The inductive charging system will become available on the options list of the S500e when the facelifted car debuts in 2017.
Cars equipped with the inductive wireless recharge system have a secondary coil fitted between the front axle, while a base plate containing a primary coil is installed in, say, the garage at home.
When the car is driven over the base plate, a display in the cabin will guide the driver to the optimal charging spot where the coils are aligned. Once in place, the system will begin charging and monitoring the car.
The system is capable of a power output of up to 3.6kW and is said to have an efficiency rate of around 90 percent.
As part of the facelift, the S500e will also be upgraded with a 13.3kWh lithium-ion battery pack, which takes the place of today's 8.7kWh unit. This should see electric-only only driving range improve from around 32 kilometres to over 50km.
It's expected that the S500e will retain its current drivetrain. Consisting of a 245kW/480Nm 3.0-litre V6 and a 85kW electric motor, total system output is rated 325kW of power and 650Nm of torque.
At present, the plug-in hybrid S-Class isn't offered in Australia.
The only electrified drivetrain available in the Australian S-Class range is the S300h, which mates together a 150kW/500Nm 2.2-liter four-cylinder turbo-diesel with a 20kW electric motor and a seven-speed automatic transmission.
Note: Current Mercedes-Benz S500e pictured above.