Mercedes SLK R172 250 CDI Diesel Engine Exhaust Manifold A6511400209

Mercedes SLK R172 250 CDI Diesel Engine Exhaust Manifold is a factory-original exhaust system component designed for the diesel engine in the SLK R172 model. This used manifold, sourced from vehicle dismantling, ensures proper exhaust gas discharge from the cylinders and stable diesel engine operation, while serving as a cost-effective alternative to a new part. Thanks to the preserved original geometry and mounting points, it is a particularly convenient solution for workshops and users expecting a precise fit.

Specifications and technical data

• SKU: A6511400209
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6511400209
• Substitutable numbers: A6511400209, A 651 140 02 09
• Location on the vehicle: Front
• Fuel type: Diesel
• Category: Manifolds & Headers

Purpose and function in the exhaust system

The offered exhaust manifold operates at the front of the vehicle, directly at the diesel engine cylinder head. Its task is to collect exhaust gases from individual cylinders and direct them toward the subsequent components of the exhaust system. A correctly selected manifold is crucial for:

• maintaining proper exhaust flow and backpressure,
• stable operation of the turbocharged diesel engine,
• limiting leaks and power loss,
• reducing noise and vibrations transmitted to the chassis.

By using the original design, the manifold works with the factory engine equipment, which facilitates installation and reduces the risk of fitment issues.

Benefits of using an original exhaust manifold

In the case of diesel units, using the correct manifold has a direct impact on the durability and refinement of the engine. By choosing this component, you gain:

• a precise fit for the 250 CDI unit in the SLK R172 body,
• preservation of factory exhaust flow parameters,
• the ability to install it seamlessly in place of a worn or damaged part,
• a reasonable compromise between repair costs and exhaust system functionality.

This solution is suitable both for standard repairs and for restoring the car to its original specifications after previous modifications.

Condition, origin, and practical application

The presented exhaust manifold is a used part, sourced from a dismantled Mercedes vehicle. This type of part is particularly attractive for workshops specializing in servicing diesel engine models, where quick availability and maintaining the factory character of the powertrain are important. The manifold can be used both for typical replacements due to leaks and for repairs related to overheating or mechanical damage in the exhaust system area.

Technical support and exhaust system development

If you are interested in a broader context regarding the operation of the exhaust system, the selection of used manifolds, and the impact of these components on the performance and durability of diesel units, it is worth checking out the guide on our blog: performance exhaust systems and used manifolds for premium cars. You will find practical tips on selecting components for Mercedes and other brands, as well as a discussion of the most common operational problems.

Mercedes exhaust manifolds – expansion and completion

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 manifolds, connection sections, or mounting hardware, check the available parts in the Mercedes exhaust manifolds category.