Mercedes-Benz W203 M111 C 180 200 230 Engine Mount Bracket Left N/S A1112231604

Mercedes-Benz W203 M111 C 180 200 230 Engine Mount Bracket Left N/S is a component from the Engine mounts category, responsible for the stable mounting of the power unit on the left side of the vehicle body. A properly selected engine mount reduces unwanted vibrations, improves engine performance, and enhances driving comfort. This component is designed for Mercedes C-Class W203 generation models with M111 engines, where precise fitment and correct mounting geometry are essential.

Specifications and technical data

• SKU: A1112231604
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1112231604
• Substitutable numbers: A1112231604, A 111 223 16 04, BG
• Location on the vehicle: Left
• Category: Engine Mounts

Purpose and function in the drivetrain

The left engine mount in a Mercedes W203 with an M111 unit plays a key role in transferring loads from the engine to the body. It is responsible for:

• maintaining the correct position of the engine relative to the subframe and the body,
• controlling the movement of the power unit during acceleration, braking, and gear changes,
• working in conjunction with other components from the Engine mounts group to reduce vibrations and noise in the cabin.

Thanks to a properly selected engine mount, the drivetrain maintains stability, and cooperating components – such as drive shafts, exhaust, or engine accessories – operate within the range specified by the manufacturer.

Construction and fitment for Mercedes W203

The presented mount has been designed specifically for the construction of the Mercedes C-Class W203 with an M111 engine, which ensures correct mounting points and compatibility with factory engine mounts. The placement on the left side of the vehicle allows for maintaining the original drivetrain geometry without the need for modifications or adaptations.

Such fitment translates into:

• stable support for the power unit under daily operating conditions,
• proper cooperation with the subframe and other mounts,
• maintenance of factory assembly clearances, which reduces the risk of stress in adjacent components.

Characteristics of the used component

The offered engine mount comes from the secondary market, which allows for cost-effective repair while maintaining the original design specifications. A used component of this type is particularly attractive where compliance with the factory design and real-world fitment for a specific body and engine version are important.

Choosing such a solution is a good combination of reasonable costs and maintaining the assembly parameters provided by the vehicle manufacturer.

Replacement and assembly aspects

Replacement of the left engine mount in a Mercedes W203 with an M111 unit is recommended in situations where the following occur:

• excessive vibrations transferred to the body,
• knocking sounds when starting or changing gears,
• visible deviation of the engine position in the engine bay.

During assembly, it is important to use the correct tightening procedure and check the condition of cooperating elements from the Engine mounts group to restore full stability of the drivetrain.

Selection by part numbers and technical support

To precisely verify the compatibility of the engine mount with a specific version of the Mercedes W203, it is worth using the OEM part number and interchangeable numbers visible in the technical specification. This is the most reliable method to avoid mistakes when ordering, especially in the case of different engine and model year variants.

Additional tips on the safe selection of components by numbers can be found in the online shopping guide – practical tips are included in the article Risk-free online parts shopping – 5 proven ways to verify component compatibility, which discusses, among other things, verifying Mercedes parts by OEM numbers.

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 mounts, brackets, or vibration damping elements, check the available parts in the Mercedes Engine mounts category.

If you are considering a wider scope of work on the vehicle and want to consciously combine new and used components, general tips regarding electronics and secondary market components may be helpful – a practical approach to the topic is presented in the article The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?, which facilitates the assessment of the cost-effectiveness of using used parts in a car.