Mercedes-Benz W203 W208 W210 W220 M112 M113 Automatic Gearbox Flywheel Ring

Mercedes-Benz W203 W208 W210 W220 M112 M113 Automatic Gearbox Flywheel Ring is a specialized drivetrain component designed for Mercedes vehicles equipped with an automatic transmission. It is responsible for the stable transfer of torque between the engine and the transmission, influencing the drivetrain's performance and smooth gear shifting. Choosing an original flywheel from this group is a particularly beneficial solution for repairs, upgrades, or restoring the factory operating parameters of the system.

Specifications and technical data

• SKU: A1130300012
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1130300012
• Substitutable numbers: A1130300012, A 113 030 00 12, A1120320252, A 112 032 02 52, KZ
• Gearbox type: Automatic
• Category: Flywheels & Flexplates

Purpose and function in the drivetrain

The flywheel in an automatic transmission plays a key role in stabilizing engine speed and transferring power to the torque converter. In Mercedes C-Class and E-Class models of the W203, W208, and W210 generations, this component works with the transmission control system, contributing to smooth starting, reduction of torsional vibrations, and comfort during gear changes. Using a dedicated flywheel allows for maintaining the proper balance of the powertrain and reducing unwanted vibrations.

Benefits of using an original flywheel

Selecting a flywheel that complies with Mercedes factory specifications ensures:

• proper cooperation with the automatic transmission and torque converter,
• stable torque transfer across the entire RPM range,
• reduction of dynamic loads acting on the crankshaft and transmission,
• more predictable vehicle behavior during acceleration and downshifting.

For the user, this means more consistent drivetrain operation and a reduction in the risk of secondary failures resulting from improper part selection. For vehicles under intensive use, the application of the correct flywheel is also important for the longevity of the automatic transmission.

Product characteristics and condition

The offered flywheel comes from the Flywheels and gears group and is intended for use with automatic transmissions in Mercedes vehicles. The item is used, which in practice means that before installation, it is worth verifying its working surface, the condition of the ring gear, and any signs of wear in relation to the requirements of the specific vehicle. For workshops and users consciously selecting used parts, this is a solution that allows for optimizing repair costs while maintaining compliance with the factory design.

Application in Mercedes vehicles

Mercedes-Benz W203 W208 W210 W220 M112 M113 Automatic Gearbox Flywheel Ring is dedicated to units paired with an automatic transmission, where maintaining proper balance and mounting geometry is essential. Proper matching to the specific engine-transmission configuration helps avoid installation problems, incorrect engagement with the starter, or unwanted vibrations during operation. Before purchasing, it is recommended to compare the parameters with the currently installed component and verify compatibility using the numbers in the technical specification.

Support with selection and additional materials

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Mercedes and need other elements from the same group, such as gears, additional flywheels, or related mounting components, check the available parts in the Mercedes flywheels and gears category.

For those considering the use of aftermarket components in upgrade projects, an article describing how to consciously choose used parts will be useful – you can find it here: The best used parts for tuning your car.

If you want to deepen your knowledge on verifying part compatibility using OEM numbers, including elements for Mercedes, this guide may be helpful: Risk-free online parts shopping – verifying components by OEM numbers.