing assembly area of the gasoline engine. Its task is to protect critical components of the crankshaft-piston system and maintain proper sealing between the block and other timing drive components. Thanks to its precise fit for the specific generation of M272 units, the correct geometry is maintained, which reduces the risk of leaks and unwanted vibrations.

A properly selected rear crankshaft cover is important for both the durability of the timing system and the engine's smooth operation. Replacing a worn or damaged part with an original salvaged cover allows for the restoration of proper operating conditions in the rear part of the power unit without the need for costly interference with the entire block.

Benefits of using an original cover

Using an original rear crankshaft cover in a Mercedes with a gasoline engine provides a number of practical service benefits:

• factory fit to the block and timing system, with no need for assembly modifications,
• maintenance of proper sealing in the rear part of the engine,
• stable guidance and protection of components working with the crankshaft,
• reduction of the risk of oil leaks in the timing assembly area,
• possibility of an economical repair while maintaining parameters close to factory specifications.

For workshops and private users, this means more predictable assembly and a lower risk of operational problems after the repair is completed. The original design ensures compliance with factory tolerances and the operating characteristics of the power unit.

Assembly characteristics and area of application

The cover has been designed for installation in the rear part of the power unit, in the immediate vicinity of the crankshaft. This location requires maintaining appropriate surface flatness and structural rigidity so as not to disrupt the operation of seals and mating components. In the case of Mercedes M272 family gasoline engines, this is of particular importance due to the specific timing architecture.

A used salvaged part, coming from the same family of units, allows for compatibility with the manufacturer's factory solutions. For a mechanic, this means a predictable assembly process, and for the user – the restoration of proper operating conditions in the rear zone of the engine without the need to use replacements with uncertain fitment.

Mercedes timing chain and belt covers – expansion and modernization

If you are planning a comprehensive repair or modernization of the engine area in your Mercedes and need other elements from the same group, such as additional covers, side shields, or timing drive protection elements, check out the available parts in the Mercedes timing chain and belt covers category.

Practical service tips

When planning to replace the rear crankshaft cover, it is worth paying attention to the condition of the mating seals and the contact surfaces on the engine block. In many cases, combining the replacement of the cover with an inspection of other timing components allows for reducing service downtime and optimizing labor costs. It is also good practice to verify any signs of leaks near the transmission, which may indicate the need for intervention in the rear part of the power unit.

If you are interested in a broader context of economical vehicle repair using salvaged components and want to better understand how used parts can improve driving comfort at reasonable costs, take a look at the article Knocking in the suspension? Discover a clever way to restore factory handling precision without spending a fortune at the service center, which discusses a practical approach to servicing subassemblies using proven used parts.