Mercedes-Benz A-Class W168 A170CDI 668.940 Dual Twin Mass Flywheel Clutch Kit

Mercedes-Benz A-Class W168 A170CDI 668.940 Dual Twin Mass Flywheel Clutch Kit is a specialized set designed for the 668.940 unit, ensuring stable torque transmission and reducing drivetrain vibrations. Thanks to the use of a dual-mass flywheel, it improves the refinement of the diesel engine and increases driving comfort in typical urban conditions and on the highway.

Specifications and technical data

• SKU: A6680300805
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6680300805
• Substitutable numbers: A6680300805 A0002525905 A0192500801, A 668 030 08 05, A 000 252 59 05, A 019 250 08 01, ŁS
• Offset (ET):
• Category: Flywheels & Flexplates

Purpose and compatibility

The presented clutch kit with a dual-mass flywheel has been developed for the Mercedes-Benz A-Class W168 A170CDI model with the 668.940 engine. The design of the kit is matched to the torque characteristics of this unit, which allows for effective damping of torsional vibrations and stable cooperation with the transmission.

The component belongs to the Flywheels and gears group, which means it is responsible for a key stage of power transmission between the engine and the gearbox, affecting the smoothness of starting, gear shifting, and the overall refinement of the drivetrain.

Construction and function of the dual-mass flywheel clutch kit

The dual-mass flywheel in this kit works in tandem with the clutch disc and pressure plate, forming a complete system responsible for engaging and disengaging the engine from the gearbox. The use of a dual-mass design allows for:

• reduction of vibrations transmitted from the crankshaft to the transmission,
• noise reduction in the cabin at low and medium RPM,
• smoother starting, especially in heavy city traffic,
• better protection of gearbox components against dynamic overloads.

A properly selected clutch kit with a dual-mass flywheel helps maintain stable drivetrain operation, which translates into vehicle comfort and reduces the risk of premature wear of other components.

Performance characteristics and installation benefits

Replacing a worn-out clutch kit with a dual-mass flywheel with a functional unit dedicated to the A-Class W168 A170CDI allows for restoring the correct drivetrain operating parameters. After installation, you can expect:

• smoother gear shifting under load,
• reduction of jerking during starting and downshifting,
• reduction of vibrations felt on the body and in the cabin,
• more predictable clutch operation across the entire RPM range.

The product comes from the Mercedes brand, which helps maintain dimensional and structural compatibility with the factory drivetrain, thereby facilitating installation in a specialized service center.

Component condition and service application

The Mercedes-Benz A-Class W168 A170CDI 668.940 Dual Twin Mass Flywheel Clutch Kit is offered as a used part, making it an attractive solution for budget repairs of a high-mileage A-Class W168 A170CDI. This type of component is particularly useful for:

• comprehensive drivetrain maintenance,
• repairs after a clutch or dual-mass flywheel failure,
• restoring the efficiency of a vehicle used mainly in city traffic.

By maintaining the original geometry and operating parameters, the use of such a kit allows for maintaining factory clutch operating characteristics without the need to modify other system components.

Related components and additional information

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

If you are also interested in the impact of mechanical modifications on engine performance and are looking for practical tips regarding the exhaust system and components working with the power unit, it is worth reading the article Performance exhaust system: used manifolds and sports catalytic converters on the road, which helps to better understand the relationships between different drivetrain components.