Torque converter automatic transmission Mercedes-Benz W211
The torque converter is one of the key components of the Mercedes-Benz W211 automatic transmission. It performs the following functions:
*Power Transfer: The torque converter transfers power from the engine to the automatic transmission.
* Traction: It allows the engine to idle even when the car is moving.
*Torque Multiplier: The torque converter multiplies the engine’s torque at low speeds for smooth starting and acceleration.
* Vibration Absorption: It absorbs vibrations and shocks that occur in the transmission.
Design
The Mercedes-Benz W211 torque converter consists of the following main components:
* Pump: The pump, driven by the engine, creates a flow of working fluid.
* Turbine: The turbine, connected to the automatic transmission output shaft, receives fluid flow from the pump and creates torque.
* Stator: The stator is located between the pump and the turbine. It directs the flow of fluid, multiplying torque and absorbing vibrations.
*Hydraulic Fluid: The hydraulic fluid (transmission oil) transfers power between the torque converter components.
Characteristics
The torque converter in the Mercedes-Benz W211 automatic transmission has the following characteristics:
*Torque multiplication: About 2.5-3.0 at low engine speeds
* Maximum efficiency: About 90% under optimal operating conditions
* Size and Weight: It is relatively compact and has a medium weight
Service
The torque converter is a reliable component, but regular maintenance is essential to its longevity. Service includes:
* Replacing the working fluid: The working fluid should be replaced every 60,000-80,000 km or in accordance with the manufacturer’s recommendations.
* Cleaning the filter: The torque converter filter prevents debris from entering the system. It must be cleaned or replaced along with the replacement of the working fluid.
* Inspection and repair: If the torque converter malfunctions, such as slipping, vibration or noise, it is necessary to carry out diagnosis and repair.
Proper maintenance of the torque converter in the Mercedes-Benz W211 automatic transmission guarantees smooth and reliable gear shifting, as well as transmission durability.