MCC/Smart Torque converter seal replacement

Is It Important to Replace a Leaking Torque Converter Seal on Your MCC/Smart?

An automatic transmission is a staple of the automotive industry as more and more manufacturers move away from the once-popular manual transmission.

One of the main components that allow the automatic transmission to operate is the torque converter. This is a fluid-filled component that directs the transmission fluid according to the drive conditions and allows the MCC/Smart to come to a stop without stalling.

It is connected to the ring gear of the engine and attaches to the input shaft of the automatic transmission. This connection is sealed via the torque converter seal.

This seal prevents the automatic transmission fluid from leaking out of the join between the input shaft and torque converter and also prevents any dirt and debris from entering the sensitive internals of the transmission.

This seal can degrade over time, so if you notice transmission fluid leaking under your MCC/Smart or it shows low transmission fluid on the dipstick, it’s might be time to replace the seal.

This can be an expensive repair as the only way to access the torque converter seal is to remove the transmission from the MCC/Smart.

The torque converter seal is of a similar design to many other seals fitted to your vehicle. It utilises a solid outer ring, usually made from alloy, and a rubber inner ring which is fitted with a thin spring to hold tension on the seal.

Signs that your MCC/Smart torque converter seal has failed:

• Transmission fluid leaking under the vehicle
• Low transmission fluid
• Erratic transmission operation

It is best practice to replace the transmission fluid at the same time as the torque converter seal replacement to ensure no debris has entered the transmission.

On some vehicles, the engine and transmission will both need to be removed to carry out torque converter seal replacement.

Having a transmission leak on your MCC/Smart may increase the wear and tear on the internals of the transmission, and even potentially lead to complete transmission failure, all because of a leaking seal.

Replacing the torque converter seal as soon as it’s noticed to be leaking may shock you with the pricing, but it is far cheaper than having to replace the complete transmission assembly when it fails.

This seal can develop a leak over time and will need to be replaced on your MCC/Smart to ensure correct operation and avoid costly repairs.

That’s where the talented technicians from AutoGuru come in!